From 4117224c600d4db6b470921d11b4db4edf1905eb Mon Sep 17 00:00:00 2001 From: windy <1374721899@qq.com> Date: Tue, 30 Oct 2018 13:47:07 +0800 Subject: [PATCH] =?UTF-8?q?=E6=97=A0JIRA=E4=BB=BB=E5=8A=A1=20=E6=8D=A2?= =?UTF-8?q?=E4=B8=80=E4=B8=8BdeepExtend?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- dist/bundle.ie.js | 19955 +++++++++++----------- dist/bundle.ie.min.js | 8 +- dist/bundle.js | 19953 +++++++++++----------- dist/bundle.min.js | 8 +- dist/core.js | 20109 ++++++++++++----------- dist/demo.js | 25 +- dist/fineui.ie.js | 19955 +++++++++++----------- dist/fineui.ie.min.js | 8 +- dist/fineui.js | 19953 +++++++++++----------- dist/fineui.min.js | 8 +- dist/fineui_without_jquery_polyfill.js | 20107 +++++++++++----------- dist/utils.js | 20109 ++++++++++++----------- dist/utils.min.js | 6 +- lodash.md | 2 +- src/core/base.js | 7 +- src/core/lodash.js | 20044 +++++++++++----------- 16 files changed, 80264 insertions(+), 79993 deletions(-) diff --git a/dist/bundle.ie.js b/dist/bundle.ie.js index d82c4cbeb..d8abf25d0 100644 --- a/dist/bundle.ie.js +++ b/dist/bundle.ie.js @@ -22,7 +22,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -30,10084 +30,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + /*--------------------------------------------------------------------------*/ - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + /** Used to generate unique IDs. */ + var idCounter = 0; - /*--------------------------------------------------------------------------*/ + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; + if (index < 0) { + return false; } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; } + } - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; } - return result; + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } } + return true; + } - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - while (++index < length) { - array[offset + index] = values[index]; + if (newValue === undefined) { + newValue = srcValue; } - return array; + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; + var isCommon = newValue === undefined; - if (initAccum && length) { - accumulator = array[++index]; + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); } - return false; - } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; + else { + seen = iteratee ? [] : result; } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; + partials = holders = undefined; } + var data = isBindKey ? undefined : getData(func); - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - while (++index < n) { - result[index] = iteratee(index); + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; } - return result; - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } + object = object.buffer; + other = other.buffer; - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + case errorTag: + return object.name == other.name && object.message == other.message; - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + case mapTag: + var convert = mapToArray; - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - while (length--) { - if (array[length] === placeholder) { - ++result; - } + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; } + bitmask |= COMPARE_UNORDERED_FLAG; + + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); return result; + + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); + }); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); + case boolTag: + case dateTag: + return new Ctor(+object); - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } + case dataViewTag: + return cloneDataView(object, isDeep); - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; + case mapTag: + return new Ctor; - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } + case numberTag: + case stringTag: + return new Ctor(object); - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); + case regexpTag: + return cloneRegExp(object); - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } + case setTag: + return new Ctor; - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; + case symbolTag: + return cloneSymbol(object); } + } - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; }); - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); + }; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } - return this; + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; } - - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; } - - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { - return false; + if (isPrototype(value)) { + return !baseKeys(value).length; } - - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); } - /*------------------------------------------------------------------------*/ - - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; } - - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; - - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); - - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); - - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; - - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; }); - - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; - - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); }); - - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); - - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; + }; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); - - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); - LazyWrapper.prototype.compact = function() { - return this.filter(identity); - }; + /*------------------------------------------------------------------------*/ - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; }; - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); - }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; }; + }); - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; }; + }); - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); - }; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); }; + }); - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; - }; - }); + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); + } + return this.map(function(value) { + return baseInvoke(value, path, args); }); - - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); - - names.push({ 'name': methodName, 'func': lodashFunc }); - } + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; }); - - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; - - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; - - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; - - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } - - /*--------------------------------------------------------------------------*/ - - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; - - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; - } + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 基本函数 @@ -10675,6 +10711,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -10787,12 +10824,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - 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Date(c[0],c[1],c[2],c[3],c[4],c[5],c[6]);break;default:a=new Date}return BI.isNotNull(BI.timeZone)?a.getTime()-BI.timeZone-6e4*(new Date).getTimezoneOffset():a.getTime()}})}(),!function(){function a(){for(var a,b,c,d,e=arguments[0]||{},f=arguments.length,g=1;g0;)BI.prepares.shift()();var e,f;if(a||(a={}),BI.isWidget(c)?(d=c,c={}):c||(c={}),BI.isEmpty(a)&&BI.isEmpty(c))return BI.createWidget({type:"bi.layout"});if(BI.isWidget(a))return a;if(a.type||c.type)return e=BI.extend({},c,a),f=BI.Plugin.getWidget(e.type,e),f.type===e.type?BI.Plugin.getObject(e.type,b(f)):BI.createWidget(BI.extend({},a,{type:f.type},c));if(a.el&&(a.el.type||c.type))return e=BI.extend({},c,a.el),f=BI.Plugin.getWidget(e.type,e),f.type===e.type?BI.Plugin.getObject(e.type,b(f)):BI.createWidget(BI.extend({},a,{type:f.type},c));if(BI.isWidget(a.el))return a.el;throw new Error("无法根据item创建组件")}}(),!function(){function a(a){return function(b,c,d){var e,f=b[c];f&&f.target==b||(e=b[c]=function(){for(var a,b=e.before,c=arguments,d=b.length;d--;){if(a=b[d].advice.apply(this,c),a===!1)return!1;c=a||c}for(var f=e.method.apply(this,c),g=e.after,h=0,i=g.length;h127&&d<2048?(b+=String.fromCharCode(d>>6|192),b+=String.fromCharCode(63&d|128)):(b+=String.fromCharCode(d>>12|224),b+=String.fromCharCode(d>>6&63|128),b+=String.fromCharCode(63&d|128))}return b},c=function(a){for(var b="",c=0,d=0,e=0,f=0;c191&&d<224?(f=a.charCodeAt(c+1),b+=String.fromCharCode((31&d)<<6|63&f),c+=2):(f=a.charCodeAt(c+1),e=a.charCodeAt(c+2),b+=String.fromCharCode((15&d)<<12|(63&f)<<6|63&e),c+=3);return b};_.extend(BI,{encode:function(c){var d,e,f,g,h,i,j,k="",l=0;for(c=b(c);l>2,h=(3&d)<<4|e>>4,i=(15&e)<<2|f>>6,j=63&f,isNaN(e)?i=j=64:isNaN(f)&&(j=64),k=k+a.charAt(g)+a.charAt(h)+a.charAt(i)+a.charAt(j);return k},decode:function(b){var d,e,f,g,h,i,j,k="",l=0;for(b=b.replace(/[^A-Za-z0-9\+\/\=]/g,"");l>4,e=(15&h)<<4|i>>2,f=(3&i)<<6|j,k+=String.fromCharCode(d),64!=i&&(k+=String.fromCharCode(e)),64!=j&&(k+=String.fromCharCode(f));return k=c(k)}})}(),BI.Cache={_prefix:"bi",setUsername:function(a){localStorage.setItem(BI.Cache._prefix+".username",(a+""||"").toUpperCase())},getUsername:function(){return localStorage.getItem(BI.Cache._prefix+".username")||""},_getKeyPrefix:function(){return BI.Cache.getUsername()+"."+BI.Cache._prefix+"."},_generateKey:function(a){return BI.Cache._getKeyPrefix()+(a||"")},getItem:function(a){return localStorage.getItem(BI.Cache._generateKey(a))},setItem:function(a,b){localStorage.setItem(BI.Cache._generateKey(a),b)},removeItem:function(a){localStorage.removeItem(BI.Cache._generateKey(a))},clear:function(){for(var a=localStorage.length;a>=0;a--){var b=localStorage.key(a);b&&0===b.indexOf(BI.Cache._getKeyPrefix())&&localStorage.removeItem(b)}},keys:function(){for(var a=[],b=localStorage.length;b>=0;b--){var c=localStorage.key(b);if(c){var d=BI.Cache._getKeyPrefix();0===c.indexOf(d)&&(a[a.length]=c.substring(d.length))}}return a},addCookie:function(a,b,c,d){var e=a+"="+escape(b);if(d&&d>0){var f=new Date;f.setTime(BI.getTime()+3600*d*1e3),e=e+"; expires="+f.toGMTString()}c&&(e=e+"; path="+c),document.cookie=e},getCookie:function(a){var b,c=new RegExp("(^| )"+a+"=([^;]*)(;|$)");return(b=document.cookie.match(c))?unescape(b[2]):null},deleteCookie:function(a,b){var c=new Date;c.setTime(BI.getTime()-1e4);var d=a+"=v; expires="+c.toGMTString();b&&(d=d+"; path="+b),document.cookie=d}},BI.CellSizeAndPositionManager=function(a,b,c){this._cellSizeGetter=b,this._cellCount=a,this._estimatedCellSize=c,this._cellSizeAndPositionData={},this._lastMeasuredIndex=-1},BI.CellSizeAndPositionManager.prototype={constructor:BI.CellSizeAndPositionManager,configure:function(a,b){this._cellCount=a,this._estimatedCellSize=b},getCellCount:function(){return this._cellCount},getEstimatedCellSize:function(){return this._estimatedCellSize},getLastMeasuredIndex:function(){return this._lastMeasuredIndex},getSizeAndPositionOfCell:function(a){if(!(a<0||a>=this._cellCount)){if(a>this._lastMeasuredIndex){for(var b=this.getSizeAndPositionOfLastMeasuredCell(),c=b.offset+b.size,d=this._lastMeasuredIndex+1;d<=a;d++){var e=this._cellSizeGetter(d);null==e||isNaN(e)||(this._cellSizeAndPositionData[d]={offset:c,size:e},c+=e)}this._lastMeasuredIndex=a}return this._cellSizeAndPositionData[a]}},getSizeAndPositionOfLastMeasuredCell:function(){return this._lastMeasuredIndex>=0?this._cellSizeAndPositionData[this._lastMeasuredIndex]:{offset:0,size:0}},getTotalSize:function(){var a=this.getSizeAndPositionOfLastMeasuredCell();return a.offset+a.size+(this._cellCount-this._lastMeasuredIndex-1)*this._estimatedCellSize},getUpdatedOffsetForIndex:function(a,b,c,d){var e,f=this.getSizeAndPositionOfCell(d),g=f.offset,h=g-b+f.size;switch(a){case"start":e=g;break;case"end":e=h;break;case"center":e=g-(b-f.size)/2;break;default:e=Math.max(h,Math.min(g,c))}var i=this.getTotalSize();return Math.max(0,Math.min(i-b,e))},getVisibleCellRange:function(a,b){var c=this.getTotalSize();if(0===c)return{};var d=b+a,e=this._findNearestCell(b),f=this.getSizeAndPositionOfCell(e);b=f.offset+f.size;for(var g=e;bc&&(a=d-1)}if(b>0)return b-1},_exponentialSearch:function(a,b){for(var c=1;a=a?this._binarySearch(c,0,a):this._exponentialSearch(c,a)}}},BI.ScalingCellSizeAndPositionManager=function(a,b,c,d){this._cellSizeAndPositionManager=new BI.CellSizeAndPositionManager(a,b,c),this._maxScrollSize=d||1e7},BI.ScalingCellSizeAndPositionManager.prototype={constructor:BI.ScalingCellSizeAndPositionManager,configure:function(){this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager,arguments)},getCellCount:function(){return this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDO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this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDOMZBLZWPDWYYGDSTTHCSQSCCRSSSYSLFYBFNTYJSZDFNDPDHDZZMBBLSLCMYFFGTJJQWFTMTPJWFNLBZCMMJTGBDZLQLPYFHYYMJYLSDCHDZJWJCCTLJCLDTLJJCPDDSQDSSZYBNDBJLGGJZXSXNLYCYBJXQYCBYLZCFZPPGKCXZDZFZTJJFJSJXZBNZYJQTTYJYHTYCZHYMDJXTTMPXSPLZCDWSLSHXYPZGTFMLCJTYCBPMGDKWYCYZCDSZZYHFLYCTYGWHKJYYLSJCXGYWJCBLLCSNDDBTZBSCLYZCZZSSQDLLMQYYHFSLQLLXFTYHABXGWNYWYYPLLSDLDLLBJCYXJZMLHLJDXYYQYTDLLLBUGBFDFBBQJZZMDPJHGCLGMJJPGAEHHBWCQXAXHHHZCHXYPHJAXHLPHJPGPZJQCQZGJJZZUZDMQYYBZZPHYHYBWHAZYJHYKFGDPFQSDLZMLJXKXGALXZDAGLMDGXMWZQYXXDXXPFDMMSSYMPFMDMMKXKSYZYSHDZKXSYSMMZZZMSYDNZZCZXFPLSTMZDNMXCKJMZTYYMZMZZMSXHHDCZJEMXXKLJSTLWLSQLYJZLLZJSSDPPMHNLZJCZYHMXXHGZCJMDHXTKGRMXFWMCGMWKDTKSXQMMMFZZYDKMSCLCMPCGMHSPXQPZDSSLCXKYXTWLWJYAHZJGZQMCSNXYYMMPMLKJXMHLMLQMXCTKZMJQYSZJSYSZHSYJZJCDAJZYBSDQJZGWZQQXFKDMSDJLFWEHKZQKJPEYPZYSZCDWYJFFMZZYLTTDZZEFMZLBNPPLPLPEPSZALLTYLKCKQZKGENQLWAGYXYDPXLHSXQQWQCQXQCLHYXXMLYCCWLYMQYSKGCHLCJNSZKPYZKCQZQLJPDMDZHLASXLBYDWQLWDNBQCRYDDZTJYBKBWSZDXDTNPJDTCTQDFXQQMGNXECLTTBKPWSLCTYQLPWYZZKLPYGZCQQPLLKCCYLPQMZCZQCLJSLQZDJXLDDHPZQDLJJXZQDXYZQKZLJCYQDYJPPYPQYKJYRMPCBYMCXKLLZLLFQPYLLLMBSGLCYSSLRSYSQTMXYXZQZFDZUYSYZTFFMZZSMZQHZSSCCMLYXWTPZGXZJGZGSJSGKDDHTQGGZLLBJDZLCBCHYXYZHZFYWXYZYMSDBZZYJGTSMTFXQYXQSTDGSLNXDLRYZZLRYYLXQHTXSRTZNGZXBNQQZFMYKMZJBZYMKBPNLYZPBLMCNQYZZZSJZHJCTZKHYZZJRDYZHNPXGLFZTLKGJTCTSSYLLGZRZBBQZZKLPKLCZYSSUYXBJFPNJZZXCDWXZYJXZZDJJKGGRSRJKMSMZJLSJYWQSKYHQJSXPJZZZLSNSHRNYPZTWCHKLPSRZLZXYJQXQKYSJYCZTLQZYBBYBWZPQDWWYZCYTJCJXCKCWDKKZXSGKDZXWWYYJQYYTCYTDLLXWKCZKKLCCLZCQQDZLQLCSFQCHQHSFSMQZZLNBJJZBSJHTSZDYSJQJPDLZCDCWJKJZZLPYCGMZWDJJBSJQZSYZYHHXJPBJYDSSXDZNCGLQMBTSFSBPDZDLZNFGFJGFSMPXJQLMBLGQCYYXBQKDJJQYRFKZTJDHCZKLBSDZCFJTPLLJGXHYXZCSSZZXSTJYGKGCKGYOQXJPLZPBPGTGYJZGHZQZZLBJLSQFZGKQQJZGYCZBZQTLDXRJXBSXXPZXHYZYCLWDXJJHXMFDZPFZHQHQMQGKSLYHTYCGFRZGNQXCLPDLBZCSCZQLLJBLHBZCYPZZPPDYMZZSGYHCKCPZJGSLJLNSCDSLDLXBMSTLDDFJMKDJDHZLZXLSZQPQPGJLLYBDSZGQLBZLSLKYYHZTTNTJYQTZZPSZQZTLLJTYYLLQLLQYZQLBDZLSLYYZYMDFSZSNHLXZNCZQZPBWSKRFBSYZMTHBLGJPMCZZLSTLXSHTCSYZLZBLFEQHLXFLCJLYLJQCBZLZJHHSSTBRMHXZHJZCLXFNBGXGTQJCZTMSFZKJMSSNXLJKBHSJXNTNLZDNTLMSJXGZJYJCZXYJYJWRWWQNZTNFJSZPZSHZJFYRDJSFSZJZBJFZQZZHZLXFYSBZQLZSGYFTZDCSZXZJBQMSZKJRHYJZCKMJKHCHGTXKXQGLXPXFXTRTYLXJXHDTSJXHJZJXZWZLCQSBTXWXGXTXXHXFTSDKFJHZYJFJXRZSDLLLTQSQQZQWZXSYQTWGWBZCGZLLYZBCLMQQTZHZXZXLJFRMYZFLXYSQXXJKXRMQDZDMMYYBSQBHGZMWFWXGMXLZPYYTGZYCCDXYZXYWGSYJYZNBHPZJSQSYXSXRTFYZGRHZTXSZZTHCBFCLSYXZLZQMZLMPLMXZJXSFLBYZMYQHXJSXRXSQZZZSSLYFRCZJRCRXHHZXQYDYHXSJJHZCXZBTYNSYSXJBQLPXZQPYMLXZKYXLXCJLCYSXXZZLXDLLLJJYHZXGYJWKJRWYHCPSGNRZLFZWFZZNSXGXFLZSXZZZBFCSYJDBRJKRDHHGXJLJJTGXJXXSTJTJXLYXQFCSGSWMSBCTLQZZWLZZKXJMLTMJYHSDDBXGZHDLBMYJFRZFSGCLYJBPMLYSMSXLSZJQQHJZFXGFQFQBPXZGYYQXGZTCQWYLTLGWSGWHRLFSFGZJMGMGBGTJFSYZZGZYZAFLSSPMLPFLCWBJZCLJJMZLPJJLYMQDMYYYFBGYGYZMLYZDXQYXRQQQHSYYYQXYLJTYXFSFSLLGNQCYHYCWFHCCCFXPYLYPLLZYXXXXXKQHHXSHJZCFZSCZJXCPZWHHHHHAPYLQALPQAFYHXDYLUKMZQGGGDDESRNNZLTZGCHYPPYSQJJHCLLJTOLNJPZLJLHYMHEYDYDSQYCDDHGZUNDZCLZYZLLZNTNYZGSLHSLPJJBDGWXPCDUTJCKLKCLWKLLCASSTKZZDNQNTTLYYZSSYSSZZRYLJQKCQDHHCRXRZYDGRGCWCGZQFFFPPJFZYNAKRGYWYQPQXXFKJTSZZXSWZDDFBBXTBGTZKZNPZZPZXZPJSZBMQHKCYXYLDKLJNYPKYGHGDZJXXEAHPNZKZTZCMXCXMMJXNKSZQNMNLWBWWXJKYHCPSTMCSQTZJYXTPCTPDTNNPGLLLZSJLSPBLPLQHDTNJNLYYRSZFFJFQWDPHZDWMRZCCLODAXNSSNYZRESTYJWJYJDBCFXNMWTTBYLWSTSZGYBLJPXGLBOCLHPCBJLTMXZLJYLZXCLTPNCLCKXTPZJSWCYXSFYSZDKNTLBYJCYJLLSTGQCBXRYZXBXKLYLHZLQZLNZCXWJZLJZJNCJHXMNZZGJZZXTZJXYCYYCXXJYYXJJXSSSJSTSSTTPPGQTCSXWZDCSYFPTFBFHFBBLZJCLZZDBXGCXLQPXKFZFLSYLTUWBMQJHSZBMDDBCYSCCLDXYCDDQLYJJWMQLLCSGLJJSYFPYYCCYLTJANTJJPWYCMMGQYYSXDXQMZHSZXPFTWWZQSWQRFKJLZJQQYFBRXJHHFWJJZYQAZMYFRHCYYBYQWLPEXCCZSTYRLTTDMQLYKMBBGMYYJPRKZNPBSXYXBHYZDJDNGHPMFSGMWFZMFQMMBCMZZCJJLCNUXYQLMLRYGQZCYXZLWJGCJCGGMCJNFYZZJHYCPRRCMTZQZXHFQGTJXCCJEAQCRJYHPLQLSZDJRBCQHQDYRHYLYXJSYMHZYDWLDFRYHBPYDTSSCNWBXGLPZMLZZTQSSCPJMXXYCSJYTYCGHYCJWYRXXLFEMWJNMKLLSWTXHYYYNCMMCWJDQDJZGLLJWJRKHPZGGFLCCSCZMCBLTBHBQJXQDSPDJZZGHGLFQYWBZYZJLTSTDHQHCTCBCHFLQMPWDSHYYTQWCNZZJTLBYMBPDYYYXSQKXWYYFLXXNCWCXYPMAELYKKJMZZZBRXYYQJFLJPFHHHYTZZXSGQQMHSPGDZQWBWPJHZJDYSCQWZKTXXSQLZYYMYSDZGRXCKKUJLWPYSYSCSYZLRMLQSYLJXBCXTLWDQZPCYCYKPPPNSXFYZJJRCEMHSZMSXLXGLRWGCSTLRSXBZGBZGZTCPLUJLSLYLYMTXMTZPALZXPXJTJWTCYYZLBLXBZLQMYLXPGHDSLSSDMXMBDZZSXWHAMLCZCPJMCNHJYSNSYGCHSKQMZZQDLLKABLWJXSFMOCDXJRRLYQZKJMYBYQLYHETFJZFRFKSRYXFJTWDSXXSYSQJYSLYXWJHSNLXYYXHBHAWHHJZXWMYLJCSSLKYDZTXBZSYFDXGXZJKHSXXYBSSXDPYNZWRPTQZCZENYGCXQFJYKJBZMLJCMQQXUOXSLYXXLYLLJDZBTYMHPFSTTQQWLHOKYBLZZALZXQLHZWRRQHLSTMYPYXJJXMQSJFNBXYXYJXXYQYLTHYLQYFMLKLJTMLLHSZWKZHLJMLHLJKLJSTLQXYLMBHHLNLZXQJHXCFXXLHYHJJGBYZZKBXSCQDJQDSUJZYYHZHHMGSXCSYMXFEBCQWWRBPYYJQTYZCYQYQQZYHMWFFHGZFRJFCDPXNTQYZPDYKHJLFRZXPPXZDBBGZQSTLGDGYLCQMLCHHMFYWLZYXKJLYPQHSYWMQQGQZMLZJNSQXJQSYJYCBEHSXFSZPXZWFLLBCYYJDYTDTHWZSFJMQQYJLMQXXLLDTTKHHYBFPWTYYSQQWNQWLGWDEBZWCMYGCULKJXTMXMYJSXHYBRWFYMWFRXYQMXYSZTZZTFYKMLDHQDXWYYNLCRYJBLPSXCXYWLSPRRJWXHQYPHTYDNXHHMMYWYTZCSQMTSSCCDALWZTCPQPYJLLQZYJSWXMZZMMYLMXCLMXCZMXMZSQTZPPQQBLPGXQZHFLJJHYTJSRXWZXSCCDLXTYJDCQJXSLQYCLZXLZZXMXQRJMHRHZJBHMFLJLMLCLQNLDXZLLLPYPSYJYSXCQQDCMQJZZXHNPNXZMEKMXHYKYQLXSXTXJYYHWDCWDZHQYYBGYBCYSCFGPSJNZDYZZJZXRZRQJJYMCANYRJTLDPPYZBSTJK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BI.first(this.children)},getLastChild:function(){return BI.last(this.children)},setLeft:function(a){this.left=a},getLeft:function(){return this.left},setRight:function(a){this.right=a},getRight:function(){return this.right},setParent:function(a){this.parent=a},getParent:function(){return this.parent},getChild:function(a){return this.children[a]},getChildIndex:function(a){return BI.findIndex(this.children,function(b,c){return c.get("id")===a})},removeChild:function(a){this.removeChildByIndex(this.getChildIndex(a))},removeChildByIndex:function(a){var b=this.getChild(a-1),c=this.getChild(a+1);null!=b&&b.setRight(c||null),null!=c&&c.setLeft(b||null),this.children.splice(a,1)},removeAllChilds:function(){this.children=[]},addChild:function(a,b){var c=null;c=BI.isUndefined(b)?this.children.length-1:b-1,a.setParent(this),c>=0&&(this.getChild(c)&&this.getChild(c).setRight(a),a.setLeft(this.getChild(c))),BI.isUndefined(b)?this.children.push(a):this.children.splice(b,0,a)},equals:function(a){return this===a||this.id===a.id},clear:function(){this.parent=null,this.left=null,this.right=null,this.children=[]}},BI.extend(BI.Tree,{transformToArrayFormat:function(a,b){if(!a)return[];var c=[];if(BI.isArray(a))for(var d=0,e=a.length;d=this.x&&a<=this.x+this.w&&b>=this.y&&b<=this.y+this.h)},getPosition:function(){var a=[];return a.push(this.x+this.w/2),a.push(this.y+this.h/2),a}},BI.BehaviorFactory={createBehavior:function(a,b){var c;switch(a){case"highlight":c=BI.HighlightBehavior;break;case"redmark":c=BI.RedMarkBehavior}return new c(b)}},BI.Behavior=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.Behavior.superclass._defaultConfig.apply(this,arguments),{rule:function(){return!0}})},_init:function(){BI.Behavior.superclass._init.apply(this,arguments)},doBehavior:function(){}}),BI.Layout=BI.inherit(BI.Widget,{props:function(){return{scrollable:null,scrollx:!1,scrolly:!1,items:[]}},render:function(){this._init4Margin(),this._init4Scroll()},_init4Margin:function(){this.options.top&&this.element.css("top",this.options.top),this.options.left&&this.element.css("left",this.options.left),this.options.bottom&&this.element.css("bottom",this.options.bottom),this.options.right&&this.element.css("right",this.options.right)},_init4Scroll:function(){switch(this.options.scrollable){case!0:this.element.css("overflow","auto");break;case!1:this.element.css("overflow","hidden")}this.options.scrollx&&this.element.css({"overflow-x":"auto","overflow-y":"hidden"}),this.options.scrolly&&this.element.css({"overflow-x":"hidden","overflow-y":"auto"})},appendFragment:function(a){this.element.append(a)},_mountChildren:function(){var a=this,b=BI.Widget._renderEngine.createFragment(),c=!1;BI.each(this._children,function(d,e){e.element!==a.element&&(b.appendChild(e.element[0]),c=!0)}),c===!0&&this.appendFragment(b)},_getChildName:function(a){return a+""},_addElement:function(a,b){var c,d=this;return this.hasWidget(this._getChildName(a))?c=this.getWidgetByName(this._getChildName(a)):(c=BI.createWidget(b),c.on(BI.Events.DESTROY,function(){BI.each(d._children,function(a,b){b===c&&(BI.remove(d._children,b),d.removeItemAt(0|a))})}),this.addWidget(this._getChildName(a),c)),c},_getOptions:function(a){return a instanceof BI.Widget&&(a=a.options),a=BI.stripEL(a),a instanceof BI.Widget&&(a=a.options),a},_compare:function(a,b){function c(a,b,e,f){if(a===b)return 0!==a||1/a===1/b;if(null==a||null==b)return a===b;var g=Object.prototype.toString.call(a);switch(g){case"[object RegExp]":case"[object String]":return""+a==""+b;case"[object Number]":return+a!==+a?+b!==+b:0===+a?1/+a===1/b:+a===+b;case"[object Date]":case"[object 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a>0?this._children[this._getChildName(a-1)].element.after(c.element):c.element.prependTo(this._getWrapper()),c._mount(),c}},removeItemAt:function(a){a=BI.isArray(a)?a:[a];for(var b=[],c=[],d={},e=0,f=this.options.items.length;ethis.options.items.length-1)return!1;var c=this._children[this._getChildName(a)];return c.shouldUpdate?c.shouldUpdate(this._getOptions(b))===!0:null},updateItemAt:function(a,b){if(!(a<0||a>this.options.items.length-1)){var c,d=this._children[this._getChildName(a)];if(c=d.update(this._getOptions(b)))return c;var e=this._children[this._getChildName(a)];delete this._children[this._getChildName(a)],this.options.items.splice(a,1);var f=this._addElement(a,b);this.options.items.splice(a,0,b),this._children[this._getChildName(a)]=f,a>0?this._children[this._getChildName(a-1)].element.after(f.element):f.element.prependTo(this._getWrapper()),e._destroy(),f._mount()}},addItems:function(a){var b=this,c=this.options,d=BI.Widget._renderEngine.createFragment(),e=[];BI.each(a,function(a,f){var g=b._addElement(c.items.length,f);b._children[b._getChildName(c.items.length)]=g,c.items.push(f),e.push(g),d.appendChild(g.element[0])}),this._isMounted&&(this._getWrapper().append(d),BI.each(e,function(a,b){b._mount()}))},prependItems:function(a){var b=this;a=a||[];for(var c=BI.Widget._renderEngine.createFragment(),d=[],e=a.length-1;e>=0;e--){this._addItemAt(0,a[e]);var f=this._addElement(0,a[e]);b._children[b._getChildName(0)]=f,this.options.items.unshift(a[e]),d.push(f),c.appendChild(f.element[0])}this._isMounted&&(this._getWrapper().prepend(c),BI.each(d,function(a,b){b._mount()}))},getValue:function(){var a,b=this,c=[];return BI.each(this.options.items,function(d){if(a=b._children[b._getChildName(d)]){var e=a.getValue();e=BI.isArray(e)?e:[e],c=c.concat(e)}}),c},setValue:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setValue(a)})},setText:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setText(a)})},patchItem:function(a,b,c){var d=this.shouldUpdateItem(c,b);if(d===!0||null===d&&!this._compare(a,b))return this.updateItemAt(c,b)},updateChildren:function(a,b){function c(a,b,c,d){return a=j._getOptions(a),b=j._getOptions(b),BI.isKey(a.key)?a.key===b.key:c>=0?c===d:void 0}function d(a,b){var c=j._getOptions(a),d=null==c.key?j._getChildName(b):c.key;return s[d]=j._addElement(d,a)}function e(a,b,c,e){for(;c<=e;++c){var f=d(b[c],c);g(f,a,!1,c)}}function f(a,b,c){for(;b<=c;++b){var d=j._getOptions(a[b]),e=null==d.key?j._getChildName(b):d.key;s[e]._destroy()}}function g(a,b,c,d){a=j._getOptions(a),b=b&&j._getOptions(b);var e=BI.isKey(a.key)?a.key:j._getChildName(d);if(b&&s[b.key]){var f,g=BI.isKey(b.key)?b.key:j._getChildName(d);f=c?s[g].element.next():s[g].element,f.length>0?f.before(s[e].element):j._getWrapper().append(s[e].element)}else j._getWrapper().append(s[e].element)}var h,i,j=this,k=0,l=0,m=a.length-1,n=a[0],o=a[m],p=b.length-1,q=b[0],r=b[p],s={};for(BI.each(a,function(a,b){b=j._getOptions(b);var c=null==b.key?a:b.key;BI.isKey(c)&&(s[c]=j._children[j._getChildName(a)])});k<=m&&l<=p;)if(BI.isNull(n))n=a[++k];else if(BI.isNull(o))o=a[--m];else if(c(n,q,k,l))i=this.patchItem(n,q,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],n=a[++k],q=b[++l];else if(c(o,r,m,p))i=this.patchItem(o,r,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],o=a[--m],r=b[--p];else if(c(n,r))i=this.patchItem(n,r,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],g(n,o,!0),n=a[++k],r=b[--p];else if(c(o,q))i=this.patchItem(o,q,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],g(o,n),o=a[--m],q=b[++l];else{var t=d(q);g(t,n),q=b[++l]}return k>m?(h=BI.isNull(b[p+1])?null:b[p+1],e(h,b,l,p)):l>p&&f(a,k,m),this._children={},BI.each(b,function(a,b){var c=j._getOptions(b),d=null==c.key?j._getChildName(a):c.key;s[d]._mount(),j._children[j._getChildName(a)]=s[d]}),i},update:function(a){var b=this.options,c=a.items||[],d=this.updateChildren(b.items,c);return this.options.items=c,d},stroke:function(a){var b=this;BI.each(a,function(a,c){c&&b._addElement(a,c)})},removeWidget:function(a){var b;BI.isWidget(a)?BI.each(this._children,function(c,d){d===a&&(b=c)}):b=a,b&&this._removeItemAt(0|b)},empty:function(){BI.Layout.superclass.empty.apply(this,arguments),this.options.items=[]},destroy:function(){BI.Layout.superclass.destroy.apply(this,arguments),this.options.items=[]},populate:function(a){this.options;return a=a||[],this._isMounted?void 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BI.extend(BI.Action.superclass._defaultConfig.apply(this,arguments),{src:null,tar:null})},_init:function(){BI.Action.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){}, actionBack:function(a,b,c){}}),BI.ActionFactory={createAction:function(a,b){var c;switch(a){case"show":c=BI.ShowAction}return new c(b)}},BI.ShowAction=BI.inherit(BI.Action,{_defaultConfig:function(){return BI.extend(BI.ShowAction.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.ShowAction.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){b=b||this.options.tar,b.setVisible(!0),c&&c()},actionBack:function(a,b,c){a=a||this.options.tar,a.setVisible(!1),c&&c()}}),function(){function isEmpty(a){var b=""===a||null===a||void 0===a;return b}function isInvalidDate(a){return"Invalid Date"==a||"NaN"==a}function _eFormat(a,b){function c(a,b){var c=a<0?(a*=-1,"-"):"",h="",i=a>0&&a<1?"floor":"ceil",j=Math[i](Math.log(a)/Math.log(10));if(!isFinite(j))return 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self?self:this,_global.BI||(_global.BI={}),BI.cjkEncode=function(a){if("string"!=typeof a)return a;for(var b="",c=0;c=128||91===d||93===d?"["+d.toString(16)+"]":a.charAt(c)}return b},BI.cjkDecode=function(text){if(null==text)return"";if(!isNaN(text)||text.indexOf("[")==-1)return text;for(var newText="",i=0;ii+1){var subText=text.substring(i+1,rightIdx);subText.length>0&&(ch=String.fromCharCode(eval("0x"+subText))),i=rightIdx}}newText+=ch}return newText},BI.htmlEncode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/\"/g,""").replace(//g,">").replace(/\s/g," ")},BI.htmlDecode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/"/g,'"').replace(/</g,"<").replace(/>/g,">").replace(/ /g," ")},BI.cjkEncodeDO=function(a){if(BI.isPlainObject(a)){var b={};return _.each(a,function(a,c){"string"!=typeof a&&(a=BI.jsonEncode(a)),c=BI.cjkEncode(c),b[c]=BI.cjkEncode(a)}),b}return a},BI.jsonEncode=function(a){var b=!!{}.hasOwnProperty,c={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},d=function(a){return/["\\\x00-\x1f]/.test(a)?'"'+a.replace(/([\x00-\x1f\\"])/g,function(a,b){var d=c[b];return d?d:(d=b.charCodeAt(),"\\u00"+Math.floor(d/16).toString(16)+(d%16).toString(16))})+'"':'"'+a+'"'},e=function(a){var b,c,d,e=["["],f=a.length;for(c=0;c2?BI.Date._MN[b.getMonth()]:d<2?b.getMonth()+1:BI.leftPad(b.getMonth()+1+"",2,"0");break;case"d":c=d>1?BI.leftPad(b.getDate()+"",2,"0"):b.getDate();break;case"h":var f=b.getHours()%12;0===f&&(f=12),c=d>1?BI.leftPad(f+"",2,"0"):f;break;case"H":c=d>1?BI.leftPad(b.getHours()+"",2,"0"):b.getHours();break;case"m":c=d>1?BI.leftPad(b.getMinutes()+"",2,"0"):b.getMinutes();break;case"s":c=d>1?BI.leftPad(b.getSeconds()+"",2,"0"):b.getSeconds();break;case"a":c=b.getHours()<12?"am":"pm";break;case"z":c=BI.getTimezone(b);break;default:c=a.str}return c}if(!a)return"";var d=b.length,e="";if(d>0){for(var f=b.charAt(0),g=0,h=f,i=1;iBI.Widget._renderEngine.createElement("body").outerWidth()&&(l-=k.element.outerWidth()+15),m+k.element.outerHeight()>BI.Widget._renderEngine.createElement("body").outerHeight()?(m-=k.element.outerHeight()+15,!f.belowMouse&&(m=Math.min(m,h.top-k.element.outerHeight()-5))):!f.belowMouse&&(m=Math.max(m,j)),k.element.css({left:l<0?0:l+"px",top:m<0?0:m+"px"}),k.element.hover(function(){g.remove(b),e.element.trigger("mouseleave.title"+e.getName())}),this},add:function(a,b){return this.has(a)?this:(this.set(a,b),this)},get:function(a){return this.tooltipsManager[a]},set:function(a,b){this.tooltipsManager[a]=b},has:function(a){return null!=this.tooltipsManager[a]},remove:function(a){return this.has(a)?(this.tooltipsManager[a].destroy(),delete this.tooltipsManager[a],this):this}}),_.extend(BI,{Events:{KEYDOWN:"_KEYDOWN",BACKSPACE:"_BACKSPACE",SPACE:"_SPACE",ENTER:"_ENTER",CONFIRM:"_CONFIRM",ERROR:"_ERROR",PAUSE:"_PAUSE",DESTROY:"_DESTROY",UNMOUNT:"_UNMOUNT",CLEAR:"_CLEAR",ADD:"_ADD",EDITING:"_EDITING",EMPTY:"_EMPTY",VIEW:"_VIEW",RESIZE:"_RESIZE",BEFOREEDIT:"_BEFOREEDIT",AFTEREDIT:"_AFTEREDIT",STARTEDIT:"_STARTEDIT",STOPEDIT:"_STOPEDIT",CHANGE:"_CHANGE",EXPAND:"_EXPAND",COLLAPSE:"_COLLAPSE",CALLBACK:"_CALLBACK",CLICK:"_CLICK",STATECHANGE:"_STATECHANGE",BEFORESTATECHANGE:"_BEFORESTATECHANGE",INIT:"_INIT",AFTERINIT:"_AFTERINIT",SCROLL:"_SCROLL",STARTLOAD:"_STARTLOAD",AFTERLOAD:"_AFTERLOAD",BS:"beforesubmit",AS:"aftersubmit",SC:"submitcomplete",SF:"submitfailure",SS:"submitsuccess",BVW:"beforeverifywrite",AVW:"afterverifywrite",AV:"afterverify",BW:"beforewrite",AW:"afterwrite",WS:"writesuccess",WF:"writefailure",BA:"beforeappend",AA:"afterappend",BD:"beforedelete",AD:"beforedelete",UC:"unloadcheck",BTOPDF:"beforetopdf",ATOPDF:"aftertopdf",BTOEXCEL:"beforetoexcel",ATOEXCEL:"aftertoexcel",BTOWORD:"beforetoword",ATOWORD:"aftertoword",BTOIMAGE:"beforetoimage",ATOIMAGE:"aftertoimage",BTOHTML:"beforetohtml",ATOHTML:"aftertohtml",BIMEXCEL:"beforeimportexcel",AIMEXCEL:"afterimportexcel",BPDFPRINT:"beforepdfprint",APDFPRINT:"afterpdfprint",BFLASHPRINT:"beforeflashprint",AFLASHPRINT:"afterflashprint",BAPPLETPRINT:"beforeappletprint",AAPPLETPRINT:"afterappletprint",BSEVERPRINT:"beforeserverprint",ASERVERPRINT:"afterserverprint",BEMAIL:"beforeemail",AEMAIL:"afteremail"}}),_.extend(BI,{pushArray:function(a,b){for(var c=0;ce&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+3*parseInt(b)),c},getQuarterStartMonth:function(a){var b=0,c=a.getMonth();return c<3&&(b=0),28&&(b=9),b},getQuarterStartDate:function(a){return BI.getDate(a.getFullYear(),BI.getQuarterStartMonth(a),1)},getQuarterEndDate:function(a){var b=BI.getQuarterStartMonth(a)+2;return BI.getDate(a.getFullYear(),b,BI.getMonthDays(a,b))},getOffsetMonth:function(a,b){var c=BI.getDate(BI.getTime(a.getFullYear(),a.getMonth(),a.getDate(),a.getHours(),a.getMinutes(),a.getSeconds())),d=c.getDate(),e=BI.getMonthDays(BI.getDate(c.getFullYear(),c.getMonth()+parseInt(b),1));return d>e&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+parseInt(b)),c},getWeekStartDate:function(a){var b=a.getDay(),c=BI.StartOfWeek%7;return BI.getOffsetDate(a,BI.Date._OFFSET[b=12,m=l?k-12:k,n=BI.getDayOfYear(a);0==m&&(m=12);var 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g={},h=[];BI.action=function(a,b){return BI.isFunction(a)?(h.push(a),function(){BI.remove(h,function(a){return h.indexOf(b)===a})}):(g[a]||(g[a]=[]),g[a].push(b),function(){BI.remove(g[a],function(c){return g[a].indexOf(b)===c}),0===g[a].length&&delete g[a]})};var i={};BI.point=function(a,b,c,d){i[a]||(i[a]={}),i[a][b]||(i[a][b]={}),i[a][b][d?"after":"before"]||(i[a][b][d?"after":"before"]=[]),i[a][b][d?"after":"before"].push(c)},BI.Modules={getModule:function(b){return a[b]?a[b]:(_global.console&&console.error("module:["+b+"] does not exists"),!1)}},BI.Constants={getConstant:function(a){return b[a]}};var j=function(a,b){if(i[b])for(var c in i[b]){var d=i[b][c].before;d&&BI.aspect.before(a,c,function(b){return function(){for(var c=0,d=b.length;c1?d.toString():d[0]:d,BI.isNull(d))throw new Error("value cannot be null");var f=b.cardNameCreator(d);if(!b.cardLayout.isCardExisted(f)){var g=b.cardCreator(f);b.cardLayout.addCardByName(f,g),b.afterCardCreated(f)}b.cardLayout.showCardByName(f),BI.nextTick(function(){b.afterCardShow(f),a.fireEvent(BI.ShowListener.EVENT_CHANGE,f)})}})}}),BI.ShowListener.EVENT_CHANGE="ShowListener.EVENT_CHANGE",BI.StyleLoaderManager=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.StyleLoaderManager.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.StyleLoaderManager.superclass._init.apply(this,arguments),this.stylesManager={}},loadStyle:function(a,b){if(_global.document){var c=document,d=c.createElement("style");return c.getElementsByTagName("head")[0].appendChild(d),d.setAttribute("type","text/css"),d.styleSheet?d.styleSheet.cssText=b:d.appendChild(document.createTextNode(b)),this.stylesManager[a]=d,this}},get:function(a){return this.stylesManager[a]},has:function(a){return null!=this.stylesManager[a]},removeStyle:function(a){return this.has(a)?(this.stylesManager[a].parentNode.removeChild(this.stylesManager[a]),delete this.stylesManager[a],this):this}}),BI.Logic=BI.inherit(BI.OB,{createLogic:function(){return this.options||{}}}),BI.LogicFactory={Type:{Vertical:"vertical",Horizontal:"horizontal",Table:"table",HorizontalFill:"horizontal_fill"},createLogic:function(a,b){var c;switch(a){case BI.LogicFactory.Type.Vertical:c=BI.VerticalLayoutLogic;break;case BI.LogicFactory.Type.Horizontal:c=BI.HorizontalLayoutLogic;break;case BI.LogicFactory.Type.Table:c=BI.TableLayoutLogic;break;case BI.LogicFactory.Type.HorizontalFill:c=BI.HorizontalFillLayoutLogic;break;default:c=BI.Logic}return new c(b).createLogic()},createLogicTypeByDirection:function(a){switch(a){case BI.Direction.Top:case BI.Direction.Bottom:case BI.Direction.Custom:return BI.LogicFactory.Type.Vertical;case BI.Direction.Left:case BI.Direction.Right:return BI.LogicFactory.Type.Horizontal}},createLogicItemsByDirection:function(a){var b,c=Array.prototype.slice.call(arguments,1);switch(c=BI.map(c,function(a,b){return BI.isWidget(b)?{el:b,width:b.options.width,height:b.options.height}:b}),a){case BI.Direction.Bottom:b=BI.LogicFactory.Type.Vertical,c.reverse();break;case BI.Direction.Right:b=BI.LogicFactory.Type.Horizontal,c.reverse();break;case BI.Direction.Custom:c=c.slice(1)}return c}},BI.VerticalLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.VerticalLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options;return 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BI.extend(BI.TableLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,columns:0,rows:0,columnSize:[],rowSize:[],hgap:0,vgap:0,items:[]})},createLogic:function(){var a,b=this.options;return a=b.dynamic?"bi.table":"bi.window",{type:a,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,columns:b.columns,rows:b.rows,columnSize:b.columnSize,rowSize:b.rowSize,hgap:b.hgap,vgap:b.vgap,items:b.items}},_init:function(){BI.TableLayoutLogic.superclass._init.apply(this,arguments)}}),BI.HorizontalFillLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.HorizontalFillLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options,c=[];return BI.each(b.items,function(a,b){c.push(b.width||0)}),a=b.dynamic?"bi.horizontal_adapt":"bi.htape",{type:a,columnSize:c,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,items:b.items}},_init:function(){BI.HorizontalFillLayoutLogic.superclass._init.apply(this,arguments)}}),_.extend(BI,{ajax:function(a){a||(a={});var b=a.async;a.data=BI.cjkEncodeDO(a.data||{}),$.ajax({url:a.url,type:"POST",data:a.data,async:b,error:a.error,complete:function(b,c){BI.isFunction(a.complete)&&a.complete(BI.jsonDecode(b.responseText),c)}})}}),BI.prepares.push(function(){var a,b=function(){return null==a&&(a=!(!BI.isSupportCss3||!BI.isSupportCss3("flex"))),a};BI.Plugin.registerWidget("bi.horizontal",function(a){var c=BI.isIE(),d=b(),e=c&&BI.getIEVersion()<8;return a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Left?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Top&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):c?a:d?BI.extend(a,{type:"bi.flex_horizontal"}):BI.extend(a,{type:"bi.table_adapt"})}),BI.Plugin.registerWidget("bi.center_adapt",function(a){var c=BI.isIE(),d=b(),e=a.items&&a.items.length<=1;return!c&&d&&e?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend(a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):e?BI.extend(a,{type:"bi.inline_center_adapt"}):a}),BI.Plugin.registerWidget("bi.vertical_adapt",function(a){var c=BI.isIE(),d=b();return!c&&d?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_vertical_center"}):BI.extend(a,{type:"bi.flex_vertical_center"}):BI.extend(a,{type:"bi.inline_vertical_adapt"})}),BI.Plugin.registerWidget("bi.horizontal_adapt",function(a){return a.items&&a.items.length<=1?BI.extend(a,{type:"bi.horizontal_auto"}):a}),BI.Plugin.registerWidget("bi.float_center_adapt",function(a){return!BI.isIE()&&b()?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):BI.extend(a,{type:"bi.inline_center_adapt"})})}),!function(){var a=_global.document&&_global.document.attachEvent,b=!1;if(_global.document&&!a){var c=function(){var a=_global.requestAnimationFrame||_global.mozRequestAnimationFrame||_global.webkitRequestAnimationFrame||function(a){return _global.setTimeout(a,20)};return function(b){return a(b)}}(),d=function(){var 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BI.DOM.rgb2hex(BI.DOM.json2rgb({r:this.R.getValue(),g:this.G.getValue(),b:this.B.getValue()}))}}),BI.SimpleColorPickerEditor.EVENT_CHANGE="SimpleColorPickerEditor.EVENT_CHANGE",BI.shortcut("bi.simple_color_picker_editor",BI.SimpleColorPickerEditor),BI.Farbtastic=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Farbtastic.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-farbtastic",width:195,height:195})},_init:function(){BI.Farbtastic.superclass._init.apply(this,arguments)},mounted:function(){var a=this;this.farbtastic=$.farbtastic(this.element,function(b){a.fireEvent(BI.Farbtastic.EVENT_CHANGE,a.getValue(),a)})},setValue:function(a){this.farbtastic.setColor(a)},getValue:function(){return this.farbtastic.color}}),BI.Farbtastic.EVENT_CHANGE="Farbtastic.EVENT_CHANGE",BI.shortcut("bi.farbtastic",BI.Farbtastic),jQuery.fn.farbtastic=function(a){return $.farbtastic(this,a),this},jQuery.farbtastic=function(a,b){var a=$(a).get(0);return a.farbtastic||(a.farbtastic=new jQuery._farbtastic(a,b))},jQuery._farbtastic=function(a,b){var c=this;$(a).html('
');var d=$(".farbtastic",a);c.wheel=$(".wheel",a).get(0),c.radius=84,c.square=100,c.width=194,navigator.appVersion.match(/MSIE [0-6]\./)&&$("*",d).each(function(){if("none"!=this.currentStyle.backgroundImage){var a=this.currentStyle.backgroundImage;a=this.currentStyle.backgroundImage.substring(5,a.length-2),$(this).css({backgroundImage:"none",filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='"+a+"')"})}}),c.linkTo=function(a){return"object"==typeof c.callback&&$(c.callback).unbind("keyup",c.updateValue),c.color=null,"function"==typeof a?c.callback=a:"object"!=typeof a&&"string"!=typeof a||(c.callback=$(a),c.callback.bind("keyup",c.updateValue),c.callback.get(0).value&&c.setColor(c.callback.get(0).value)),this},c.updateValue=function(a){this.value&&this.value!=c.color&&c.setColor(this.value)},c.setColor=function(a){var b=c.unpack(a);return c.color!=a&&b&&(c.color=a,c.rgb=b,c.hsl=c.RGBToHSL(c.rgb),c.updateDisplay()),this},c.setHSL=function(a){return c.hsl=a,c.rgb=c.HSLToRGB(a),c.color=c.pack(c.rgb),c.updateDisplay(),this},c.widgetCoords=function(a){var b,d,e=a.target||a.srcElement,f=c.wheel;if("undefined"!=typeof a.offsetX){for(var g={x:a.offsetX,y:a.offsetY},h=e;h;)h.mouseX=g.x,h.mouseY=g.y,g.x+=h.offsetLeft,g.y+=h.offsetTop,h=h.offsetParent;for(var h=f,i={x:0,y:0};h;){if("undefined"!=typeof h.mouseX){b=h.mouseX-i.x,d=h.mouseY-i.y;break}i.x+=h.offsetLeft,i.y+=h.offsetTop,h=h.offsetParent}for(h=e;h;)h.mouseX=void 0,h.mouseY=void 0,h=h.offsetParent}else{var g=c.absolutePosition(f);b=(a.pageX||0*(a.clientX+$("html").get(0).scrollLeft))-g.x,d=(a.pageY||0*(a.clientY+$("html").get(0).scrollTop))-g.y}return{x:b-c.width/2,y:d-c.width/2}},c.click=function(a){var b=c.widgetCoords(a);return c.circleDrag=2*Math.max(Math.abs(b.x),Math.abs(b.y))>c.square,c.mousemove(a),!1},c.mousemove=function(a){var b=c.widgetCoords(a);if(c.circleDrag){var d=Math.atan2(b.x,-b.y)/6.28;d<0&&(d+=1),c.setHSL([d,c.hsl[1],c.hsl[2]])}else{var e=Math.max(0,Math.min(1,-(b.x/c.square)+.5)),f=Math.max(0,Math.min(1,-(b.y/c.square)+.5));c.setHSL([c.hsl[0],e,f])}return!1},c.updateDisplay=function(){var a=6.28*c.hsl[0];$(".h-marker",d).css({left:Math.round(Math.sin(a)*c.radius+c.width/2)+"px",top:Math.round(-Math.cos(a)*c.radius+c.width/2)+"px"}),$(".sl-marker",d).css({left:Math.round(c.square*(.5-c.hsl[1])+c.width/2)+"px",top:Math.round(c.square*(.5-c.hsl[2])+c.width/2)+"px"}),$(".color",d).css("backgroundColor",c.pack(c.HSLToRGB([c.hsl[0],1,.5]))),"object"==typeof c.callback?($(c.callback).css({backgroundColor:c.color,color:c.hsl[2]>.5?"#000":"#fff"}),$(c.callback).each(function(){this.value&&this.value!=c.color&&(this.value=c.color)})):"function"==typeof c.callback&&c.callback.call(c,c.color)},c.absolutePosition=function(a){var b={x:a.offsetLeft,y:a.offsetTop};if(a.offsetParent){var d=c.absolutePosition(a.offsetParent);b.x+=d.x,b.y+=d.y}return b},c.pack=function(a){var b=Math.round(255*a[0]),c=Math.round(255*a[1]),d=Math.round(255*a[2]);return"#"+(b<16?"0":"")+b.toString(16)+(c<16?"0":"")+c.toString(16)+(d<16?"0":"")+d.toString(16)},c.unpack=function(a){return 7==a.length?[parseInt("0x"+a.substring(1,3))/255,parseInt("0x"+a.substring(3,5))/255,parseInt("0x"+a.substring(5,7))/255]:4==a.length?[parseInt("0x"+a.substring(1,2))/15,parseInt("0x"+a.substring(2,3))/15,parseInt("0x"+a.substring(3,4))/15]:void 0},c.HSLToRGB=function(a){var b,c,d=a[0],e=a[1],f=a[2];return c=f<=.5?f*(e+1):f+e-f*e,b=2*f-c,[this.hueToRGB(b,c,d+.33333),this.hueToRGB(b,c,d),this.hueToRGB(b,c,d-.33333)]},c.hueToRGB=function(a,b,c){return c=c<0?c+1:c>1?c-1:c,6*c<1?a+(b-a)*c*6:2*c<1?b:3*c<2?a+(b-a)*(.66666-c)*6:a},c.RGBToHSL=function(a){var b,c,d,e,f,g,h=a[0],i=a[1],j=a[2];return b=Math.min(h,Math.min(i,j)),c=Math.max(h,Math.max(i,j)),d=c-b,g=(b+c)/2,f=0,g>0&&g<1&&(f=d/(g<.5?2*g:2-2*g)),e=0,d>0&&(c==h&&c!=i&&(e+=(i-j)/d),c==i&&c!=j&&(e+=2+(j-h)/d),c==j&&c!=h&&(e+=4+(h-i)/d),e/=6),[e,f,g]},$("*",d).click(c.click),c.setColor("#000000"),b&&c.linkTo(b)},BI.BubbleCombo=BI.inherit(BI.Widget,{_const:{TRIANGLE_LENGTH:6},_defaultConfig:function(){return BI.extend(BI.BubbleCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-bubble-combo",trigger:"click",toggle:!0,direction:"bottom",isDefaultInit:!1,destroyWhenHide:!1,isNeedAdjustHeight:!0,isNeedAdjustWidth:!0,stopPropagation:!1,adjustLength:0,hideChecker:BI.emptyFn,offsetStyle:"left",el:{},popup:{}})},_init:function(){BI.BubbleCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.combo=BI.createWidget({type:"bi.combo",element:this,trigger:b.trigger,toggle:b.toggle,container:b.container,direction:b.direction,isDefaultInit:b.isDefaultInit,destroyWhenHide:b.destroyWhenHide,isNeedAdjustHeight:b.isNeedAdjustHeight,isNeedAdjustWidth:b.isNeedAdjustWidth,adjustLength:this._getAdjustLength(),stopPropagation:b.stopPropagation,adjustXOffset:0,adjustYOffset:0,hideChecker:b.hideChecker,offsetStyle:b.offsetStyle,el:b.el,popup:BI.extend({type:"bi.bubble_popup_view"},b.popup)}),this.combo.on(BI.Combo.EVENT_TRIGGER_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_TRIGGER_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_EXPAND,function(){a.fireEvent(BI.BubbleCombo.EVENT_EXPAND,arguments)}),this.combo.on(BI.Combo.EVENT_COLLAPSE,function(){a.fireEvent(BI.BubbleCombo.EVENT_COLLAPSE,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_INIT,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_INIT,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_POPUPVIEW,function(){a._showTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_AFTER_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW,function(){a._hideTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_HIDEVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_HIDEVIEW,arguments)})},_getAdjustLength:function(){return this._const.TRIANGLE_LENGTH+this.options.adjustLength},_createTriangle:function(a){var b={},c={},d=this.options.adjustLength,e=this.element.offset(),f=e.left,g=e.left+this.element.outerWidth(),h=e.top,i=e.top+this.element.outerHeight();switch(a){case"left":b={top:h,height:this.element.outerHeight(),left:f-d-this._const.TRIANGLE_LENGTH},c={width:this._const.TRIANGLE_LENGTH};break;case"right":b={top:h,height:this.element.outerHeight(),left:g+d},c={width:this._const.TRIANGLE_LENGTH};break;case"top":b={left:f,width:this.element.outerWidth(),top:h-d-this._const.TRIANGLE_LENGTH},c={height:this._const.TRIANGLE_LENGTH};break;case"bottom":b={left:f,width:this.element.outerWidth(),top:i+d},c={height:this._const.TRIANGLE_LENGTH}}this.triangle&&this.triangle.destroy(),this.triangle=BI.createWidget(c,{type:"bi.center_adapt",cls:"button-combo-triangle-wrapper",items:[{type:"bi.layout",cls:"bubble-combo-triangle-"+a+" bi-high-light-border"}]}),b.el=this.triangle,BI.createWidget({type:"bi.absolute",element:this,items:[b]})},_createLeftTriangle:function(){this._createTriangle("left")},_createRightTriangle:function(){this._createTriangle("right")},_createTopTriangle:function(){this._createTriangle("top")},_createBottomTriangle:function(){this._createTriangle("bottom")},_showTriangle:function(){var a=this.combo.getPopupPosition();switch(a.dir){case"left,top":case"left,bottom":this._createLeftTriangle();break;case"right,top":case"right,bottom":this._createRightTriangle();break;case"top,left":case"top,right":this._createTopTriangle();break;case"bottom,left":case"bottom,right":this._createBottomTriangle()}},_hideTriangle:function(){this.triangle&&this.triangle.destroy(),this.triangle=null},hideView:function(){this._hideTriangle(),this.combo&&this.combo.hideView()},showView:function(){this.combo&&this.combo.showView()},isViewVisible:function(){return this.combo.isViewVisible()}}),BI.BubbleCombo.EVENT_TRIGGER_CHANGE="EVENT_TRIGGER_CHANGE",BI.BubbleCombo.EVENT_CHANGE="EVENT_CHANGE",BI.BubbleCombo.EVENT_EXPAND="EVENT_EXPAND",BI.BubbleCombo.EVENT_COLLAPSE="EVENT_COLLAPSE",BI.BubbleCombo.EVENT_AFTER_INIT="EVENT_AFTER_INIT",BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.BubbleCombo.EVENT_AFTER_POPUPVIEW="EVENT_AFTER_POPUPVIEW",BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW="EVENT_BEFORE_HIDEVIEW",BI.BubbleCombo.EVENT_AFTER_HIDEVIEW="EVENT_AFTER_HIDEVIEW",BI.shortcut("bi.bubble_combo",BI.BubbleCombo),BI.BubblePopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.BubblePopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:a.baseCls+" bi-bubble-popup-view",minWidth:220,maxWidth:300,minHeight:90})},_init:function(){BI.BubblePopupView.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.bubble_popup_view",BI.BubblePopupView),BI.BubblePopupBarView=BI.inherit(BI.BubblePopupView,{_defaultConfig:function(){return BI.extend(BI.BubblePopupBarView.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-bubble-bar-popup-view",buttons:[{value:BI.i18nText("BI-Basic_Cancel"),ghost:!0},{value:BI.i18nText(BI.i18nText("BI-Basic_Sure"))}]})},_init:function(){BI.BubblePopupBarView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this,c=[];return BI.each(a.buttons,function(a,d){BI.isWidget(d)?c.push(d):c.push(BI.extend({type:"bi.button",height:24,handler:function(a){b.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,a)}},d))}),BI.createWidget({type:"bi.center",height:44,rgap:15,items:[{type:"bi.right_vertical_adapt",lgap:10,items:c}]})},_createView:function(){var a=this.options,b=BI.createWidget({type:"bi.button_group",items:[a.el],layouts:[{type:"bi.vertical",hgap:15,tgap:10}]});return b.element.css("min-height",a.minHeight-44),b}}),BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.bubble_bar_popup_view",BI.BubblePopupBarView),BI.TextBubblePopupBarView=BI.inherit(BI.Widget,{props:function(){return{baseCls:"bi-text-bubble-bar-popup-view",text:"",buttons:[{level:"ignore",value:!1,text:BI.i18nText("BI-Basic_Cancel")},{value:!0,text:BI.i18nText("BI-Basic_Sure")}]}},render:function(){var a=this,b=this.options,c=BI.map(b.buttons,function(b,c){return BI.isWidget(c)?c:BI.extend({type:"bi.button",height:24,handler:function(b){a.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,b)}},c)});return{type:"bi.bubble_bar_popup_view",ref:function(){a.popup=this},el:{type:"bi.label",text:b.text,whiteSpace:"normal",textAlign:"left",ref:function(){a.text=this}},buttons:c}},populate:function(a){this.text.setText(a||this.options.text)}}),BI.TextBubblePopupBarView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_bubble_bar_popup_view",BI.TextBubblePopupBarView),BI.EditorIconCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.EditorIconCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseClass:"bi-check-editor-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:""})},_init:function(){BI.EditorIconCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.editor_trigger",items:b.items,height:b.height,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText,value:b.value}),this.trigger.on(BI.EditorTrigger.EVENT_CHANGE,function(){a.popup.setValue(this.getValue()),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.editorIconCheckCombo.hideView(),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editorIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.editorIconCheckCombo.setValue(a)},getValue:function(){return this.trigger.getValue()},populate:function(a){this.options.items=a,this.editorIconCheckCombo.populate(a)}}),BI.EditorIconCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.editor_icon_check_combo",BI.EditorIconCheckCombo),BI.IconCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-combo",width:24,height:24,el:{},popup:{},minWidth:100,maxWidth:"auto",maxHeight:300,direction:"bottom",adjustLength:3,adjustXOffset:0,adjustYOffset:0,offsetStyle:"left",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.icon_combo_trigger",iconCls:b.iconCls,title:b.title,items:b.items,width:b.width,height:b.height,iconWidth:b.iconWidth,iconHeight:b.iconHeight,value:b.value}),this.popup=BI.createWidget(b.popup,{type:"bi.icon_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.IconComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.iconCombo.hideView(),a.fireEvent(BI.IconCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.iconCombo=BI.createWidget({type:"bi.combo",element:this,direction:b.direction,trigger:b.trigger,container:b.container,adjustLength:b.adjustLength,adjustXOffset:b.adjustXOffset,adjustYOffset:b.adjustYOffset,offsetStyle:b.offsetStyle,el:this.trigger,popup:{el:this.popup,maxWidth:b.maxWidth,maxHeight:b.maxHeight,minWidth:b.minWidth}})},showView:function(){this.iconCombo.showView()},hideView:function(){this.iconCombo.hideView()},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.iconCombo.populate(a)}}),BI.IconCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo",BI.IconCombo),BI.IconComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi.icon-combo-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_popup",BI.IconComboPopup),BI.IconComboTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconComboTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-combo-trigger",el:{},items:[],iconCls:"",width:24,height:24,isShowDown:!0,value:""})},_init:function(){BI.IconComboTrigger.superclass._init.apply(this,arguments);var a=this.options,b="";BI.isKey(a.value)&&(b=this._digest(a.value,a.items)),this.button=BI.createWidget(a.el,{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b,disableSelected:!0,width:a.isShowDown?a.width-12:a.width,height:a.height,iconWidth:a.iconWidth,iconHeight:a.iconHeight,selected:BI.isNotEmptyString(b)}),this.down=BI.createWidget({type:"bi.icon_button",disableSelected:!0,cls:"icon-combo-down-icon trigger-triangle-font font-size-12",width:12,height:8,selected:BI.isNotEmptyString(b)}),this.down.setVisible(a.isShowDown),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.button,left:0,right:0,top:0,bottom:0},{el:this.down,right:3,bottom:0}]})},_digest:function(a,b){var c="";return a=BI.isArray(a)?a[0]:a,BI.any(b,function(b,d){if(a===d.value)return c=d.iconCls,!0}),c},populate:function(a){var b=this.options;this.options.items=a||[],this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1)},setValue:function(a){BI.IconComboTrigger.superclass.setValue.apply(this,arguments);var b=this.options,c=this._digest(a,this.options.items);a=BI.isArray(a)?a[0]:a,BI.isNotEmptyString(c)?(this.button.setIcon(c),this.button.setSelected(!0),this.down.setSelected(!0)):(this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1))}}),BI.IconComboTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_trigger",BI.IconComboTrigger),BI.IconTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconTextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-value-combo",height:24,iconHeight:null,iconWidth:null,value:"",attributes:{tabIndex:0}})},_init:function(){BI.IconTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_icon_text_trigger",cls:"icon-text-value-trigger",items:b.items,height:b.height,text:b.text,iconCls:b.iconCls,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth,title:b.title,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.icon_text_value_combo_popup",items:b.items,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth}),this.popup.on(BI.IconTextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.IconTextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this.setValue(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.options.tipType="warning",this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.options.tipType="success",this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){ var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.IconTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo",BI.IconTextValueCombo),BI.IconTextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconTextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-icon-popup"})},_init:function(){BI.IconTextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconTextValueComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconTextValueComboPopup.superclass.populate.apply(this,arguments);var b=this.options;a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24,iconWrapperWidth:b.iconWrapperWidth,iconHeight:b.iconHeight,iconWidth:b.iconWidth}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo_popup",BI.IconTextValueComboPopup),BI.SearchTextValueCombo=BI.inherit(BI.Widget,{props:{baseCls:"bi-search-text-value-combo",height:24,text:"",items:[],tipType:"",warningTitle:"",attributes:{tabIndex:0}},render:function(){var a=this,b=this.options;return{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,adjustLength:2,toggle:!1,ref:function(){a.combo=this},el:{type:"bi.search_text_value_trigger",cls:"search-text-value-trigger",ref:function(){a.trigger=this},items:b.items,height:b.height-2,text:b.text,value:b.value,tipType:b.tipType,warningTitle:b.warningTitle,title:b.title,listeners:[{eventName:BI.SearchTextValueTrigger.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},popup:{el:{type:"bi.text_value_combo_popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:b.value,items:b.items,ref:function(){a.popup=this,a.trigger.getSearcher().setAdapter(a.popup)},listeners:[{eventName:BI.TextValueComboPopup.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},maxHeight:252},listeners:[{eventName:BI.Combo.EVENT_AFTER_HIDEVIEW,action:function(){a.trigger.stopEditing()}},{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.fireEvent(BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},left:0,right:0,bottom:0,top:0},{el:{type:"bi.trigger_icon_button",cls:"trigger-icon-button",ref:function(){a.triggerBtn=this},width:b.height,height:b.height,handler:function(){a.combo.isViewVisible()?a.combo.hideView():a.combo.showView()}},right:0,bottom:0,top:0}]}},mounted:function(){var a=this.options;BI.isKey(a.value)&&this._checkError(a.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.element.removeClass("combo-error").addClass("combo-error"),this.trigger.attr("tipType","warning")):(this.element.removeClass("combo-error"),this.trigger.attr("tipType","success"))}},populate:function(a){this.options.items=a,this.combo.populate(a)},setValue:function(a){this.combo.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]}}),BI.SearchTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.search_text_value_combo",BI.SearchTextValueCombo),BI.SearchTextValueComboPopup=BI.inherit(BI.Pane,{props:{baseCls:"bi-search-text-value-popup"},render:function(){var a=this,b=this.options;return{type:"bi.vertical",vgap:5,items:[{type:"bi.button_group",ref:function(){a.popup=this},items:BI.createItems(b.items,{type:"bi.single_select_item",textAlign:b.textAlign,height:24}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],behaviors:{redmark:function(){return!0}},value:b.value,listeners:[{eventName:BI.Controller.EVENT_CHANGE,action:function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.SearchTextValueComboPopup.EVENT_CHANGE,c,d)}}]}]}},populate:function(a,b,c){var d=BI.concat(a,b);BI.SearchTextValueComboPopup.superclass.populate.apply(this,d),d=BI.createItems(d,{type:"bi.single_select_item",height:24}),this.popup.populate(d,c)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.SearchTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_combo_popup",BI.SearchTextValueComboPopup),BI.SearchTextValueTrigger=BI.inherit(BI.Trigger,{props:{extraCls:"bi-search-text-value-trigger bi-border",height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.searcher",ref:function(){a.searcher=this},isAutoSearch:!1,el:{type:"bi.state_editor",ref:function(){a.editor=this},text:this._digest(b.value,b.items),value:b.value,height:b.height,tipText:""},popup:{type:"bi.search_text_value_combo_popup",cls:"bi-card",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE},onSearch:function(a,c){var d=a.keyword,e=BI.Func.getSearchResult(b.items,d),f=e.match,g=e.find;c(g,f)},listeners:[{eventName:BI.Searcher.EVENT_CHANGE,action:function(){a.fireEvent(BI.SearchTextValueTrigger.EVENT_CHANGE)}}]}},{el:{type:"bi.layout",width:24},width:24}]}},_setState:function(a){this.editor.setState(a)},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},stopEditing:function(){this.searcher.stopSearch()},getSearcher:function(){return this.searcher},populate:function(a){this.options.items=a},setValue:function(a){this._setState(this._digest(a,this.options.items))},getValue:function(){return this.searcher.getValue()}}),BI.SearchTextValueTrigger.EVENT_SEARCHING="EVENT_SEARCHING",BI.SearchTextValueTrigger.EVENT_STOP="EVENT_STOP",BI.SearchTextValueTrigger.EVENT_START="EVENT_START",BI.SearchTextValueTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_trigger",BI.SearchTextValueTrigger),BI.TextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-check-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCheckCombo.hideView(),a.fireEvent(BI.TextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}}),BI.isKey(b.value)&&this.setValue(b.value)},setTitle:function(a){this.trigger.setTitle(a)},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},setWarningTitle:function(a){this.trigger.setWarningTitle(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCheckCombo.populate(a)}}),BI.TextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo",BI.TextValueCheckCombo),BI.SmallTextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:""})},_init:function(){BI.SmallTextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextIconCheckCombo.hideView(),a.fireEvent(BI.SmallTextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.SmallTextIconCheckCombo.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextIconCheckCombo.populate(a)}}),BI.SmallTextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_check_combo",BI.SmallTextValueCheckCombo),BI.TextValueCheckComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueCheckComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:this._formatItems(a.items),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueCheckComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},_formatItems:function(a){return BI.map(a,function(a,b){return BI.extend({type:"bi.icon_text_item",cls:"item-check-font bi-list-item",height:24},b)})},populate:function(a){BI.TextValueCheckComboPopup.superclass.populate.apply(this,arguments),this.popup.populate(this._formatItems(a))},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueCheckComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo_popup",BI.TextValueCheckComboPopup),BI.TextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-combo",height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:"",value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,value:b.value,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.TextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this._checkError(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.setTipType("warning"),this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.setTipType("success"),this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.TextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo",BI.TextValueCombo),BI.SmallTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,el:{},text:""})},_init:function(){BI.SmallTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextValueCombo.hideView(),a.fireEvent(BI.SmallTextValueCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextValueCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextValueCombo.populate(a)}}),BI.SmallTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_combo",BI.SmallTextValueCombo),BI.TextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_item",textAlign:a.textAlign,height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueComboPopup.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.TextValueComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo_popup",BI.TextValueComboPopup),BI.TextValueDownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueDownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-down-list-combo",height:24,attributes:{tabIndex:0}})},_init:function(){BI.TextValueDownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this._createValueMap();var c;BI.isNotNull(b.value)&&(c=this._digest(b.value)),this.trigger=BI.createWidget({type:"bi.down_list_select_text_trigger",cls:"text-value-down-list-trigger",height:b.height,items:b.items,text:b.text,value:c}),this.combo=BI.createWidget({type:"bi.down_list_combo",element:this,chooseType:BI.Selection.Single,adjustLength:2,height:b.height,el:this.trigger,value:BI.isNull(c)?[]:[c],items:BI.deepClone(b.items)}),this.combo.on(BI.DownListCombo.EVENT_CHANGE,function(){var b=a.combo.getValue()[0].value;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))}),this.combo.on(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,function(){var b=a.combo.getValue()[0].childValue;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))})},_createValueMap:function(){var a=this;this.valueMap={},BI.each(BI.flatten(this.options.items),function(b,c){BI.has(c,"el")?BI.each(c.children,function(b,d){a.valueMap[d.value]={value:c.el.value,childValue:d.value}}):a.valueMap[c.value]={value:c.value}})},_digest:function(a){return this.value=a,this.valueMap[a]},setValue:function(a){a=this._digest(a),this.combo.setValue([a]),this.trigger.setValue(a)},getValue:function(){var a=this.combo.getValue()[0];return[a.childValue||a.value]},populate:function(a){this.options.items=BI.flatten(a),this.combo.populate(a),this._createValueMap()}}),BI.TextValueDownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_down_list_combo",BI.TextValueDownListCombo),BI.DownListSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.DownListSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-select-text-trigger",height:24,text:""})},_init:function(){BI.DownListSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",element:this,height:a.height,items:this._formatItemArray(a.items),text:a.text,value:BI.isNull(a.value)?"":a.value.childValue||a.value.value})},_formatItemArray:function(){var a=BI.flatten(BI.deepClone(this.options.items)),b=[];return BI.each(a,function(a,c){BI.has(c,"el")?(BI.each(c.children,function(a,b){b.text=c.el.text+"("+b.text+")"}),b=BI.concat(b,c.children)):b.push(c)}),b},setValue:function(a){this.trigger.setValue(a.childValue||a.value)},populate:function(a){this.trigger.populate(this._formatItemArray(a))}}),BI.shortcut("bi.down_list_select_text_trigger",BI.DownListSelectTextTrigger),BI.ClearEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ClearEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-clear-editor",height:24,errorText:"",watermark:"",validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){BI.ClearEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker,value:b.value}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"search-close-h-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.ClearEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ClearEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ClearEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ClearEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ClearEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ClearEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.ClearEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ClearEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ClearEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.ClearEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.ClearEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ClearEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ClearEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ClearEditor.EVENT_STOP)}),BI.isKey(b.value)?this.clear.visible():this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isValid:function(){return this.editor.isValid()}}),BI.ClearEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ClearEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ClearEditor.EVENT_BLUR="EVENT_BLUR",BI.ClearEditor.EVENT_CLICK="EVENT_CLICK",BI.ClearEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ClearEditor.EVENT_SPACE="EVENT_SPACE",BI.ClearEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.ClearEditor.EVENT_CLEAR="EVENT_CLEAR",BI.ClearEditor.EVENT_START="EVENT_START",BI.ClearEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ClearEditor.EVENT_STOP="EVENT_STOP",BI.ClearEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ClearEditor.EVENT_VALID="EVENT_VALID",BI.ClearEditor.EVENT_ERROR="EVENT_ERROR",BI.ClearEditor.EVENT_ENTER="EVENT_ENTER",BI.ClearEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ClearEditor.EVENT_REMOVE="EVENT_REMOVE",BI.ClearEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.clear_editor",BI.ClearEditor),BI.ShelterEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ShelterEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-shelter-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,textAlign:"left"})},_init:function(){BI.ShelterEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"shelter-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:b.textAlign,height:b.height,hgap:b.hgap}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.text.on(BI.Controller.EVENT_CHANGE,function(){arguments[2]=a,a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK_LABEL)}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ShelterEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ShelterEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ShelterEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ShelterEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ShelterEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ShelterEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ShelterEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ShelterEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ShelterEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ShelterEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.ShelterEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText(),this.text.doRedMark(b.keyword)},_checkText:function(){var a=this.options;""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setTextStyle:function(a){this.text.setStyle(a)},setValue:function(a){this.editor.setValue(a),this._checkText(),this.text.doRedMark(this.options.keyword)},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.ShelterEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ShelterEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ShelterEditor.EVENT_BLUR="EVENT_BLUR",BI.ShelterEditor.EVENT_CLICK="EVENT_CLICK",BI.ShelterEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ShelterEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.ShelterEditor.EVENT_START="EVENT_START",BI.ShelterEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ShelterEditor.EVENT_STOP="EVENT_STOP",BI.ShelterEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ShelterEditor.EVENT_VALID="EVENT_VALID",BI.ShelterEditor.EVENT_ERROR="EVENT_ERROR",BI.ShelterEditor.EVENT_ENTER="EVENT_ENTER",BI.ShelterEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ShelterEditor.EVENT_SPACE="EVENT_SPACE",BI.ShelterEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.shelter_editor",BI.ShelterEditor),BI.SignEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SignEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-sign-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SignEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"sign-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:"left",height:b.height,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.selectAll()}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SignEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SignEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SignEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SignEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SignEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SignEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SignEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.SignEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SignEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SignEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SignEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SignEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.SignEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SignEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SignEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SignEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText()},_checkText:function(){var a=this.options;BI.nextTick(BI.bind(function(){""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},this))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){ return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),this._checkText()},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.SignEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SignEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SignEditor.EVENT_BLUR="EVENT_BLUR",BI.SignEditor.EVENT_CLICK="EVENT_CLICK",BI.SignEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SignEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SignEditor.EVENT_START="EVENT_START",BI.SignEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SignEditor.EVENT_STOP="EVENT_STOP",BI.SignEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SignEditor.EVENT_VALID="EVENT_VALID",BI.SignEditor.EVENT_ERROR="EVENT_ERROR",BI.SignEditor.EVENT_ENTER="EVENT_ENTER",BI.SignEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SignEditor.EVENT_SPACE="EVENT_SPACE",BI.SignEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.sign_editor",BI.SignEditor),BI.StateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,text:BI.i18nText("BI-Basic_Unrestricted")})},_init:function(){BI.StateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text tip-text-style",textAlign:"left",height:b.height,text:b.text,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")},title:BI.isNotNull(b.tipText)?b.tipText:function(){var b="";return BI.isString(a.stateValue)&&(b=a.stateValue),BI.isArray(a.stateValue)&&1===a.stateValue.length&&(b=a.stateValue[0]),b},warningTitle:b.warningTitle,tipType:b.tipType}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.StateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.StateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.StateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.StateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.StateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.StateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.StateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.StateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.StateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.StateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.StateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.StateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.StateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.StateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.StateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.StateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this.options.disabled===!1&&(this._showInput(),this.editor.focus())},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){var b=this.options;return BI.StateEditor.superclass.setValue.apply(this,arguments),this.stateValue=a,BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Select_All")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text"))):BI.isString(a)?(this.text.setText(a),void this.text.element.removeClass("state-editor-infinite-text")):void(BI.isArray(a)&&(BI.isEmpty(a)?(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text")):1===a.length?(this.text.setText(a[0]),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text"))))},setTipType:function(a){this.text.options.tipType=a}}),BI.StateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.StateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.StateEditor.EVENT_BLUR="EVENT_BLUR",BI.StateEditor.EVENT_CLICK="EVENT_CLICK",BI.StateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.StateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.StateEditor.EVENT_START="EVENT_START",BI.StateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.StateEditor.EVENT_STOP="EVENT_STOP",BI.StateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.StateEditor.EVENT_VALID="EVENT_VALID",BI.StateEditor.EVENT_ERROR="EVENT_ERROR",BI.StateEditor.EVENT_ENTER="EVENT_ENTER",BI.StateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.StateEditor.EVENT_SPACE="EVENT_SPACE",BI.StateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.state_editor",BI.StateEditor),BI.SimpleStateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SimpleStateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-simple-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,mouseOut:!1,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SimpleStateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text",textAlign:"left",height:b.height,text:BI.i18nText("BI-Basic_Unrestricted"),hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SimpleStateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.SimpleStateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){return BI.SimpleStateEditor.superclass.setValue.apply(this,arguments),BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text"))):void(BI.isArray(a)&&1!==a.length?BI.isEmpty(a)?(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(a),this.text.setTitle(a),this.text.element.removeClass("state-editor-infinite-text")))}}),BI.SimpleStateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SimpleStateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SimpleStateEditor.EVENT_BLUR="EVENT_BLUR",BI.SimpleStateEditor.EVENT_CLICK="EVENT_CLICK",BI.SimpleStateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SimpleStateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SimpleStateEditor.EVENT_START="EVENT_START",BI.SimpleStateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SimpleStateEditor.EVENT_STOP="EVENT_STOP",BI.SimpleStateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SimpleStateEditor.EVENT_VALID="EVENT_VALID",BI.SimpleStateEditor.EVENT_ERROR="EVENT_ERROR",BI.SimpleStateEditor.EVENT_ENTER="EVENT_ENTER",BI.SimpleStateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SimpleStateEditor.EVENT_SPACE="EVENT_SPACE",BI.SimpleStateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.simple_state_editor",BI.SimpleStateEditor),BI.MultiPopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.MultiPopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{_baseCls:(a._baseCls||"")+" bi-multi-list-view",buttons:[BI.i18nText("BI-Basic_Sure")]})},_init:function(){BI.MultiPopupView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this;if(0!==a.buttons.length){var c=[];return BI.each(a.buttons,function(a,b){c.push({text:b,value:a})}),this.buttongroup=BI.createWidget({type:"bi.button_group",cls:"list-view-toolbar bi-high-light bi-split-top",height:24,items:BI.createItems(c,{type:"bi.text_button",once:!1,shadow:!0,isShadowShowingOnSelected:!0}),layouts:[{type:"bi.center",hgap:0,vgap:0}]}),this.buttongroup.on(BI.ButtonGroup.EVENT_CHANGE,function(a,c){b.fireEvent(BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON,a,c)}),this.buttongroup}}}),BI.MultiPopupView.EVENT_CHANGE="EVENT_CHANGE",BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.multi_popup_view",BI.MultiPopupView),BI.PopupPanel=BI.inherit(BI.MultiPopupView,{_defaultConfig:function(){var a=BI.PopupPanel.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-popup-panel",title:""})},_init:function(){BI.PopupPanel.superclass._init.apply(this,arguments)},_createTool:function(){var a=this,b=this.options,c=BI.createWidget({type:"bi.icon_button",cls:"close-h-font",width:25,height:25});return c.on(BI.IconButton.EVENT_CHANGE,function(){a.setVisible(!1),a.fireEvent(BI.PopupPanel.EVENT_CLOSE)}),BI.createWidget({type:"bi.htape",cls:"popup-panel-title bi-header-background",height:25,items:[{el:{type:"bi.label",textAlign:"left",text:b.title,height:25,lgap:10}},{el:c,width:25}]})}}),BI.PopupPanel.EVENT_CHANGE="EVENT_CHANGE",BI.PopupPanel.EVENT_CLOSE="EVENT_CLOSE",BI.PopupPanel.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.popup_panel",BI.PopupPanel),BI.ListPane=BI.inherit(BI.Pane,{_defaultConfig:function(){var a=BI.ListPane.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-list-pane",logic:{dynamic:!0},lgap:0,rgap:0,tgap:0,bgap:0,vgap:0,hgap:0,items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,el:{type:"bi.button_group"}})},_init:function(){BI.ListPane.superclass._init.apply(this,arguments);var a=this,b=this.options;this.button_group=BI.createWidget(b.el,{type:"bi.button_group",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,behaviors:{},items:b.items,itemsCreator:function(c,d){1===c.times&&(a.empty(),BI.nextTick(function(){a.loading()})),b.itemsCreator(c,function(){d.apply(a,arguments),1===c.times&&BI.nextTick(function(){a.loaded()})})},hasNext:b.hasNext,layouts:[{type:"bi.vertical"}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.ListPane.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Top),BI.extend({scrolly:!0,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,vgap:b.vgap,hgap:b.hgap},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Top,this.button_group)}))))},hasPrev:function(){return this.button_group.hasPrev&&this.button_group.hasPrev()},hasNext:function(){return this.button_group.hasNext&&this.button_group.hasNext()},prependItems:function(a){this.options.items=a.concat(this.options.items),this.button_group.prependItems.apply(this.button_group,arguments),this.check()},addItems:function(a){this.options.items=this.options.items.concat(a),this.button_group.addItems.apply(this.button_group,arguments),this.check()},removeItemAt:function(a){a=a||[],BI.removeAt(this.options.items,a),this.button_group.removeItemAt.apply(this.button_group,arguments),this.check()},populate:function(a){var b=this;this.options;return 0===arguments.length&&BI.isFunction(this.button_group.attr("itemsCreator"))?void this.button_group.attr("itemsCreator").apply(this,[{times:1},function(){if(0===arguments.length)throw new Error("参数不能为空");b.populate.apply(b,arguments)}]):(BI.ListPane.superclass.populate.apply(this,arguments),void this.button_group.populate.apply(this.button_group,arguments))},empty:function(){this.button_group.empty()},setNotSelectedValue:function(){this.button_group.setNotSelectedValue.apply(this.button_group,arguments)},getNotSelectedValue:function(){return this.button_group.getNotSelectedValue()},setValue:function(){this.button_group.setValue.apply(this.button_group,arguments)},getValue:function(){return this.button_group.getValue.apply(this.button_group,arguments)},getAllButtons:function(){return this.button_group.getAllButtons()},getAllLeaves:function(){return this.button_group.getAllLeaves()},getSelectedButtons:function(){return this.button_group.getSelectedButtons()},getNotSelectedButtons:function(){return this.button_group.getNotSelectedButtons()},getIndexByValue:function(a){return this.button_group.getIndexByValue(a)},getNodeById:function(a){return this.button_group.getNodeById(a)},getNodeByValue:function(a){return this.button_group.getNodeByValue(a)}}),BI.ListPane.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.list_pane",BI.ListPane),BI.Panel=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Panel.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-panel bi-border",title:"",titleButtons:[],el:{},logic:{dynamic:!1}})},_init:function(){BI.Panel.superclass._init.apply(this,arguments);var a=this.options;BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("vertical",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("top",this._createTitle(),this.options.el)}))))},_createTitle:function(){var a=this,b=this.options;return this.text=BI.createWidget({type:"bi.label",cls:"panel-title-text",text:b.title,height:30}),this.button_group=BI.createWidget({type:"bi.button_group",items:b.titleButtons,layouts:[{type:"bi.center_adapt",lgap:10}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.button_group.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Panel.EVENT_CHANGE,b,c)}),{el:{type:"bi.left_right_vertical_adapt",cls:"panel-title bi-header-background bi-border-bottom",height:29,items:{left:[this.text],right:[this.button_group]},lhgap:10,rhgap:10},height:29}},setTitle:function(a){this.text.setValue(a)}}),BI.Panel.EVENT_CHANGE="Panel.EVENT_CHANGE",BI.shortcut("bi.panel",BI.Panel),BI.LinearSegmentButton=BI.inherit(BI.BasicButton,{props:{extraCls:"bi-line-segment-button bi-list-item-effect",once:!0,readonly:!0,hgap:10,height:25},render:function(){var a=this,b=this.options;return[{type:"bi.label",text:b.text,height:b.height,value:b.value,hgap:b.hgap,ref:function(){a.text=this}},{type:"bi.absolute",items:[{el:{type:"bi.layout",cls:"line-segment-button-line",height:2,ref:function(){a.line=this}},left:0,right:0,bottom:0}]}]},setSelected:function(a){BI.LinearSegmentButton.superclass.setSelected.apply(this,arguments),a?this.line.element.addClass("bi-high-light-background"):this.line.element.removeClass("bi-high-light-background")},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.linear_segment_button",BI.LinearSegmentButton),BI.LinearSegment=BI.inherit(BI.Widget,{props:{baseCls:"bi-linear-segment bi-split-bottom",items:[],height:29},render:function(){var a=this,b=this.options;return{type:"bi.button_group",items:BI.createItems(b.items,{type:"bi.linear_segment_button",height:b.height-1}),layout:[{type:"bi.center"}],listeners:[{eventName:"__EVENT_CHANGE__",action:function(){a.fireEvent("__EVENT_CHANGE__",arguments)}},{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.buttonGroup=this}}},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.shortcut("bi.linear_segment",BI.LinearSegment),BI.SelectList=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SelectList.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-list",direction:BI.Direction.Top,logic:{dynamic:!0},items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,toolbar:{type:"bi.multi_select_bar",iconWrapperWidth:36},el:{type:"bi.list_pane"}})},_init:function(){BI.SelectList.superclass._init.apply(this,arguments);var a=this,b=this.options;this.toolbar=BI.createWidget(b.toolbar),this.allSelected=!1,this.toolbar.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.allSelected=this.isSelected(),b===BI.Events.CLICK&&(a.setAllSelected(a.allSelected),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.list=BI.createWidget(b.el,{type:"bi.list_pane",items:b.items,itemsCreator:function(c,d){1===c.times&&a.toolbar.setVisible(!1),b.itemsCreator(c,function(b){d.apply(a,arguments),1===c.times&&(a.toolbar.setVisible(b&&b.length>0),a.toolbar.setEnable(b&&b.length>0)),a._checkAllSelected()})},onLoaded:b.onLoaded,hasNext:b.hasNext}),this.list.on(BI.Controller.EVENT_CHANGE,function(b,c,d){b===BI.Events.CLICK&&(a._checkAllSelected(),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(b.direction),BI.extend({scrolly:!0},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(b.direction,this.toolbar,this.list)})))),b.items.length<=0&&(this.toolbar.setVisible(!1),this.toolbar.setEnable(!1)),BI.isNotNull(b.value)&&this.setValue(b.value)},_checkAllSelected:function(){var a=this.list.getValue().length,b=this.getAllLeaves().length-a,c=this.list.hasNext(),d=this.toolbar.isSelected(),e=a>0&&(b>0||!d&&c);e=e||b>0&&c&&d,this.toolbar.setHalfSelected(e),!e&&this.toolbar.setSelected(a>0&&b<=0&&(!c||d))},setAllSelected:function(a){BI.each(this.getAllButtons(),function(b,c){(c.setSelected||c.setAllSelected).apply(c,[a])}),this.allSelected=!!a,this.toolbar.setSelected(a),this.toolbar.setHalfSelected(!1)},setToolBarVisible:function(a){this.toolbar.setVisible(a)},isAllSelected:function(){return this.allSelected},hasPrev:function(){return this.list.hasPrev()},hasNext:function(){return this.list.hasNext()},prependItems:function(a){this.list.prependItems.apply(this.list,arguments)},addItems:function(a){this.list.addItems.apply(this.list,arguments)},setValue:function(a){var b=a.type===BI.ButtonGroup.CHOOSE_TYPE_ALL;this.setAllSelected(b),this.list[b?"setNotSelectedValue":"setValue"](a.value),this._checkAllSelected()},getValue:function(){return this.isAllSelected()===!1?{type:BI.ButtonGroup.CHOOSE_TYPE_MULTI,value:this.list.getValue(),assist:this.list.getNotSelectedValue()}:{type:BI.ButtonGroup.CHOOSE_TYPE_ALL,value:this.list.getNotSelectedValue(),assist:this.list.getValue()}},empty:function(){this.list.empty()},populate:function(a){this.toolbar.setVisible(!BI.isEmptyArray(a)),this.toolbar.setEnable(!BI.isEmptyArray(a)),this.list.populate.apply(this.list,arguments),this._checkAllSelected()},_setEnable:function(a){BI.SelectList.superclass._setEnable.apply(this,arguments),this.toolbar.setEnable(a)},resetHeight:function(a){var b=(this.toolbar.element.outerHeight()||25)*(this.toolbar.isVisible()?1:0);this.list.resetHeight?this.list.resetHeight(a-b):this.list.element.css({"max-height":a-b+"px"})},setNotSelectedValue:function(){this.list.setNotSelectedValue.apply(this.list,arguments),this._checkAllSelected()},getNotSelectedValue:function(){return this.list.getNotSelectedValue()},getAllButtons:function(){return this.list.getAllButtons()},getAllLeaves:function(){return this.list.getAllLeaves()},getSelectedButtons:function(){return this.list.getSelectedButtons()},getNotSelectedButtons:function(){return this.list.getNotSelectedButtons()},getIndexByValue:function(a){return this.list.getIndexByValue(a)},getNodeById:function(a){return this.list.getNodeById(a)},getNodeByValue:function(a){return this.list.getNodeByValue(a)}}),BI.SelectList.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.select_list",BI.SelectList),BI.LazyLoader=BI.inherit(BI.Widget,{_const:{PAGE:100},_defaultConfig:function(){return BI.extend(BI.LazyLoader.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-lazy-loader",el:{}})},_init:function(){var a=this,b=this.options;BI.LazyLoader.superclass._init.apply(this,arguments);var c=b.items.length;this.loader=BI.createWidget({type:"bi.loader",element:this,el:b.el,itemsCreator:function(b,c){c(a._getNextItems(b))},hasNext:function(a){return a.count=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:30,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:5,right:74},{el:this.vlabel,top:5,right:111},{el:this.hpager,top:5,right:-9},{el:this.hlabel,top:5,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},setValue:function(a){this.trigger.setText(this._digest(a,this.options.items))},setTipType:function(a){this.trigger.setTipType(a)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_text_trigger",BI.SelectTextTrigger),BI.SmallSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SmallSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-small-select-text-trigger bi-border",height:20})},_init:function(){this.options.height-=2,BI.SmallSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digest(a.text,a.items);this.trigger=BI.createWidget({type:"bi.small_text_trigger",element:this,height:a.height-2,text:b.text,cls:b.cls})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?{cls:"",text:d.join(",")}:{cls:"bi-water-mark",text:c.text}},setValue:function(a){var b=this._digest(a,this.options.items);this.trigger.element.removeClass("bi-water-mark").addClass(b.cls),this.trigger.setText(b.text)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.small_select_text_trigger",BI.SmallSelectTextTrigger),BI.SmallTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.SmallTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:20})},_init:function(){BI.SmallTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",textAlign:"left",height:a.height,text:a.text,hgap:b.hgap}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:a.triggerWidth||a.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:a.triggerWidth||a.height}]})},setValue:function(a){this.text.setValue(a)},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.small_text_trigger",BI.SmallTextTrigger),BI.MonthDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.MonthDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-month-combo",height:24,container:null})},_init:function(){BI.MonthDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.month_popup",behaviors:b.behaviors}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue())}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",container:b.container,element:this,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:85,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.combo.hideView(),a.fireEvent(BI.MonthDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.MonthDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.month_date_combo",BI.MonthDateCombo),BI.YearDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.YearDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-combo",min:"1900-01-01",max:"2099-12-31",behaviors:{},height:24,container:null})},_init:function(){BI.YearDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.year_popup",behaviors:b.behaviors,min:b.min,max:b.max}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()), +b.attributes={sorted:b.value}}),a},hasNext:function(){return this.loader.hasNext()},addItems:function(a){this.loader.addItems(a)},populate:function(a){a&&(arguments[0]=this._formatItems(a)),this.loader.populate.apply(this.loader,arguments)},empty:function(){this.loader.empty()},setNotSelectedValue:function(){this.loader.setNotSelectedValue.apply(this.loader,arguments)},getNotSelectedValue:function(){return this.loader.getNotSelectedValue()},setValue:function(){this.loader.setValue.apply(this.loader,arguments)},getValue:function(){return this.loader.getValue()},getAllButtons:function(){return this.loader.getAllButtons()},getAllLeaves:function(){return this.loader.getAllLeaves()},getSelectedButtons:function(){return this.loader.getSelectedButtons()},getNotSelectedButtons:function(){return this.loader.getNotSelectedButtons()},getIndexByValue:function(a){return this.loader.getIndexByValue(a)},getNodeById:function(a){return this.loader.getNodeById(a)},getNodeByValue:function(a){return this.loader.getNodeByValue(a)},getSortedValues:function(){return this.loader.element.sortable("toArray",{attribute:"sorted"})}}),BI.SortList.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.sort_list",BI.SortList),BI.AllCountPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.AllCountPager.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-all-count-pager",height:20,pages:1,curr:1,count:1})},_init:function(){BI.AllCountPager.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.small_text_editor",cls:"pager-editor",validationChecker:function(b){return 0===a.rowCount.getValue()&&"0"===b||BI.isPositiveInteger(b)},hgap:4,vgap:0,value:b.curr,errorText:BI.i18nText("BI-Please_Input_Positive_Integer"),width:35,height:16}),this.pager=BI.createWidget({type:"bi.pager",width:36,layouts:[{type:"bi.horizontal",hgap:1,vgap:1}],dynamicShow:!1,pages:b.pages,curr:b.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Previous_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,cls:"all-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Next_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,cls:"all-pager-next column-next-page-h-font"},hasPrev:b.hasPrev,hasNext:b.hasNext,firstPage:b.firstPage,lastPage:b.lastPage}),this.editor.on(BI.TextEditor.EVENT_CONFIRM,function(){a.pager.setValue(BI.parseInt(a.editor.getValue())),a.fireEvent(BI.AllCountPager.EVENT_CHANGE)}),this.pager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.AllCountPager.EVENT_CHANGE)}),this.pager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.editor.setValue(a.pager.getCurrentPage())}),this.allPages=BI.createWidget({type:"bi.label",width:30,title:b.pages,text:"/"+b.pages}),this.rowCount=BI.createWidget({type:"bi.label",height:b.height,hgap:5,text:b.count,title:b.count});var c=BI.createWidget({type:"bi.left",height:b.height,scrollable:!1,items:[{type:"bi.label",height:b.height,text:BI.i18nText("BI-Basic_Total"),width:15},this.rowCount,{type:"bi.label",height:b.height,text:BI.i18nText("BI-Tiao_Data"),width:50,textAlign:"left"}]});BI.createWidget({type:"bi.center_adapt",element:this,columnSize:["",35,40,36],items:[c,this.editor,this.allPages,this.pager]})},alwaysShowPager:!0,setAllPages:function(a){this.allPages.setText("/"+a),this.allPages.setTitle(a),this.pager.setAllPages(a),this.editor.setEnable(a>=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:20,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:0,right:74},{el:this.vlabel,top:0,right:111},{el:this.hpager,top:0,right:-9},{el:this.hlabel,top:0,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},setValue:function(a){this.trigger.setText(this._digest(a,this.options.items))},setTipType:function(a){this.trigger.setTipType(a)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_text_trigger",BI.SelectTextTrigger),BI.SmallSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SmallSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-small-select-text-trigger bi-border",height:20})},_init:function(){this.options.height-=2,BI.SmallSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digest(a.text,a.items);this.trigger=BI.createWidget({type:"bi.small_text_trigger",element:this,height:a.height-2,text:b.text,cls:b.cls})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?{cls:"",text:d.join(",")}:{cls:"bi-water-mark",text:c.text}},setValue:function(a){var b=this._digest(a,this.options.items);this.trigger.element.removeClass("bi-water-mark").addClass(b.cls),this.trigger.setText(b.text)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.small_select_text_trigger",BI.SmallSelectTextTrigger),BI.SmallTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.SmallTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:20})},_init:function(){BI.SmallTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",textAlign:"left",height:a.height,text:a.text,hgap:b.hgap}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:a.triggerWidth||a.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:a.triggerWidth||a.height}]})},setValue:function(a){this.text.setValue(a)},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.small_text_trigger",BI.SmallTextTrigger),BI.MonthDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.MonthDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-month-combo",height:24,container:null})},_init:function(){BI.MonthDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.month_popup",behaviors:b.behaviors}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue())}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",container:b.container,element:this,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:85,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.combo.hideView(),a.fireEvent(BI.MonthDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.MonthDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.month_date_combo",BI.MonthDateCombo),BI.YearDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.YearDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-combo",min:"1900-01-01",max:"2099-12-31",behaviors:{},height:24,container:null})},_init:function(){BI.YearDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.year_popup",behaviors:b.behaviors,min:b.min,max:b.max}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()), a.combo.hideView(),a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",element:this,container:b.container,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:100,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.YearDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_date_combo",BI.YearDateCombo),BI.DatePicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DatePicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-picker",height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.DatePicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this._month=BI.getDate().getMonth()+1,this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){1===a._month?a.setValue({year:a.year.getValue()-1,month:12}):a.setValue({year:a.year.getValue(),month:a.month.getValue()-1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){12===a._month?a.setValue({year:a.year.getValue()+1,month:1}):a.setValue({year:a.year.getValue(),month:a.month.getValue()+1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",behaviors:b.behaviors,min:b.min,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),this.month=BI.createWidget({type:"bi.month_date_combo",behaviors:b.behaviors}),this.month.on(BI.MonthDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:24},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal",width:120,rgap:10,items:[{el:this.year,lgap:10},this.month]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:24}]}),this.setValue({year:this._year,month:this._month})},_checkLeftValid:function(){var a=this.options,b=!(1===this._month&&this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(12===this._month&&this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a.year,this._month=a.month,this.year.setValue(a.year),this.month.setValue(a.month),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return{year:this.year.getValue(),month:this.month.getValue()}}}),BI.DatePicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_picker",BI.DatePicker),BI.YearPicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.YearPicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-year-picker",behaviors:{},height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.YearPicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:25,height:25}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()-1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:25,height:25}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()+1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",min:b.min,behaviors:b.behaviors,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue(a.year.getValue()),a.fireEvent(BI.YearPicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:25},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal_float",width:50,items:[{el:this.year}]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:25}]}),this.setValue({year:this._year})},_checkLeftValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a,this.year.setValue(a),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return this.year.getValue()}}),BI.YearPicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_picker",BI.YearPicker),BI.DateCalendarPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DateCalendarPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-calendar-popup",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!0},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_init:function(){BI.DateCalendarPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this._day=this.today.getDate(),this.selectedTime=b.selectedTime||{year:this._year,month:this._month,day:this._day},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.calendar=BI.createWidget({direction:"top",logic:{dynamic:!0},type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this),afterCardCreated:function(){},afterCardShow:function(){this.setValue(a.selectedTime)}}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){a.selectedTime=a.datePicker.getValue(),a.selectedTime.day=1,a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime))}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.calendar,left:5,right:5},{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},setValue:function(a){this.datePicker.setValue(a),this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},getValue:function(){return this.selectedTime}}),BI.DateCalendarPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_calendar_popup",BI.DateCalendarPopup),BI.YearPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.YearPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-popup",behaviors:{},min:"1900-01-01",max:"2099-12-31"})},_createYearCalendar:function(a){var b=this.options,c=this._year,d=BI.createWidget({type:"bi.year_calendar",behaviors:b.behaviors,min:b.min,max:b.max,logic:{dynamic:!0},year:c+12*a});return d.setValue(this._year),d},_init:function(){BI.YearPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.selectedYear=this._year=BI.getDate().getFullYear();var c=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24,value:-1}),d=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24,value:1});this.navigation=BI.createWidget({type:"bi.navigation",element:this,single:!0,logic:{dynamic:!0},tab:{cls:"year-popup-navigation bi-high-light bi-split-top",height:24,items:[c,d]},cardCreator:BI.bind(this._createYearCalendar,this),afterCardShow:function(){this.setValue(a.selectedYear);var b=this.getSelectedCard();c.setEnable(!b.isFrontYear()),d.setEnable(!b.isFinalYear())}}),this.navigation.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedYear=this.getValue(),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a.fireEvent(BI.YearPopup.EVENT_CHANGE,a.selectedYear)}),BI.isKey(b.value)&&this.setValue(b.value)},getValue:function(){return this.selectedYear},setValue:function(a){var b=this.options;a=BI.parseInt(a),BI.checkDateVoid(a,1,1,b.min,b.max)[0]?(a=BI.getDate().getFullYear(),this.selectedYear="",this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue("")):(this.selectedYear=a,this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue(a))}}),BI.YearPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_popup",BI.YearPopup),BI.DateTriangleTrigger=BI.inherit(BI.Trigger,{_const:{height:24,iconWidth:12,iconHeight:12},_defaultConfig:function(){return BI.extend(BI.DateTriangleTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-triangle-trigger pull-down-ha-font cursor-pointer",height:24})},_init:function(){BI.DateTriangleTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"right",text:a.text,value:a.value,height:b.height}),BI.createWidget({type:"bi.vertical_adapt",element:this,items:[{el:this.text,rgap:5},{type:"bi.icon_label",width:16}]})},setValue:function(a){this.text.setValue(a)},getValue:function(){return this.text.getValue()},setText:function(a){this.text.setText(a)},getText:function(){return this.item.getText()},getKey:function(){}}),BI.shortcut("bi.date_triangle_trigger",BI.DateTriangleTrigger),BI.StaticDatePaneCard=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StaticDatePaneCard.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-pane",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_init:function(){BI.StaticDatePaneCard.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this.selectedTime=b.selectedTime||{year:this._year,month:this._month},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){var b=a.datePicker.getValue(),c=BI.getMonthDays(BI.getDate(b.year,b.month-1,1)),d=a.selectedTime.day||0;d>c&&(d=c),a.selectedTime={year:b.year,month:b.month},0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.setValue(b.selectedTime),BI.createWidget({type:"bi.vtape",element:this,items:[{el:this.datePicker,height:40},this.calendar],hgap:10}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){this._setDatePicker(a),this._setCalendar(a)},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_pane_card",BI.StaticDatePaneCard),BI.DynamicDatePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDatePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDatePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDatePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDatePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDatePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDatePane.Static:return{type:"bi.static_date_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDatePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this}}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateCombo.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_pane",BI.DynamicDatePane),BI.extend(BI.DynamicDatePane,{Static:1,Dynamic:2}),BI.DateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:290,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},_defaultConfig:function(){return BI.extend(BI.DateTimeCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-combo bi-border",width:200,height:24})},_init:function(){BI.DateTimeCombo.superclass._init.apply(this,arguments);var a=this,b=this.options,c=BI.getDate();this.storeValue=BI.isNotNull(b.value)?b.value:{year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate(),hour:c.getHours(),minute:c.getMinutes(),second:c.getSeconds()},this.trigger=BI.createWidget({type:"bi.date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),this.popup=BI.createWidget({type:"bi.date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),a.setValue(this.storeValue),this.popup.on(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE,function(){a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CANCEL)}),this.popup.on(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE,function(){a.storeValue=a.popup.getValue(),a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CONFIRM)}),this.combo=BI.createWidget({type:"bi.combo",container:b.container,toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,adjustLength:this.constants.comboAdjustHeight,popup:{el:this.popup,width:this.constants.popupWidth,stopPropagation:!1},hideChecker:function(a){return 0===d.element.find(a.target).length}}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW)});var d=BI.createWidget({type:"bi.icon_button",cls:"bi-trigger-icon-button date-font bi-border-right",width:24,height:24});d.on(BI.IconButton.EVENT_CHANGE,function(){a.combo.isViewVisible()||a.combo.showView()}),BI.createWidget({type:"bi.htape",element:this,items:[{type:"bi.absolute",items:[{el:this.combo,top:0,left:0,right:0,bottom:0},{el:d,top:0,right:0}]}]})},setValue:function(a){this.storeValue=a,this.popup.setValue(a),this.trigger.setValue(a)},getValue:function(){return this.storeValue},hidePopupView:function(){this.combo.hideView()}}),BI.DateTimeCombo.EVENT_CANCEL="EVENT_CANCEL",BI.DateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW="BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.date_time_combo",BI.DateTimeCombo),BI.DateTimePopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimePopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-popup",width:268,height:374})},_init:function(){BI.DateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.cancelButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top bi-border-right",shadow:!0,text:BI.i18nText("BI-Basic_Cancel")}),this.cancelButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE)}),this.okButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top",shadow:!0,text:BI.i18nText("BI-Basic_OK")}),this.okButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE)}),this.dateCombo=BI.createWidget({type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max}),a.dateCombo.on(BI.DateCalendarPopup.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}),this.dateSelect=BI.createWidget({type:"bi.vertical_adapt",cls:"bi-border-top",items:[{type:"bi.label",text:BI.i18nText("BI-Basic_Time"),width:45},{type:"bi.date_time_select",max:23,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.hour=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.minute=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.second=b}}]}),this.setValue(b.value),this.dateButton=BI.createWidget({type:"bi.grid",items:[[this.cancelButton,this.okButton]]}),BI.createWidget({element:this,type:"bi.vtape",items:[{el:this.dateCombo},{el:this.dateSelect,height:50},{el:this.dateButton,height:30}]})},setValue:function(a){var b,c=a;BI.isNull(c)?(b=BI.getDate(),this.dateCombo.setValue({year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}),this.hour.setValue(b.getHours()),this.minute.setValue(b.getMinutes()),this.second.setValue(b.getSeconds())):(this.dateCombo.setValue({year:c.year,month:c.month,day:c.day}),this.hour.setValue(c.hour),this.minute.setValue(c.minute),this.second.setValue(c.second))},getValue:function(){return{year:this.dateCombo.getValue().year,month:this.dateCombo.getValue().month,day:this.dateCombo.getValue().day,hour:this.hour.getValue(),minute:this.minute.getValue(),second:this.second.getValue()}}}),BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE="BUTTON_CANCEL_EVENT_CHANGE",BI.DateTimePopup.CALENDAR_EVENT_CHANGE="CALENDAR_EVENT_CHANGE",BI.shortcut("bi.date_time_popup",BI.DateTimePopup),BI.DateTimeSelect=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimeSelect.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-select bi-border",max:23,min:0})},_init:function(){BI.DateTimeSelect.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.sign_editor",value:this._alertInEditorValue(b.min),allowBlank:!1,errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Please_Input_Natural_Number"):BI.i18nText("BI-Numerical_Interval_Input_Data")},validationChecker:function(a){return BI.isNaturalNumber(a)}}),this.editor.on(BI.TextEditor.EVENT_CONFIRM,function(){a._finetuning(0),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.topBtn=BI.createWidget({type:"bi.icon_button",cls:"column-pre-page-h-font top-button bi-border-left bi-border-bottom"}),this.topBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.bottomBtn=BI.createWidget({type:"bi.icon_button",cls:"column-next-page-h-font bottom-button bi-border-left"}),this.bottomBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(-1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this._finetuning(0),BI.createWidget({type:"bi.htape",element:this,items:[this.editor,{el:{type:"bi.grid",columns:1,rows:2,items:[{column:0,row:0,el:this.topBtn},{column:0,row:1,el:this.bottomBtn}]},width:30}]})},_alertOutEditorValue:function(a){return a>this.options.max&&(a=this.options.min),athis.options.max&&(a=this.options.min),ac&&(d=c),a.selectedTime=BI.extend(a.selectedTime,{year:b.year,month:b.month,day:d}),0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.vtape",element:this,hgap:10,items:[{el:this.datePicker,height:40},this.calendar,{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.fireEvent("EVENT_CHANGE")}}]},height:40}]}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]}),this.setValue(b.selectedTime)},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=BI.extend({},this.timeSelect.getValue(),a)},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){a=a||{},this._setDatePicker(a),this._setCalendar(a),this.timeSelect.setValue({hour:a.hour,minute:a.minute,second:a.second})},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_time_pane_card",BI.StaticDateTimePaneCard),BI.DynamicDateTimePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateTimePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateTimePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDateTimePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDateTimePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDateTimePane.Static:return{type:"bi.static_date_time_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDateTimePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this}}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateTimePane.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateTimePane.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_time_pane",BI.DynamicDateTimePane),BI.extend(BI.DynamicDateTimePane,{Static:1,Dynamic:2}),BI.DownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-combo",height:24,items:[],adjustLength:0,direction:"bottom",trigger:"click",container:null,stopPropagation:!1,el:{}})},_init:function(){BI.DownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.popupview=BI.createWidget({type:"bi.down_list_popup",items:b.items,chooseType:b.chooseType,value:b.value}),this.popupview.on(BI.DownListPopup.EVENT_CHANGE,function(b){a.fireEvent(BI.DownListCombo.EVENT_CHANGE,b),a.downlistcombo.hideView()}),this.popupview.on(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,function(b,c){a.fireEvent(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,b,c),a.downlistcombo.hideView()}),this.downlistcombo=BI.createWidget({element:this,type:"bi.combo",trigger:b.trigger,isNeedAdjustWidth:!1,container:b.container,adjustLength:b.adjustLength,direction:b.direction,stopPropagation:b.stopPropagation,el:BI.createWidget(b.el,{type:"bi.icon_trigger",extraCls:b.iconCls?b.iconCls:"",width:b.width,height:b.height}),popup:{el:this.popupview,stopPropagation:!0,maxHeight:1e3,minWidth:140}}),this.downlistcombo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.DownListCombo.EVENT_BEFORE_POPUPVIEW)})},hideView:function(){this.downlistcombo.hideView()},showView:function(a){this.downlistcombo.showView(a)},populate:function(a){this.popupview.populate(a)},setValue:function(a){this.popupview.setValue(a)},getValue:function(){return this.popupview.getValue()}}),BI.DownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DownListCombo.EVENT_SON_VALUE_CHANGE="EVENT_SON_VALUE_CHANGE",BI.DownListCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.down_list_combo",BI.DownListCombo),BI.DownListGroup=BI.inherit(BI.Widget,{constants:{iconCls:"check-mark-ha-font"},_defaultConfig:function(){return BI.extend(BI.DownListGroup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-group",items:[{el:{}}]})},_init:function(){BI.DownListGroup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.downlistgroup=BI.createWidget({element:this,type:"bi.button_tree",items:a.items,chooseType:0,layouts:[{type:"bi.vertical",hgap:0,vgap:0}],value:a.value}),this.downlistgroup.on(BI.Controller.EVENT_CHANGE,function(a){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.DownListGroup.EVENT_CHANGE,arguments)})},getValue:function(){return this.downlistgroup.getValue()},setValue:function(a){this.downlistgroup.setValue(a)}}),BI.DownListGroup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group",BI.DownListGroup),BI.DownListItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-item bi-list-item-active",cls:"",height:24,logic:{dynamic:!0},selected:!1,iconHeight:null,iconWidth:null,textHgap:0,textVgap:0,textLgap:0,textRgap:0})},_init:function(){BI.DownListItem.superclass._init.apply(this,arguments); var a=this.options;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"left",hgap:a.textHgap,vgap:a.textVgap,lgap:a.textLgap,rgap:a.textRgap,text:a.text,value:a.value,keyword:a.keyword,height:a.height}),this.icon=BI.createWidget({type:"bi.center_adapt",width:36,height:a.height,items:[{el:{type:"bi.icon",width:a.iconWidth,height:a.iconHeight}}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Left),BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Left,this.icon,this.text)}))))},setValue:function(){this.isReadOnly()||this.text.setValue.apply(this.text,arguments)},getValue:function(){return this.text.getValue()},setText:function(){this.text.setText.apply(this.text,arguments)},getText:function(){return this.text.getText()},doClick:function(){BI.DownListItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListItem.EVENT_CHANGE,this.getValue(),this)},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)}}),BI.DownListItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_item",BI.DownListItem),BI.DownListGroupItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListGroupItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-down-list-group-item",logic:{dynamic:!1},iconCls1:"dot-e-font",iconCls2:"pull-right-e-font"})},_init:function(){BI.DownListGroupItem.superclass._init.apply(this,arguments);var a=this.options,b=this;this.text=BI.createWidget({type:"bi.label",cls:"list-group-item-text",textAlign:"left",text:a.text,value:a.value,height:a.height}),this.icon1=BI.createWidget({type:"bi.icon_button",cls:a.iconCls1,width:36,forceNotSelected:!0,selected:this._digest(a.value)}),this.icon2=BI.createWidget({type:"bi.icon_button",cls:a.iconCls2,width:24,forceNotSelected:!0});var c=BI.createWidget({type:"bi.layout",width:24});BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.icon2,top:0,bottom:0,right:0}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("horizontal",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("left",this.icon1,this.text,c)})))),this.element.hover(function(){b.isEnabled()&&b.hover()},function(){b.isEnabled()&&b.dishover()})},_digest:function(a){var b=this.options;return a=BI.isArray(a)?a:[a],BI.any(a,function(a,c){return BI.contains(b.childValues,c)})},hover:function(){BI.DownListGroupItem.superclass.hover.apply(this,arguments),this.icon1.element.addClass("hover"),this.icon2.element.addClass("hover")},dishover:function(){BI.DownListGroupItem.superclass.dishover.apply(this,arguments),this.icon1.element.removeClass("hover"),this.icon2.element.removeClass("hover")},doClick:function(){BI.DownListGroupItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListGroupItem.EVENT_CHANGE,this.getValue())},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},setValue:function(a){this.icon1.setSelected(this._digest(a))}}),BI.DownListGroupItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group_item",BI.DownListGroupItem),BI.DownListPopup=BI.inherit(BI.Pane,{constants:{nextIcon:"pull-right-e-font",height:24,iconHeight:12,iconWidth:12,hgap:0,vgap:0,border:1},_defaultConfig:function(){var a=BI.DownListPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-popup",items:[],chooseType:BI.Selection.Multi})},_init:function(){BI.DownListPopup.superclass._init.apply(this,arguments),this.singleValues=[],this.childValueMap={},this.fatherValueMap={},this.items=BI.deepClone(this.options.items);var a=this,b=this.options,c=this._createChildren(this.items);this.popup=BI.createWidget({type:"bi.button_tree",items:BI.createItems(c,{},{adjustLength:-2}),layouts:[{type:"bi.vertical",hgap:this.constants.hgap,vgap:this.constants.vgap}],value:this._digest(b.value),chooseType:b.chooseType}),this.popup.on(BI.ButtonTree.EVENT_CHANGE,function(b,c){var d=b;if(BI.isNotNull(a.childValueMap[b])?(d=a.childValueMap[b],a.fireEvent(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,d,a.fatherValueMap[b])):a.fireEvent(BI.DownListPopup.EVENT_CHANGE,d,c),!BI.contains(a.singleValues,d)){var e=a.getValue(),f=[];BI.each(e,function(a,b){b.value!=d&&f.push(b)}),a.setValue(f)}}),BI.createWidget({type:"bi.vertical",element:this,items:[this.popup],vgap:5})},_createChildren:function(a){var b=this,c=[];return BI.each(a,function(d,e){var f={type:"bi.down_list_group",items:[]};if(BI.each(e,function(a,c){BI.isNotEmptyArray(c.children)&&!BI.isEmpty(c.el)?(c.type="bi.combo_group",c.cls="down-list-group",c.trigger="hover",c.isNeedAdjustWidth=!1,c.el.title=c.el.title||c.el.text,c.el.type="bi.down_list_group_item",c.el.logic={dynamic:!0},c.el.height=b.constants.height,c.el.iconCls2=b.constants.nextIcon,c.popup={lgap:1,el:{type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},innerVGap:5,maxHeight:378},c.el.childValues=[],BI.each(c.children,function(a,d){var e=BI.deepClone(c.el.value),f=BI.deepClone(d.value);b.singleValues.push(d.value),d.type="bi.down_list_item",d.extraCls=" child-down-list-item",d.title=d.title||d.text,d.textRgap=10,d.isNeedAdjustWidth=!1,d.logic={dynamic:!0},d.father=e,b.fatherValueMap[b._createChildValue(e,f)]=e,b.childValueMap[b._createChildValue(e,f)]=f,d.value=b._createChildValue(e,f),c.el.childValues.push(d.value)})):(c.type="bi.down_list_item",c.title=c.title||c.text,c.textRgap=10,c.isNeedAdjustWidth=!1,c.logic={dynamic:!0});var d={};d.el=c,f.items.push(d)}),b._isGroup(f.items)&&BI.each(f.items,function(a,c){b.singleValues.push(c.el.value)}),c.push(f),b._needSpliter(d,a.length)){var g=BI.createWidget({type:"bi.vertical",items:[{el:{type:"bi.layout",cls:"bi-down-list-spliter bi-split-top cursor-pointer",height:0}}],cls:"bi-down-list-spliter-container cursor-pointer",vgap:5,lgap:10,rgap:0});c.push(g)}}),c},_isGroup:function(a){return a.length>1},_needSpliter:function(a,b){return a0?1:0}},setValue:function(a){a=a||{},this.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT;var b=[],c=[];BI.isNotNull(a.year)&&(b.push(BI.DynamicDateCard.TYPE.YEAR),c.push(this._createValue(BI.DynamicDateCard.TYPE.YEAR,a.year))),BI.isNotNull(a.quarter)&&(b.push(BI.DynamicDateCard.TYPE.QUARTER),c.push(this._createValue(BI.DynamicDateCard.TYPE.QUARTER,a.quarter))),BI.isNotNull(a.month)&&(b.push(BI.DynamicDateCard.TYPE.MONTH),c.push(this._createValue(BI.DynamicDateCard.TYPE.MONTH,a.month))),BI.isNotNull(a.week)&&(b.push(BI.DynamicDateCard.TYPE.WEEK),c.push(this._createValue(BI.DynamicDateCard.TYPE.WEEK,a.week))),BI.isNotNull(a.day)&&(b.push(BI.DynamicDateCard.TYPE.DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.DAY,a.day))),BI.isNotNull(a.workDay)&&(b.push(BI.DynamicDateCard.TYPE.WORK_DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.WORK_DAY,a.workDay))),this.checkgroup.setValue(b),this.workDayBox.setSelected(BI.isNotNull(a.workDay)),this.resultPane.populate(this._getParamJson(c,a.position))},getValue:function(){var a=this,b={},c=this.checkgroup.getValue(),d=this.resultPane.getAllButtons();if(0!==c.length&&BI.each(d,function(c,d){var e=d.getValue();switch(e.dateType){case BI.DynamicDateCard.TYPE.YEAR:b.year=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.QUARTER:b.quarter=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.MONTH:b.month=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.WEEK:b.week=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.DAY:b.day=0===e.offset?-e.value:e.value}BI.isNull(e.dateType)&&(b.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT)}),this.workDayBox.isSelected()){var e=d[0].getValue();b.workDay=0===e.offset?-e.value:e.value}return b}}),BI.shortcut("bi.dynamic_date_card",BI.DynamicDateCard),BI.extend(BI.DynamicDateCard,{TYPE:{YEAR:1,QUARTER:2,MONTH:3,WEEK:4,DAY:5,WORK_DAY:6},OFFSET:{CURRENT:1,BEGIN:2,END:3}}),BI.DynamicDateCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow bi-border-radius",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW)}}]},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},_defaultState:function(){},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()}}),BI.DynamicDateCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW="BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_combo",BI.DynamicDateCombo),BI.extend(BI.DynamicDateCombo,{Static:1,Dynamic:2}),BI.DynamicDateParamItem=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-param-item",dateType:BI.DynamicDateCard.TYPE.YEAR,value:0,offset:0,height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.sign_editor",cls:"bi-border",height:22,validationChecker:function(a){return BI.isNaturalNumber(a)},value:b.value,ref:function(){a.editor=this},errorText:function(a){return BI.isEmptyString(a)?BI.i18nText("BI-Basic_Please_Input_Content"):BI.i18nText("BI-Please_Input_Natural_Number")},allowBlank:!1,listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]},width:60},{el:{type:"bi.label",height:24,text:this._getText()},width:b.dateType===BI.DynamicDateCard.TYPE.WORK_DAY?60:20},{type:"bi.text_value_combo",height:24,items:[{text:BI.i18nText("BI-Basic_Front"),value:0},{text:BI.i18nText("BI-Basic_Behind"),value:1}],ref:function(){a.offsetCombo=this},container:null,value:b.offset,listeners:[{eventName:BI.TextValueCombo.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]}]}},_getText:function(){var a="";switch(this.options.dateType){case BI.DynamicDateCard.TYPE.YEAR:a=BI.i18nText("BI-Basic_Year");break;case BI.DynamicDateCard.TYPE.QUARTER:a=BI.i18nText("BI-Basic_Single_Quarter");break;case BI.DynamicDateCard.TYPE.MONTH:a=BI.i18nText("BI-Basic_Month");break;case BI.DynamicDateCard.TYPE.WEEK:a=BI.i18nText("BI-Basic_Week");break;case BI.DynamicDateCard.TYPE.DAY:a=BI.i18nText("BI-Basic_Day");break;case BI.DynamicDateCard.TYPE.WORK_DAY:default:a=BI.i18nText("BI-Basic_Work_Day")}return a},setValue:function(a){a=a||{},a.value=a.value||0,a.offset=a.offset||0,this.editor.setValue(a.value),this.offsetCombo.setValue(a.offset)},getValue:function(){return{dateType:this.options.dateType,value:this.editor.getValue(),offset:this.offsetCombo.getValue()[0]}}}),BI.DynamicDateParamItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.dynamic_date_param_item",BI.DynamicDateParamItem),BI.DynamicDatePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-popup",width:248,height:344},_init:function(){BI.DynamicDatePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",shadow:!0,text:BI.i18nText("BI-Basic_Clear"),textHeight:c.buttonHeight-1,listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",shadow:!0,textHeight:c.buttonHeight-1,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,listeners:[{eventName:BI.DateCalendarPopup.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.EVENT_CHANGE)}}],ref:function(){a.ymd=this}}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.DynamicDatePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_popup",BI.DynamicDatePopup),BI.DynamicDateTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Date_Trigger_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text")},title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.getDate();f=BI.DynamicDateHelper.getCalculation(d);var g=BI.print(f,"%Y-%x-%e");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day),"%Y-%X-%d")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split("-");a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2]}}}a.fireEvent(BI.DynamicDateTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_SPACE,function(){a.editor.isValid()&&a.editor.blur()}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>=0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))), d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day),"%Y-%X-%d");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue}}),BI.DynamicDateTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTrigger.EVENT_START="EVENT_START",BI.DynamicDateTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_trigger",BI.DynamicDateTrigger),BI.DynamicDateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateTimeCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateTimeCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateTimeCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate(),hour:0,minute:0,second:0}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateTimeCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()},isValid:function(){return this.trigger.isValid()}}),BI.DynamicDateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_time_combo",BI.DynamicDateTimeCombo),BI.extend(BI.DynamicDateTimeCombo,{Static:1,Dynamic:2}),BI.DynamicDateTimePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-time-popup",width:248,height:385},_init:function(){BI.DynamicDateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_Clear"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.vtape",items:[{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,ref:function(){a.ymd=this}},{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){}}]},height:40}]}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a.timeSelect.setValue(),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.timeSelect.setValue(),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.timeSelect.setValue({hour:c.hour,minute:c.minute,second:c.second}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){var a=this.dateTab.getSelect();return{type:a,value:a===BI.DynamicDateTimeCombo.Static?BI.extend(this.ymd.getValue(),this.timeSelect.getValue()):this.dynamicPane.getValue()}}}),BI.DynamicDateTimePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_time_popup",BI.DynamicDateTimePopup),BI.DynamicDateTimeSelect=BI.inherit(BI.Widget,{props:{baseCls:"bi-date-time-select bi-split-top"},render:function(){var a=this;return{type:"bi.center_adapt",items:[{type:"bi.vertical_adapt",items:[{el:{type:"bi.number_editor",ref:function(){a.hour=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<24},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-23"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkHour(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.HOUR);this.setValue(b)}}],width:60,height:24},lgap:14},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.minute=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkMinute(b),this.setValue(a._formatValueToDoubleDigit(b),BI.DynamicDateTimeSelect.MINUTE),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.MINUTE);this.setValue(b)}}],width:60,height:24},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.second=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkSecond(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}}],width:60,height:24}]}]}},_checkBorder:function(a){a=a||{},this._checkHour(a.hour),this._checkMinute(a.minute),this._checkSecond(a.second)},_checkHour:function(a){this.hour.setDownEnable(BI.parseInt(a)>0),this.hour.setUpEnable(BI.parseInt(a)<23)},_checkMinute:function(a){this.minute.setDownEnable(BI.parseInt(a)>0),this.minute.setUpEnable(BI.parseInt(a)<59)},_checkSecond:function(a){this.second.setDownEnable(BI.parseInt(a)>0),this.second.setUpEnable(BI.parseInt(a)<59)},_autoSwitch:function(a,b){var c=0,d=a+"";switch(b){case BI.DynamicDateTimeSelect.HOUR:c=2;break;case BI.DynamicDateTimeSelect.MINUTE:c=5}return 1===d.length&&BI.parseInt(d)>c&&(d="0"+d),2===d.length&&(b===BI.DynamicDateTimeSelect.HOUR?this.minute.focus():this.second.focus()),d},_formatValueToDoubleDigit:function(a){(BI.isNull(a)||BI.isEmptyString(a))&&(a=0);var b=BI.parseInt(a);return b<10&&(b="0"+b),b},_assertValue:function(a){return a=a||{},a.hour=this._formatValueToDoubleDigit(a.hour)||"00",a.minute=this._formatValueToDoubleDigit(a.minute)||"00",a.second=this._formatValueToDoubleDigit(a.second)||"00",a},getValue:function(){return{hour:BI.parseInt(this.hour.getValue()),minute:BI.parseInt(this.minute.getValue()),second:BI.parseInt(this.second.getValue())}},setValue:function(a){a=this._assertValue(a),this.hour.setValue(a.hour),this.minute.setValue(a.minute),this.second.setValue(a.second),this._checkBorder(a)}}),BI.DynamicDateTimeSelect.EVENT_CONFIRM="EVENT_CONFIRM",BI.shortcut("bi.dynamic_date_time_select",BI.DynamicDateTimeSelect),BI.extend(BI.DynamicDateTimeSelect,{HOUR:1,MINUTE:2}),BI.DynamicDateTimeTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-time-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTimeTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Basic_Date_Time_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text")},title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.DynamicDateHelper.getCalculation(d),g=BI.print(f,"%Y-%x-%e %H:%M:%S");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day,d.hour||0,d.minute||0,d.second||0),"%Y-%X-%d %H:%M:%S")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split(/-|\s|:/);a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2],hour:0|c[3],minute:0|c[4],second:0|c[5]}}}a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d %H:%M:%S"),"%Y-%x-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d %H:%M:%S"),"%Y-%X-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e %H:%M:%S"),"%Y-%x-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e %H:%M:%S"),"%Y-%X-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e %H:%M:%S");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day,c.hour||0,c.minute||0,c.second||0),"%Y-%X-%d %H:%M:%S");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue},isValid:function(){return this.editor.isValid()}}),BI.DynamicDateTimeTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeTrigger.EVENT_START="EVENT_START",BI.DynamicDateTimeTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTimeTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_time_trigger",BI.DynamicDateTimeTrigger),BI.SearchEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-search-editor bi-border bi-focus-shadow",height:24,errorText:"",watermark:BI.i18nText("BI-Basic_Search"),validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){this.options.height-=2,BI.SearchEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,hgap:1,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"close-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.SearchEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:{type:"bi.icon_label",cls:"search-font"},width:24},{el:a.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SearchEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SearchEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SearchEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SearchEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SearchEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SearchEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SearchEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SearchEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.SearchEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.SearchEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SearchEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SearchEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SearchEditor.EVENT_STOP)}),this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},getKeywords:function(){var a=this.editor.getValue(),b=a.match(/[\S]+/g);return BI.isEndWithBlank(a)?b.concat([" "]):b},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isEditing:function(){return this.editor.isEditing()},isValid:function(){return this.editor.isValid()}}),BI.SearchEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SearchEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SearchEditor.EVENT_BLUR="EVENT_BLUR",BI.SearchEditor.EVENT_CLICK="EVENT_CLICK",BI.SearchEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SearchEditor.EVENT_SPACE="EVENT_SPACE",BI.SearchEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.SearchEditor.EVENT_CLEAR="EVENT_CLEAR",BI.SearchEditor.EVENT_START="EVENT_START",BI.SearchEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SearchEditor.EVENT_STOP="EVENT_STOP",BI.SearchEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SearchEditor.EVENT_VALID="EVENT_VALID",BI.SearchEditor.EVENT_ERROR="EVENT_ERROR",BI.SearchEditor.EVENT_ENTER="EVENT_ENTER",BI.SearchEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SearchEditor.EVENT_REMOVE="EVENT_REMOVE",BI.SearchEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.search_editor",BI.SearchEditor),BI.SmallSearchEditor=BI.inherit(BI.SearchEditor,{_defaultConfig:function(){var a=BI.SmallSearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-small-search-editor",height:24})},_init:function(){BI.SmallSearchEditor.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.small_search_editor",BI.SmallSearchEditor),BI.TextEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.TextEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{extraCls:"bi-text-editor bi-border",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:"",height:24})},_init:function(){BI.TextEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;BI.isNumber(b.height)&&this.element.css({height:b.height-2}),BI.isNumber(b.width)&&this.element.css({width:b.width-2}),this.editor=BI.createWidget({type:"bi.editor",height:b.height-2,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,title:b.title,tipType:b.tipType,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.TextEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.TextEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.TextEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.TextEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.TextEditor.EVENT_KEY_DOWN)}),this.editor.on(BI.Editor.EVENT_SPACE,function(b){a.fireEvent(BI.TextEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(b){a.fireEvent(BI.TextEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.TextEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.TextEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(b){a.fireEvent(BI.TextEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.TextEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.TextEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.TextEditor.EVENT_STOP)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.TextEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.TextEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.TextEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.TextEditor.EVENT_EMPTY)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]})},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isValid:function(){return this.editor.isValid()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()}}),BI.TextEditor.EVENT_CHANGE="EVENT_CHANGE",BI.TextEditor.EVENT_FOCUS="EVENT_FOCUS",BI.TextEditor.EVENT_BLUR="EVENT_BLUR",BI.TextEditor.EVENT_CLICK="EVENT_CLICK",BI.TextEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.TextEditor.EVENT_SPACE="EVENT_SPACE",BI.TextEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.TextEditor.EVENT_START="EVENT_START",BI.TextEditor.EVENT_PAUSE="EVENT_PAUSE",BI.TextEditor.EVENT_STOP="EVENT_STOP",BI.TextEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.TextEditor.EVENT_VALID="EVENT_VALID",BI.TextEditor.EVENT_ERROR="EVENT_ERROR",BI.TextEditor.EVENT_ENTER="EVENT_ENTER",BI.TextEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.TextEditor.EVENT_REMOVE="EVENT_REMOVE",BI.TextEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.text_editor",BI.TextEditor),BI.SmallTextEditor=BI.inherit(BI.TextEditor,{_defaultConfig:function(){var a=BI.SmallTextEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-small-text-editor",height:24})},_init:function(){BI.SmallTextEditor.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.small_text_editor",BI.SmallTextEditor),BI.IntervalSlider=BI.inherit(BI.Single,{_constant:{EDITOR_WIDTH:58,EDITOR_R_GAP:60,EDITOR_HEIGHT:30,SLIDER_WIDTH_HALF:15,SLIDER_WIDTH:30,SLIDER_HEIGHT:30,TRACK_HEIGHT:24},props:{baseCls:"bi-interval-slider bi-slider-track",digit:!1,unit:""},render:function(){var a=this,b=this._constant;return this.enable=!1,this.valueOne="",this.valueTwo="",this.calculation=new BI.AccurateCalculationModel,this.grayTrack=BI.createWidget({type:"bi.layout",cls:"gray-track",height:6}),this.blueTrack=BI.createWidget({type:"bi.layout",cls:"blue-track bi-high-light-background",height:6}),this.track=this._createTrackWrapper(),this.labelOne=BI.createWidget({type:"bi.sign_text_editor",cls:"slider-editor-button",text:this.options.unit,allowBlank:!1,width:b.EDITOR_WIDTH,validationChecker:function(b){return a._checkValidation(b)}}),this.labelOne.element.hover(function(){a.labelOne.element.removeClass("bi-border").addClass("bi-border")},function(){a.labelOne.element.removeClass("bi-border")}),this.labelOne.on(BI.Editor.EVENT_CONFIRM,function(){ diff --git a/dist/bundle.js b/dist/bundle.js index edeea7ac3..df97047f6 100644 --- a/dist/bundle.js +++ b/dist/bundle.js @@ -22,7 +22,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -30,10084 +30,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + /*--------------------------------------------------------------------------*/ - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + /** Used to generate unique IDs. */ + var idCounter = 0; - /*--------------------------------------------------------------------------*/ + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; + if (index < 0) { + return false; } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; } + } - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; } - return result; + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } } + return true; + } - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - while (++index < length) { - array[offset + index] = values[index]; + if (newValue === undefined) { + newValue = srcValue; } - return array; + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; + var isCommon = newValue === undefined; - if (initAccum && length) { - accumulator = array[++index]; + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); } - return false; - } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; + else { + seen = iteratee ? [] : result; } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { return -1; - } + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; } + var data = isBindKey ? undefined : getData(func); - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - array.sort(comparer); - while (length--) { - array[length] = array[length].value; + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; } - return array; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); + object = object.buffer; + other = other.buffer; - while (++index < n) { - result[index] = iteratee(index); + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; } - return result; - } + return true; - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } + case errorTag: + return object.name == other.name && object.message == other.message; - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; + case mapTag: + var convert = mapToArray; - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); + }); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); + case boolTag: + case dateTag: + return new Ctor(+object); - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } + case dataViewTag: + return cloneDataView(object, isDeep); - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; + case mapTag: + return new Ctor; - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } + case numberTag: + case stringTag: + return new Ctor(object); - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); + case regexpTag: + return cloneRegExp(object); - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } + case setTag: + return new Ctor; - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; + case symbolTag: + return cloneSymbol(object); } + } - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; }); - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); + }; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } - return this; + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; } - - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; } - - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { - return false; + if (isPrototype(value)) { + return !baseKeys(value).length; } - - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); } - /*------------------------------------------------------------------------*/ - - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; } - - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; - - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); - - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); - - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; - - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; }); - - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; - - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); }); - - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); - - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; + }; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); - - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); - LazyWrapper.prototype.compact = function() { - return this.filter(identity); - }; + /*------------------------------------------------------------------------*/ - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; }; - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); - }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; }; + }); - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; }; + }); - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); - }; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); }; + }); - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; - }; - }); + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); + } + return this.map(function(value) { + return baseInvoke(value, path, args); }); - - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); - - names.push({ 'name': methodName, 'func': lodashFunc }); - } + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; }); - - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; - - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; - - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; - - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } - - /*--------------------------------------------------------------------------*/ - - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; - - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; - } + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 基本函数 @@ -10675,6 +10711,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -10787,12 +10824,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - 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Date(c[0],c[1],c[2],c[3],c[4],c[5],c[6]);break;default:a=new Date}return BI.isNotNull(BI.timeZone)?a.getTime()-BI.timeZone-6e4*(new Date).getTimezoneOffset():a.getTime()}})}(),!function(){function a(){for(var a,b,c,d,e=arguments[0]||{},f=arguments.length,g=1;g0;)BI.prepares.shift()();var e,f;if(a||(a={}),BI.isWidget(c)?(d=c,c={}):c||(c={}),BI.isEmpty(a)&&BI.isEmpty(c))return BI.createWidget({type:"bi.layout"});if(BI.isWidget(a))return a;if(a.type||c.type)return e=BI.extend({},c,a),f=BI.Plugin.getWidget(e.type,e),f.type===e.type?BI.Plugin.getObject(e.type,b(f)):BI.createWidget(BI.extend({},a,{type:f.type},c));if(a.el&&(a.el.type||c.type))return e=BI.extend({},c,a.el),f=BI.Plugin.getWidget(e.type,e),f.type===e.type?BI.Plugin.getObject(e.type,b(f)):BI.createWidget(BI.extend({},a,{type:f.type},c));if(BI.isWidget(a.el))return a.el;throw new Error("无法根据item创建组件")}}(),!function(){function a(a){return function(b,c,d){var e,f=b[c];f&&f.target==b||(e=b[c]=function(){for(var a,b=e.before,c=arguments,d=b.length;d--;){if(a=b[d].advice.apply(this,c),a===!1)return!1;c=a||c}for(var f=e.method.apply(this,c),g=e.after,h=0,i=g.length;h127&&d<2048?(b+=String.fromCharCode(d>>6|192),b+=String.fromCharCode(63&d|128)):(b+=String.fromCharCode(d>>12|224),b+=String.fromCharCode(d>>6&63|128),b+=String.fromCharCode(63&d|128))}return b},c=function(a){for(var b="",c=0,d=0,e=0,f=0;c191&&d<224?(f=a.charCodeAt(c+1),b+=String.fromCharCode((31&d)<<6|63&f),c+=2):(f=a.charCodeAt(c+1),e=a.charCodeAt(c+2),b+=String.fromCharCode((15&d)<<12|(63&f)<<6|63&e),c+=3);return b};_.extend(BI,{encode:function(c){var d,e,f,g,h,i,j,k="",l=0;for(c=b(c);l>2,h=(3&d)<<4|e>>4,i=(15&e)<<2|f>>6,j=63&f,isNaN(e)?i=j=64:isNaN(f)&&(j=64),k=k+a.charAt(g)+a.charAt(h)+a.charAt(i)+a.charAt(j);return k},decode:function(b){var d,e,f,g,h,i,j,k="",l=0;for(b=b.replace(/[^A-Za-z0-9\+\/\=]/g,"");l>4,e=(15&h)<<4|i>>2,f=(3&i)<<6|j,k+=String.fromCharCode(d),64!=i&&(k+=String.fromCharCode(e)),64!=j&&(k+=String.fromCharCode(f));return k=c(k)}})}(),BI.Cache={_prefix:"bi",setUsername:function(a){localStorage.setItem(BI.Cache._prefix+".username",(a+""||"").toUpperCase())},getUsername:function(){return localStorage.getItem(BI.Cache._prefix+".username")||""},_getKeyPrefix:function(){return BI.Cache.getUsername()+"."+BI.Cache._prefix+"."},_generateKey:function(a){return BI.Cache._getKeyPrefix()+(a||"")},getItem:function(a){return localStorage.getItem(BI.Cache._generateKey(a))},setItem:function(a,b){localStorage.setItem(BI.Cache._generateKey(a),b)},removeItem:function(a){localStorage.removeItem(BI.Cache._generateKey(a))},clear:function(){for(var a=localStorage.length;a>=0;a--){var b=localStorage.key(a);b&&0===b.indexOf(BI.Cache._getKeyPrefix())&&localStorage.removeItem(b)}},keys:function(){for(var a=[],b=localStorage.length;b>=0;b--){var c=localStorage.key(b);if(c){var d=BI.Cache._getKeyPrefix();0===c.indexOf(d)&&(a[a.length]=c.substring(d.length))}}return a},addCookie:function(a,b,c,d){var e=a+"="+escape(b);if(d&&d>0){var f=new Date;f.setTime(BI.getTime()+3600*d*1e3),e=e+"; expires="+f.toGMTString()}c&&(e=e+"; path="+c),document.cookie=e},getCookie:function(a){var b,c=new RegExp("(^| )"+a+"=([^;]*)(;|$)");return(b=document.cookie.match(c))?unescape(b[2]):null},deleteCookie:function(a,b){var c=new Date;c.setTime(BI.getTime()-1e4);var d=a+"=v; expires="+c.toGMTString();b&&(d=d+"; path="+b),document.cookie=d}},BI.CellSizeAndPositionManager=function(a,b,c){this._cellSizeGetter=b,this._cellCount=a,this._estimatedCellSize=c,this._cellSizeAndPositionData={},this._lastMeasuredIndex=-1},BI.CellSizeAndPositionManager.prototype={constructor:BI.CellSizeAndPositionManager,configure:function(a,b){this._cellCount=a,this._estimatedCellSize=b},getCellCount:function(){return this._cellCount},getEstimatedCellSize:function(){return this._estimatedCellSize},getLastMeasuredIndex:function(){return this._lastMeasuredIndex},getSizeAndPositionOfCell:function(a){if(!(a<0||a>=this._cellCount)){if(a>this._lastMeasuredIndex){for(var b=this.getSizeAndPositionOfLastMeasuredCell(),c=b.offset+b.size,d=this._lastMeasuredIndex+1;d<=a;d++){var e=this._cellSizeGetter(d);null==e||isNaN(e)||(this._cellSizeAndPositionData[d]={offset:c,size:e},c+=e)}this._lastMeasuredIndex=a}return this._cellSizeAndPositionData[a]}},getSizeAndPositionOfLastMeasuredCell:function(){return this._lastMeasuredIndex>=0?this._cellSizeAndPositionData[this._lastMeasuredIndex]:{offset:0,size:0}},getTotalSize:function(){var a=this.getSizeAndPositionOfLastMeasuredCell();return a.offset+a.size+(this._cellCount-this._lastMeasuredIndex-1)*this._estimatedCellSize},getUpdatedOffsetForIndex:function(a,b,c,d){var e,f=this.getSizeAndPositionOfCell(d),g=f.offset,h=g-b+f.size;switch(a){case"start":e=g;break;case"end":e=h;break;case"center":e=g-(b-f.size)/2;break;default:e=Math.max(h,Math.min(g,c))}var i=this.getTotalSize();return Math.max(0,Math.min(i-b,e))},getVisibleCellRange:function(a,b){var c=this.getTotalSize();if(0===c)return{};var d=b+a,e=this._findNearestCell(b),f=this.getSizeAndPositionOfCell(e);b=f.offset+f.size;for(var g=e;bc&&(a=d-1)}if(b>0)return b-1},_exponentialSearch:function(a,b){for(var c=1;a=a?this._binarySearch(c,0,a):this._exponentialSearch(c,a)}}},BI.ScalingCellSizeAndPositionManager=function(a,b,c,d){this._cellSizeAndPositionManager=new BI.CellSizeAndPositionManager(a,b,c),this._maxScrollSize=d||1e7},BI.ScalingCellSizeAndPositionManager.prototype={constructor:BI.ScalingCellSizeAndPositionManager,configure:function(){this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager,arguments)},getCellCount:function(){return this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDO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this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDOMZBLZWPDWYYGDSTTHCSQSCCRSSSYSLFYBFNTYJSZDFNDPDHDZZMBBLSLCMYFFGTJJQWFTMTPJWFNLBZCMMJTGBDZLQLPYFHYYMJYLSDCHDZJWJCCTLJCLDTLJJCPDDSQDSSZYBNDBJLGGJZXSXNLYCYBJXQYCBYLZCFZPPGKCXZDZFZTJJFJSJXZBNZYJQTTYJYHTYCZHYMDJXTTMPXSPLZCDWSLSHXYPZGTFMLCJTYCBPMGDKWYCYZCDSZZYHFLYCTYGWHKJYYLSJCXGYWJCBLLCSNDDBTZBSCLYZCZZSSQDLLMQYYHFSLQLLXFTYHABXGWNYWYYPLLSDLDLLBJCYXJZMLHLJDXYYQYTDLLLBUGBFDFBBQJZZMDPJHGCLGMJJPGAEHHBWCQXAXHHHZCHXYPHJAXHLPHJPGPZJQCQZGJJZZUZDMQYYBZZPHYHYBWHAZYJHYKFGDPFQSDLZMLJXKXGALXZDAGLMDGXMWZQYXXDXXPFDMMSSYMPFMDMMKXKSYZYSHDZKXSYSMMZZZMSYDNZZCZXFPLSTMZDNMXCKJMZTYYMZMZZMSXHHDCZJEMXXKLJSTLWLSQLYJZLLZJSSDPPMHNLZJCZYHMXXHGZCJMDHXTKGRMXFWMCGMWKDTKSXQMMMFZZYDKMSCLCMPCGMHSPXQPZDSSLCXKYXTWLWJYAHZJGZQMCSNXYYMMPMLKJXMHLMLQMXCTKZMJQYSZJSYSZHSYJZJCDAJZYBSDQJZGWZQQXFKDMSDJLFWEHKZQKJPEYPZYSZCDWYJFFMZZYLTTDZZEFMZLBNPPLPLPEPSZALLTYLKCKQZKGENQLWAGYXYDPXLHSXQQWQCQXQCLHYXXMLYCCWLYMQYSKGCHLCJNSZKPYZKCQZQLJPDMDZHLASXLBYDWQLWDNBQCRYDDZTJYBKBWSZDXDTNPJDTCTQDFXQQMGNXECLTTBKPWSLCTYQLPWYZZKLPYGZCQQPLLKCCYLPQMZCZQCLJSLQZDJXLDDHPZQDLJJXZQDXYZQKZLJCYQDYJPPYPQYKJYRMPCBYMCXKLLZLLFQPYLLLMBSGLCYSSLRSYSQTMXYXZQZFDZUYSYZTFFMZZSMZQHZSSCCMLYXWTPZGXZJGZGSJSGKDDHTQGGZLLBJDZLCBCHYXYZHZFYWXYZYMSDBZZYJGTSMTFXQYXQSTDGSLNXDLRYZZLRYYLXQHTXSRTZNGZXBNQQZFMYKMZJBZYMKBPNLYZPBLMCNQYZZZSJZHJCTZKHYZZJRDYZHNPXGLFZTLKGJTCTSSYLLGZRZBBQZZKLPKLCZYSSUYXBJFPNJZZXCDWXZYJXZZDJJKGGRSRJKMSMZJLSJYWQSKYHQJSXPJZZZLSNSHRNYPZTWCHKLPSRZLZXYJQXQKYSJYCZTLQZYBBYBWZPQDWWYZCYTJCJXCKCWDKKZXSGKDZXWWYYJQYYTCYTDLLXWKCZKKLCCLZCQQDZLQLCSFQCHQHSFSMQZZLNBJJZBSJHTSZDYSJQJPDLZCDCWJKJZZLPYCGMZWDJJBSJQZSYZYHHXJPBJYDSSXDZNCGLQMBTSFSBPDZDLZNFGFJGFSMPXJQLMBLGQCYYXBQKDJJQYRFKZTJDHCZKLBSDZCFJTPLLJGXHYXZCSSZZXSTJYGKGCKGYOQXJPLZPBPGTGYJZGHZQZZLBJLSQFZGKQQJZGYCZBZQTLDXRJXBSXXPZXHYZYCLWDXJJHXMFDZPFZHQHQMQGKSLYHTYCGFRZGNQXCLPDLBZCSCZQLLJBLHBZCYPZZPPDYMZZSGYHCKCPZJGSLJLNSCDSLDLXBMSTLDDFJMKDJDHZLZXLSZQPQPGJLLYBDSZGQLBZLSLKYYHZTTNTJYQTZZPSZQZTLLJTYYLLQLLQYZQLBDZLSLYYZYMDFSZSNHLXZNCZQZPBWSKRFBSYZMTHBLGJPMCZZLSTLXSHTCSYZLZBLFEQHLXFLCJLYLJQCBZLZJHHSSTBRMHXZHJZCLXFNBGXGTQJCZTMSFZKJMSSNXLJKBHSJXNTNLZDNTLMSJXGZJYJCZXYJYJWRWWQNZTNFJSZPZSHZJFYRDJSFSZJZBJFZQZZHZLXFYSBZQLZSGYFTZDCSZXZJBQMSZKJRHYJZCKMJKHCHGTXKXQGLXPXFXTRTYLXJXHDTSJXHJZJXZWZLCQSBTXWXGXTXXHXFTSDKFJHZYJFJXRZSDLLLTQSQQZQWZXSYQTWGWBZCGZLLYZBCLMQQTZHZXZXLJFRMYZFLXYSQXXJKXRMQDZDMMYYBSQBHGZMWFWXGMXLZPYYTGZYCCDXYZXYWGSYJYZNBHPZJSQSYXSXRTFYZGRHZTXSZZTHCBFCLSYXZLZQMZLMPLMXZJXSFLBYZMYQHXJSXRXSQZZZSSLYFRCZJRCRXHHZXQYDYHXSJJHZCXZBTYNSYSXJBQLPXZQPYMLXZKYXLXCJLCYSXXZZLXDLLLJJYHZXGYJWKJRWYHCPSGNRZLFZWFZZNSXGXFLZSXZZZBFCSYJDBRJKRDHHGXJLJJTGXJXXSTJTJXLYXQFCSGSWMSBCTLQZZWLZZKXJMLTMJYHSDDBXGZHDLBMYJFRZFSGCLYJBPMLYSMSXLSZJQQHJZFXGFQFQBPXZGYYQXGZTCQWYLTLGWSGWHRLFSFGZJMGMGBGTJFSYZZGZYZAFLSSPMLPFLCWBJZCLJJMZLPJJLYMQDMYYYFBGYGYZMLYZDXQYXRQQQHSYYYQXYLJTYXFSFSLLGNQCYHYCWFHCCCFXPYLYPLLZYXXXXXKQHHXSHJZCFZSCZJXCPZWHHHHHAPYLQALPQAFYHXDYLUKMZQGGGDDESRNNZLTZGCHYPPYSQJJHCLLJTOLNJPZLJLHYMHEYDYDSQYCDDHGZUNDZCLZYZLLZNTNYZGSLHSLPJJBDGWXPCDUTJCKLKCLWKLLCASSTKZZDNQNTTLYYZSSYSSZZRYLJQKCQDHHCRXRZYDGRGCWCGZQFFFPPJFZYNAKRGYWYQPQXXFKJTSZZXSWZDDFBBXTBGTZKZNPZZPZXZPJSZBMQHKCYXYLDKLJNYPKYGHGDZJXXEAHPNZKZTZCMXCXMMJXNKSZQNMNLWBWWXJKYHCPSTMCSQTZJYXTPCTPDTNNPGLLLZSJLSPBLPLQHDTNJNLYYRSZFFJFQWDPHZDWMRZCCLODAXNSSNYZRESTYJWJYJDBCFXNMWTTBYLWSTSZGYBLJPXGLBOCLHPCBJLTMXZLJYLZXCLTPNCLCKXTPZJSWCYXSFYSZDKNTLBYJCYJLLSTGQCBXRYZXBXKLYLHZLQZLNZCXWJZLJZJNCJHXMNZZGJZZXTZJXYCYYCXXJYYXJJXSSSJSTSSTTPPGQTCSXWZDCSYFPTFBFHFBBLZJCLZZDBXGCXLQPXKFZFLSYLTUWBMQJHSZBMDDBCYSCCLDXYCDDQLYJJWMQLLCSGLJJSYFPYYCCYLTJANTJJPWYCMMGQYYSXDXQMZHSZXPFTWWZQSWQRFKJLZJQQYFBRXJHHFWJJZYQAZMYFRHCYYBYQWLPEXCCZSTYRLTTDMQLYKMBBGMYYJPRKZNPBSXYXBHYZDJDNGHPMFSGMWFZMFQMMBCMZZCJJLCNUXYQLMLRYGQZCYXZLWJGCJCGGMCJNFYZZJHYCPRRCMTZQZXHFQGTJXCCJEAQCRJYHPLQLSZDJRBCQHQDYRHYLYXJSYMHZYDWLDFRYHBPYDTSSCNWBXGLPZMLZZTQSSCPJMXXYCSJYTYCGHYCJWYRXXLFEMWJNMKLLSWTXHYYYNCMMCWJDQDJZGLLJWJRKHPZGGFLCCSCZMCBLTBHBQJXQDSPDJZZGHGLFQYWBZYZJLTSTDHQHCTCBCHFLQMPWDSHYYTQWCNZZJTLBYMBPDYYYXSQKXWYYFLXXNCWCXYPMAELYKKJMZZZBRXYYQJFLJPFHHHYTZZXSGQQMHSPGDZQWBWPJHZJDYSCQWZKTXXSQLZYYMYSDZGRXCKKUJLWPYSYSCSYZLRMLQSYLJXBCXTLWDQZPCYCYKPPPNSXFYZJJRCEMHSZMSXLXGLRWGCSTLRSXBZGBZGZTCPLUJLSLYLYMTXMTZPALZXPXJTJWTCYYZLBLXBZLQMYLXPGHDSLSSDMXMBDZZSXWHAMLCZCPJMCNHJYSNSYGCHSKQMZZQDLLKABLWJXSFMOCDXJRRLYQZKJMYBYQLYHETFJZFRFKSRYXFJTWDSXXSYSQJYSLYXWJHSNLXYYXHBHAWHHJZXWMYLJCSSLKYDZTXBZSYFDXGXZJKHSXXYBSSXDPYNZWRPTQZCZENYGCXQFJYKJBZMLJCMQQXUOXSLYXXLYLLJDZBTYMHPFSTTQQWLHOKYBLZZALZXQLHZWRRQHLSTMYPYXJJXMQSJFNBXYXYJXXYQYLTHYLQYFMLKLJTMLLHSZWKZHLJMLHLJKLJSTLQXYLMBHHLNLZXQJHXCFXXLHYHJJGBYZZKBXSCQDJQDSUJZYYHZHHMGSXCSYMXFEBCQWWRBPYYJQTYZCYQYQQZYHMWFFHGZFRJFCDPXNTQYZPDYKHJLFRZXPPXZDBBGZQSTLGDGYLCQMLCHHMFYWLZYXKJLYPQHSYWMQQGQZMLZJNSQXJQSYJYCBEHSXFSZPXZWFLLBCYYJDYTDTHWZSFJMQQYJLMQXXLLDTTKHHYBFPWTYYSQQWNQWLGWDEBZWCMYGCULKJXTMXMYJSXHYBRWFYMWFRXYQMXYSZTZZTFYKMLDHQDXWYYNLCRYJBLPSXCXYWLSPRRJWXHQYPHTYDNXHHMMYWYTZCSQMTSSCCDALWZTCPQPYJLLQZYJSWXMZZMMYLMXCLMXCZMXMZSQTZPPQQBLPGXQZHFLJJHYTJSRXWZXSCCDLXTYJDCQJXSLQYCLZXLZZXMXQRJMHRHZJBHMFLJLMLCLQNLDXZLLLPYPSYJYSXCQQDCMQJZZXHNPNXZMEKMXHYKYQLXSXTXJYYHWDCWDZHQYYBGYBCYSCFGPSJNZDYZZJZXRZRQJJYMCANYRJTLDPPYZBSTJK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BI.first(this.children)},getLastChild:function(){return BI.last(this.children)},setLeft:function(a){this.left=a},getLeft:function(){return this.left},setRight:function(a){this.right=a},getRight:function(){return this.right},setParent:function(a){this.parent=a},getParent:function(){return this.parent},getChild:function(a){return this.children[a]},getChildIndex:function(a){return BI.findIndex(this.children,function(b,c){return c.get("id")===a})},removeChild:function(a){this.removeChildByIndex(this.getChildIndex(a))},removeChildByIndex:function(a){var b=this.getChild(a-1),c=this.getChild(a+1);null!=b&&b.setRight(c||null),null!=c&&c.setLeft(b||null),this.children.splice(a,1)},removeAllChilds:function(){this.children=[]},addChild:function(a,b){var c=null;c=BI.isUndefined(b)?this.children.length-1:b-1,a.setParent(this),c>=0&&(this.getChild(c)&&this.getChild(c).setRight(a),a.setLeft(this.getChild(c))),BI.isUndefined(b)?this.children.push(a):this.children.splice(b,0,a)},equals:function(a){return this===a||this.id===a.id},clear:function(){this.parent=null,this.left=null,this.right=null,this.children=[]}},BI.extend(BI.Tree,{transformToArrayFormat:function(a,b){if(!a)return[];var c=[];if(BI.isArray(a))for(var d=0,e=a.length;d=this.x&&a<=this.x+this.w&&b>=this.y&&b<=this.y+this.h)},getPosition:function(){var a=[];return a.push(this.x+this.w/2),a.push(this.y+this.h/2),a}},BI.BehaviorFactory={createBehavior:function(a,b){var c;switch(a){case"highlight":c=BI.HighlightBehavior;break;case"redmark":c=BI.RedMarkBehavior}return new c(b)}},BI.Behavior=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.Behavior.superclass._defaultConfig.apply(this,arguments),{rule:function(){return!0}})},_init:function(){BI.Behavior.superclass._init.apply(this,arguments)},doBehavior:function(){}}),BI.Layout=BI.inherit(BI.Widget,{props:function(){return{scrollable:null,scrollx:!1,scrolly:!1,items:[]}},render:function(){this._init4Margin(),this._init4Scroll()},_init4Margin:function(){this.options.top&&this.element.css("top",this.options.top),this.options.left&&this.element.css("left",this.options.left),this.options.bottom&&this.element.css("bottom",this.options.bottom),this.options.right&&this.element.css("right",this.options.right)},_init4Scroll:function(){switch(this.options.scrollable){case!0:this.element.css("overflow","auto");break;case!1:this.element.css("overflow","hidden")}this.options.scrollx&&this.element.css({"overflow-x":"auto","overflow-y":"hidden"}),this.options.scrolly&&this.element.css({"overflow-x":"hidden","overflow-y":"auto"})},appendFragment:function(a){this.element.append(a)},_mountChildren:function(){var a=this,b=BI.Widget._renderEngine.createFragment(),c=!1;BI.each(this._children,function(d,e){e.element!==a.element&&(b.appendChild(e.element[0]),c=!0)}),c===!0&&this.appendFragment(b)},_getChildName:function(a){return a+""},_addElement:function(a,b){var c,d=this;return this.hasWidget(this._getChildName(a))?c=this.getWidgetByName(this._getChildName(a)):(c=BI.createWidget(b),c.on(BI.Events.DESTROY,function(){BI.each(d._children,function(a,b){b===c&&(BI.remove(d._children,b),d.removeItemAt(0|a))})}),this.addWidget(this._getChildName(a),c)),c},_getOptions:function(a){return a instanceof BI.Widget&&(a=a.options),a=BI.stripEL(a),a instanceof BI.Widget&&(a=a.options),a},_compare:function(a,b){function c(a,b,e,f){if(a===b)return 0!==a||1/a===1/b;if(null==a||null==b)return a===b;var g=Object.prototype.toString.call(a);switch(g){case"[object RegExp]":case"[object String]":return""+a==""+b;case"[object Number]":return+a!==+a?+b!==+b:0===+a?1/+a===1/b:+a===+b;case"[object Date]":case"[object 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a>0?this._children[this._getChildName(a-1)].element.after(c.element):c.element.prependTo(this._getWrapper()),c._mount(),c}},removeItemAt:function(a){a=BI.isArray(a)?a:[a];for(var b=[],c=[],d={},e=0,f=this.options.items.length;ethis.options.items.length-1)return!1;var c=this._children[this._getChildName(a)];return c.shouldUpdate?c.shouldUpdate(this._getOptions(b))===!0:null},updateItemAt:function(a,b){if(!(a<0||a>this.options.items.length-1)){var c,d=this._children[this._getChildName(a)];if(c=d.update(this._getOptions(b)))return c;var e=this._children[this._getChildName(a)];delete this._children[this._getChildName(a)],this.options.items.splice(a,1);var f=this._addElement(a,b);this.options.items.splice(a,0,b),this._children[this._getChildName(a)]=f,a>0?this._children[this._getChildName(a-1)].element.after(f.element):f.element.prependTo(this._getWrapper()),e._destroy(),f._mount()}},addItems:function(a){var b=this,c=this.options,d=BI.Widget._renderEngine.createFragment(),e=[];BI.each(a,function(a,f){var g=b._addElement(c.items.length,f);b._children[b._getChildName(c.items.length)]=g,c.items.push(f),e.push(g),d.appendChild(g.element[0])}),this._isMounted&&(this._getWrapper().append(d),BI.each(e,function(a,b){b._mount()}))},prependItems:function(a){var b=this;a=a||[];for(var c=BI.Widget._renderEngine.createFragment(),d=[],e=a.length-1;e>=0;e--){this._addItemAt(0,a[e]);var f=this._addElement(0,a[e]);b._children[b._getChildName(0)]=f,this.options.items.unshift(a[e]),d.push(f),c.appendChild(f.element[0])}this._isMounted&&(this._getWrapper().prepend(c),BI.each(d,function(a,b){b._mount()}))},getValue:function(){var a,b=this,c=[];return BI.each(this.options.items,function(d){if(a=b._children[b._getChildName(d)]){var e=a.getValue();e=BI.isArray(e)?e:[e],c=c.concat(e)}}),c},setValue:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setValue(a)})},setText:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setText(a)})},patchItem:function(a,b,c){var d=this.shouldUpdateItem(c,b);if(d===!0||null===d&&!this._compare(a,b))return this.updateItemAt(c,b)},updateChildren:function(a,b){function c(a,b,c,d){return a=j._getOptions(a),b=j._getOptions(b),BI.isKey(a.key)?a.key===b.key:c>=0?c===d:void 0}function d(a,b){var c=j._getOptions(a),d=null==c.key?j._getChildName(b):c.key;return s[d]=j._addElement(d,a)}function e(a,b,c,e){for(;c<=e;++c){var f=d(b[c],c);g(f,a,!1,c)}}function f(a,b,c){for(;b<=c;++b){var d=j._getOptions(a[b]),e=null==d.key?j._getChildName(b):d.key;s[e]._destroy()}}function g(a,b,c,d){a=j._getOptions(a),b=b&&j._getOptions(b);var e=BI.isKey(a.key)?a.key:j._getChildName(d);if(b&&s[b.key]){var f,g=BI.isKey(b.key)?b.key:j._getChildName(d);f=c?s[g].element.next():s[g].element,f.length>0?f.before(s[e].element):j._getWrapper().append(s[e].element)}else j._getWrapper().append(s[e].element)}var h,i,j=this,k=0,l=0,m=a.length-1,n=a[0],o=a[m],p=b.length-1,q=b[0],r=b[p],s={};for(BI.each(a,function(a,b){b=j._getOptions(b);var c=null==b.key?a:b.key;BI.isKey(c)&&(s[c]=j._children[j._getChildName(a)])});k<=m&&l<=p;)if(BI.isNull(n))n=a[++k];else if(BI.isNull(o))o=a[--m];else if(c(n,q,k,l))i=this.patchItem(n,q,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],n=a[++k],q=b[++l];else if(c(o,r,m,p))i=this.patchItem(o,r,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],o=a[--m],r=b[--p];else if(c(n,r))i=this.patchItem(n,r,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],g(n,o,!0),n=a[++k],r=b[--p];else if(c(o,q))i=this.patchItem(o,q,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],g(o,n),o=a[--m],q=b[++l];else{var t=d(q);g(t,n),q=b[++l]}return k>m?(h=BI.isNull(b[p+1])?null:b[p+1],e(h,b,l,p)):l>p&&f(a,k,m),this._children={},BI.each(b,function(a,b){var c=j._getOptions(b),d=null==c.key?j._getChildName(a):c.key;s[d]._mount(),j._children[j._getChildName(a)]=s[d]}),i},update:function(a){var b=this.options,c=a.items||[],d=this.updateChildren(b.items,c);return this.options.items=c,d},stroke:function(a){var b=this;BI.each(a,function(a,c){c&&b._addElement(a,c)})},removeWidget:function(a){var b;BI.isWidget(a)?BI.each(this._children,function(c,d){d===a&&(b=c)}):b=a,b&&this._removeItemAt(0|b)},empty:function(){BI.Layout.superclass.empty.apply(this,arguments),this.options.items=[]},destroy:function(){BI.Layout.superclass.destroy.apply(this,arguments),this.options.items=[]},populate:function(a){this.options;return a=a||[],this._isMounted?void 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BI.extend(BI.Action.superclass._defaultConfig.apply(this,arguments),{src:null,tar:null})},_init:function(){BI.Action.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){}, actionBack:function(a,b,c){}}),BI.ActionFactory={createAction:function(a,b){var c;switch(a){case"show":c=BI.ShowAction}return new c(b)}},BI.ShowAction=BI.inherit(BI.Action,{_defaultConfig:function(){return BI.extend(BI.ShowAction.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.ShowAction.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){b=b||this.options.tar,b.setVisible(!0),c&&c()},actionBack:function(a,b,c){a=a||this.options.tar,a.setVisible(!1),c&&c()}}),function(){function isEmpty(a){var b=""===a||null===a||void 0===a;return b}function isInvalidDate(a){return"Invalid Date"==a||"NaN"==a}function _eFormat(a,b){function c(a,b){var c=a<0?(a*=-1,"-"):"",h="",i=a>0&&a<1?"floor":"ceil",j=Math[i](Math.log(a)/Math.log(10));if(!isFinite(j))return 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self?self:this,_global.BI||(_global.BI={}),BI.cjkEncode=function(a){if("string"!=typeof a)return a;for(var b="",c=0;c=128||91===d||93===d?"["+d.toString(16)+"]":a.charAt(c)}return b},BI.cjkDecode=function(text){if(null==text)return"";if(!isNaN(text)||text.indexOf("[")==-1)return text;for(var newText="",i=0;ii+1){var subText=text.substring(i+1,rightIdx);subText.length>0&&(ch=String.fromCharCode(eval("0x"+subText))),i=rightIdx}}newText+=ch}return newText},BI.htmlEncode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/\"/g,""").replace(//g,">").replace(/\s/g," ")},BI.htmlDecode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/"/g,'"').replace(/</g,"<").replace(/>/g,">").replace(/ /g," ")},BI.cjkEncodeDO=function(a){if(BI.isPlainObject(a)){var b={};return _.each(a,function(a,c){"string"!=typeof a&&(a=BI.jsonEncode(a)),c=BI.cjkEncode(c),b[c]=BI.cjkEncode(a)}),b}return a},BI.jsonEncode=function(a){var b=!!{}.hasOwnProperty,c={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},d=function(a){return/["\\\x00-\x1f]/.test(a)?'"'+a.replace(/([\x00-\x1f\\"])/g,function(a,b){var d=c[b];return d?d:(d=b.charCodeAt(),"\\u00"+Math.floor(d/16).toString(16)+(d%16).toString(16))})+'"':'"'+a+'"'},e=function(a){var b,c,d,e=["["],f=a.length;for(c=0;c2?BI.Date._MN[b.getMonth()]:d<2?b.getMonth()+1:BI.leftPad(b.getMonth()+1+"",2,"0");break;case"d":c=d>1?BI.leftPad(b.getDate()+"",2,"0"):b.getDate();break;case"h":var f=b.getHours()%12;0===f&&(f=12),c=d>1?BI.leftPad(f+"",2,"0"):f;break;case"H":c=d>1?BI.leftPad(b.getHours()+"",2,"0"):b.getHours();break;case"m":c=d>1?BI.leftPad(b.getMinutes()+"",2,"0"):b.getMinutes();break;case"s":c=d>1?BI.leftPad(b.getSeconds()+"",2,"0"):b.getSeconds();break;case"a":c=b.getHours()<12?"am":"pm";break;case"z":c=BI.getTimezone(b);break;default:c=a.str}return c}if(!a)return"";var d=b.length,e="";if(d>0){for(var f=b.charAt(0),g=0,h=f,i=1;iBI.Widget._renderEngine.createElement("body").outerWidth()&&(l-=k.element.outerWidth()+15),m+k.element.outerHeight()>BI.Widget._renderEngine.createElement("body").outerHeight()?(m-=k.element.outerHeight()+15,!f.belowMouse&&(m=Math.min(m,h.top-k.element.outerHeight()-5))):!f.belowMouse&&(m=Math.max(m,j)),k.element.css({left:l<0?0:l+"px",top:m<0?0:m+"px"}),k.element.hover(function(){g.remove(b),e.element.trigger("mouseleave.title"+e.getName())}),this},add:function(a,b){return this.has(a)?this:(this.set(a,b),this)},get:function(a){return this.tooltipsManager[a]},set:function(a,b){this.tooltipsManager[a]=b},has:function(a){return null!=this.tooltipsManager[a]},remove:function(a){return this.has(a)?(this.tooltipsManager[a].destroy(),delete this.tooltipsManager[a],this):this}}),_.extend(BI,{Events:{KEYDOWN:"_KEYDOWN",BACKSPACE:"_BACKSPACE",SPACE:"_SPACE",ENTER:"_ENTER",CONFIRM:"_CONFIRM",ERROR:"_ERROR",PAUSE:"_PAUSE",DESTROY:"_DESTROY",UNMOUNT:"_UNMOUNT",CLEAR:"_CLEAR",ADD:"_ADD",EDITING:"_EDITING",EMPTY:"_EMPTY",VIEW:"_VIEW",RESIZE:"_RESIZE",BEFOREEDIT:"_BEFOREEDIT",AFTEREDIT:"_AFTEREDIT",STARTEDIT:"_STARTEDIT",STOPEDIT:"_STOPEDIT",CHANGE:"_CHANGE",EXPAND:"_EXPAND",COLLAPSE:"_COLLAPSE",CALLBACK:"_CALLBACK",CLICK:"_CLICK",STATECHANGE:"_STATECHANGE",BEFORESTATECHANGE:"_BEFORESTATECHANGE",INIT:"_INIT",AFTERINIT:"_AFTERINIT",SCROLL:"_SCROLL",STARTLOAD:"_STARTLOAD",AFTERLOAD:"_AFTERLOAD",BS:"beforesubmit",AS:"aftersubmit",SC:"submitcomplete",SF:"submitfailure",SS:"submitsuccess",BVW:"beforeverifywrite",AVW:"afterverifywrite",AV:"afterverify",BW:"beforewrite",AW:"afterwrite",WS:"writesuccess",WF:"writefailure",BA:"beforeappend",AA:"afterappend",BD:"beforedelete",AD:"beforedelete",UC:"unloadcheck",BTOPDF:"beforetopdf",ATOPDF:"aftertopdf",BTOEXCEL:"beforetoexcel",ATOEXCEL:"aftertoexcel",BTOWORD:"beforetoword",ATOWORD:"aftertoword",BTOIMAGE:"beforetoimage",ATOIMAGE:"aftertoimage",BTOHTML:"beforetohtml",ATOHTML:"aftertohtml",BIMEXCEL:"beforeimportexcel",AIMEXCEL:"afterimportexcel",BPDFPRINT:"beforepdfprint",APDFPRINT:"afterpdfprint",BFLASHPRINT:"beforeflashprint",AFLASHPRINT:"afterflashprint",BAPPLETPRINT:"beforeappletprint",AAPPLETPRINT:"afterappletprint",BSEVERPRINT:"beforeserverprint",ASERVERPRINT:"afterserverprint",BEMAIL:"beforeemail",AEMAIL:"afteremail"}}),_.extend(BI,{pushArray:function(a,b){for(var c=0;ce&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+3*parseInt(b)),c},getQuarterStartMonth:function(a){var b=0,c=a.getMonth();return c<3&&(b=0),28&&(b=9),b},getQuarterStartDate:function(a){return BI.getDate(a.getFullYear(),BI.getQuarterStartMonth(a),1)},getQuarterEndDate:function(a){var b=BI.getQuarterStartMonth(a)+2;return BI.getDate(a.getFullYear(),b,BI.getMonthDays(a,b))},getOffsetMonth:function(a,b){var c=BI.getDate(BI.getTime(a.getFullYear(),a.getMonth(),a.getDate(),a.getHours(),a.getMinutes(),a.getSeconds())),d=c.getDate(),e=BI.getMonthDays(BI.getDate(c.getFullYear(),c.getMonth()+parseInt(b),1));return d>e&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+parseInt(b)),c},getWeekStartDate:function(a){var b=a.getDay(),c=BI.StartOfWeek%7;return BI.getOffsetDate(a,BI.Date._OFFSET[b=12,m=l?k-12:k,n=BI.getDayOfYear(a);0==m&&(m=12);var 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g={},h=[];BI.action=function(a,b){return BI.isFunction(a)?(h.push(a),function(){BI.remove(h,function(a){return h.indexOf(b)===a})}):(g[a]||(g[a]=[]),g[a].push(b),function(){BI.remove(g[a],function(c){return g[a].indexOf(b)===c}),0===g[a].length&&delete g[a]})};var i={};BI.point=function(a,b,c,d){i[a]||(i[a]={}),i[a][b]||(i[a][b]={}),i[a][b][d?"after":"before"]||(i[a][b][d?"after":"before"]=[]),i[a][b][d?"after":"before"].push(c)},BI.Modules={getModule:function(b){return a[b]?a[b]:(_global.console&&console.error("module:["+b+"] does not exists"),!1)}},BI.Constants={getConstant:function(a){return b[a]}};var j=function(a,b){if(i[b])for(var c in i[b]){var d=i[b][c].before;d&&BI.aspect.before(a,c,function(b){return function(){for(var c=0,d=b.length;c1?d.toString():d[0]:d,BI.isNull(d))throw new Error("value cannot be null");var f=b.cardNameCreator(d);if(!b.cardLayout.isCardExisted(f)){var g=b.cardCreator(f);b.cardLayout.addCardByName(f,g),b.afterCardCreated(f)}b.cardLayout.showCardByName(f),BI.nextTick(function(){b.afterCardShow(f),a.fireEvent(BI.ShowListener.EVENT_CHANGE,f)})}})}}),BI.ShowListener.EVENT_CHANGE="ShowListener.EVENT_CHANGE",BI.StyleLoaderManager=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.StyleLoaderManager.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.StyleLoaderManager.superclass._init.apply(this,arguments),this.stylesManager={}},loadStyle:function(a,b){if(_global.document){var c=document,d=c.createElement("style");return c.getElementsByTagName("head")[0].appendChild(d),d.setAttribute("type","text/css"),d.styleSheet?d.styleSheet.cssText=b:d.appendChild(document.createTextNode(b)),this.stylesManager[a]=d,this}},get:function(a){return this.stylesManager[a]},has:function(a){return null!=this.stylesManager[a]},removeStyle:function(a){return this.has(a)?(this.stylesManager[a].parentNode.removeChild(this.stylesManager[a]),delete this.stylesManager[a],this):this}}),BI.Logic=BI.inherit(BI.OB,{createLogic:function(){return this.options||{}}}),BI.LogicFactory={Type:{Vertical:"vertical",Horizontal:"horizontal",Table:"table",HorizontalFill:"horizontal_fill"},createLogic:function(a,b){var c;switch(a){case BI.LogicFactory.Type.Vertical:c=BI.VerticalLayoutLogic;break;case BI.LogicFactory.Type.Horizontal:c=BI.HorizontalLayoutLogic;break;case BI.LogicFactory.Type.Table:c=BI.TableLayoutLogic;break;case BI.LogicFactory.Type.HorizontalFill:c=BI.HorizontalFillLayoutLogic;break;default:c=BI.Logic}return new c(b).createLogic()},createLogicTypeByDirection:function(a){switch(a){case BI.Direction.Top:case BI.Direction.Bottom:case BI.Direction.Custom:return BI.LogicFactory.Type.Vertical;case BI.Direction.Left:case BI.Direction.Right:return BI.LogicFactory.Type.Horizontal}},createLogicItemsByDirection:function(a){var b,c=Array.prototype.slice.call(arguments,1);switch(c=BI.map(c,function(a,b){return BI.isWidget(b)?{el:b,width:b.options.width,height:b.options.height}:b}),a){case BI.Direction.Bottom:b=BI.LogicFactory.Type.Vertical,c.reverse();break;case BI.Direction.Right:b=BI.LogicFactory.Type.Horizontal,c.reverse();break;case BI.Direction.Custom:c=c.slice(1)}return c}},BI.VerticalLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.VerticalLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options;return 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BI.extend(BI.TableLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,columns:0,rows:0,columnSize:[],rowSize:[],hgap:0,vgap:0,items:[]})},createLogic:function(){var a,b=this.options;return a=b.dynamic?"bi.table":"bi.window",{type:a,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,columns:b.columns,rows:b.rows,columnSize:b.columnSize,rowSize:b.rowSize,hgap:b.hgap,vgap:b.vgap,items:b.items}},_init:function(){BI.TableLayoutLogic.superclass._init.apply(this,arguments)}}),BI.HorizontalFillLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.HorizontalFillLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options,c=[];return BI.each(b.items,function(a,b){c.push(b.width||0)}),a=b.dynamic?"bi.horizontal_adapt":"bi.htape",{type:a,columnSize:c,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,items:b.items}},_init:function(){BI.HorizontalFillLayoutLogic.superclass._init.apply(this,arguments)}}),_.extend(BI,{ajax:function(a){a||(a={});var b=a.async;a.data=BI.cjkEncodeDO(a.data||{}),$.ajax({url:a.url,type:"POST",data:a.data,async:b,error:a.error,complete:function(b,c){BI.isFunction(a.complete)&&a.complete(BI.jsonDecode(b.responseText),c)}})}}),BI.prepares.push(function(){var a,b=function(){return null==a&&(a=!(!BI.isSupportCss3||!BI.isSupportCss3("flex"))),a};BI.Plugin.registerWidget("bi.horizontal",function(a){var c=BI.isIE(),d=b(),e=c&&BI.getIEVersion()<8;return a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Left?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Top&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):c?a:d?BI.extend(a,{type:"bi.flex_horizontal"}):BI.extend(a,{type:"bi.table_adapt"})}),BI.Plugin.registerWidget("bi.center_adapt",function(a){var c=BI.isIE(),d=b(),e=a.items&&a.items.length<=1;return!c&&d&&e?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend(a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):e?BI.extend(a,{type:"bi.inline_center_adapt"}):a}),BI.Plugin.registerWidget("bi.vertical_adapt",function(a){var c=BI.isIE(),d=b();return!c&&d?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_vertical_center"}):BI.extend(a,{type:"bi.flex_vertical_center"}):BI.extend(a,{type:"bi.inline_vertical_adapt"})}),BI.Plugin.registerWidget("bi.horizontal_adapt",function(a){return a.items&&a.items.length<=1?BI.extend(a,{type:"bi.horizontal_auto"}):a}),BI.Plugin.registerWidget("bi.float_center_adapt",function(a){return!BI.isIE()&&b()?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):BI.extend(a,{type:"bi.inline_center_adapt"})})}),!function(){var a=_global.document&&_global.document.attachEvent,b=!1;if(_global.document&&!a){var c=function(){var a=_global.requestAnimationFrame||_global.mozRequestAnimationFrame||_global.webkitRequestAnimationFrame||function(a){return _global.setTimeout(a,20)};return function(b){return a(b)}}(),d=function(){var 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BI.DOM.rgb2hex(BI.DOM.json2rgb({r:this.R.getValue(),g:this.G.getValue(),b:this.B.getValue()}))}}),BI.SimpleColorPickerEditor.EVENT_CHANGE="SimpleColorPickerEditor.EVENT_CHANGE",BI.shortcut("bi.simple_color_picker_editor",BI.SimpleColorPickerEditor),BI.Farbtastic=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Farbtastic.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-farbtastic",width:195,height:195})},_init:function(){BI.Farbtastic.superclass._init.apply(this,arguments)},mounted:function(){var a=this;this.farbtastic=$.farbtastic(this.element,function(b){a.fireEvent(BI.Farbtastic.EVENT_CHANGE,a.getValue(),a)})},setValue:function(a){this.farbtastic.setColor(a)},getValue:function(){return this.farbtastic.color}}),BI.Farbtastic.EVENT_CHANGE="Farbtastic.EVENT_CHANGE",BI.shortcut("bi.farbtastic",BI.Farbtastic),jQuery.fn.farbtastic=function(a){return $.farbtastic(this,a),this},jQuery.farbtastic=function(a,b){var a=$(a).get(0);return a.farbtastic||(a.farbtastic=new jQuery._farbtastic(a,b))},jQuery._farbtastic=function(a,b){var c=this;$(a).html('
');var d=$(".farbtastic",a);c.wheel=$(".wheel",a).get(0),c.radius=84,c.square=100,c.width=194,navigator.appVersion.match(/MSIE [0-6]\./)&&$("*",d).each(function(){if("none"!=this.currentStyle.backgroundImage){var a=this.currentStyle.backgroundImage;a=this.currentStyle.backgroundImage.substring(5,a.length-2),$(this).css({backgroundImage:"none",filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='"+a+"')"})}}),c.linkTo=function(a){return"object"==typeof c.callback&&$(c.callback).unbind("keyup",c.updateValue),c.color=null,"function"==typeof a?c.callback=a:"object"!=typeof a&&"string"!=typeof a||(c.callback=$(a),c.callback.bind("keyup",c.updateValue),c.callback.get(0).value&&c.setColor(c.callback.get(0).value)),this},c.updateValue=function(a){this.value&&this.value!=c.color&&c.setColor(this.value)},c.setColor=function(a){var b=c.unpack(a);return c.color!=a&&b&&(c.color=a,c.rgb=b,c.hsl=c.RGBToHSL(c.rgb),c.updateDisplay()),this},c.setHSL=function(a){return c.hsl=a,c.rgb=c.HSLToRGB(a),c.color=c.pack(c.rgb),c.updateDisplay(),this},c.widgetCoords=function(a){var b,d,e=a.target||a.srcElement,f=c.wheel;if("undefined"!=typeof a.offsetX){for(var g={x:a.offsetX,y:a.offsetY},h=e;h;)h.mouseX=g.x,h.mouseY=g.y,g.x+=h.offsetLeft,g.y+=h.offsetTop,h=h.offsetParent;for(var h=f,i={x:0,y:0};h;){if("undefined"!=typeof h.mouseX){b=h.mouseX-i.x,d=h.mouseY-i.y;break}i.x+=h.offsetLeft,i.y+=h.offsetTop,h=h.offsetParent}for(h=e;h;)h.mouseX=void 0,h.mouseY=void 0,h=h.offsetParent}else{var g=c.absolutePosition(f);b=(a.pageX||0*(a.clientX+$("html").get(0).scrollLeft))-g.x,d=(a.pageY||0*(a.clientY+$("html").get(0).scrollTop))-g.y}return{x:b-c.width/2,y:d-c.width/2}},c.click=function(a){var b=c.widgetCoords(a);return c.circleDrag=2*Math.max(Math.abs(b.x),Math.abs(b.y))>c.square,c.mousemove(a),!1},c.mousemove=function(a){var b=c.widgetCoords(a);if(c.circleDrag){var d=Math.atan2(b.x,-b.y)/6.28;d<0&&(d+=1),c.setHSL([d,c.hsl[1],c.hsl[2]])}else{var e=Math.max(0,Math.min(1,-(b.x/c.square)+.5)),f=Math.max(0,Math.min(1,-(b.y/c.square)+.5));c.setHSL([c.hsl[0],e,f])}return!1},c.updateDisplay=function(){var a=6.28*c.hsl[0];$(".h-marker",d).css({left:Math.round(Math.sin(a)*c.radius+c.width/2)+"px",top:Math.round(-Math.cos(a)*c.radius+c.width/2)+"px"}),$(".sl-marker",d).css({left:Math.round(c.square*(.5-c.hsl[1])+c.width/2)+"px",top:Math.round(c.square*(.5-c.hsl[2])+c.width/2)+"px"}),$(".color",d).css("backgroundColor",c.pack(c.HSLToRGB([c.hsl[0],1,.5]))),"object"==typeof c.callback?($(c.callback).css({backgroundColor:c.color,color:c.hsl[2]>.5?"#000":"#fff"}),$(c.callback).each(function(){this.value&&this.value!=c.color&&(this.value=c.color)})):"function"==typeof c.callback&&c.callback.call(c,c.color)},c.absolutePosition=function(a){var b={x:a.offsetLeft,y:a.offsetTop};if(a.offsetParent){var d=c.absolutePosition(a.offsetParent);b.x+=d.x,b.y+=d.y}return b},c.pack=function(a){var b=Math.round(255*a[0]),c=Math.round(255*a[1]),d=Math.round(255*a[2]);return"#"+(b<16?"0":"")+b.toString(16)+(c<16?"0":"")+c.toString(16)+(d<16?"0":"")+d.toString(16)},c.unpack=function(a){return 7==a.length?[parseInt("0x"+a.substring(1,3))/255,parseInt("0x"+a.substring(3,5))/255,parseInt("0x"+a.substring(5,7))/255]:4==a.length?[parseInt("0x"+a.substring(1,2))/15,parseInt("0x"+a.substring(2,3))/15,parseInt("0x"+a.substring(3,4))/15]:void 0},c.HSLToRGB=function(a){var b,c,d=a[0],e=a[1],f=a[2];return c=f<=.5?f*(e+1):f+e-f*e,b=2*f-c,[this.hueToRGB(b,c,d+.33333),this.hueToRGB(b,c,d),this.hueToRGB(b,c,d-.33333)]},c.hueToRGB=function(a,b,c){return c=c<0?c+1:c>1?c-1:c,6*c<1?a+(b-a)*c*6:2*c<1?b:3*c<2?a+(b-a)*(.66666-c)*6:a},c.RGBToHSL=function(a){var b,c,d,e,f,g,h=a[0],i=a[1],j=a[2];return b=Math.min(h,Math.min(i,j)),c=Math.max(h,Math.max(i,j)),d=c-b,g=(b+c)/2,f=0,g>0&&g<1&&(f=d/(g<.5?2*g:2-2*g)),e=0,d>0&&(c==h&&c!=i&&(e+=(i-j)/d),c==i&&c!=j&&(e+=2+(j-h)/d),c==j&&c!=h&&(e+=4+(h-i)/d),e/=6),[e,f,g]},$("*",d).click(c.click),c.setColor("#000000"),b&&c.linkTo(b)},BI.BubbleCombo=BI.inherit(BI.Widget,{_const:{TRIANGLE_LENGTH:6},_defaultConfig:function(){return BI.extend(BI.BubbleCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-bubble-combo",trigger:"click",toggle:!0,direction:"bottom",isDefaultInit:!1,destroyWhenHide:!1,isNeedAdjustHeight:!0,isNeedAdjustWidth:!0,stopPropagation:!1,adjustLength:0,hideChecker:BI.emptyFn,offsetStyle:"left",el:{},popup:{}})},_init:function(){BI.BubbleCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.combo=BI.createWidget({type:"bi.combo",element:this,trigger:b.trigger,toggle:b.toggle,container:b.container,direction:b.direction,isDefaultInit:b.isDefaultInit,destroyWhenHide:b.destroyWhenHide,isNeedAdjustHeight:b.isNeedAdjustHeight,isNeedAdjustWidth:b.isNeedAdjustWidth,adjustLength:this._getAdjustLength(),stopPropagation:b.stopPropagation,adjustXOffset:0,adjustYOffset:0,hideChecker:b.hideChecker,offsetStyle:b.offsetStyle,el:b.el,popup:BI.extend({type:"bi.bubble_popup_view"},b.popup)}),this.combo.on(BI.Combo.EVENT_TRIGGER_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_TRIGGER_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_EXPAND,function(){a.fireEvent(BI.BubbleCombo.EVENT_EXPAND,arguments)}),this.combo.on(BI.Combo.EVENT_COLLAPSE,function(){a.fireEvent(BI.BubbleCombo.EVENT_COLLAPSE,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_INIT,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_INIT,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_POPUPVIEW,function(){a._showTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_AFTER_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW,function(){a._hideTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_HIDEVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_HIDEVIEW,arguments)})},_getAdjustLength:function(){return this._const.TRIANGLE_LENGTH+this.options.adjustLength},_createTriangle:function(a){var b={},c={},d=this.options.adjustLength,e=this.element.offset(),f=e.left,g=e.left+this.element.outerWidth(),h=e.top,i=e.top+this.element.outerHeight();switch(a){case"left":b={top:h,height:this.element.outerHeight(),left:f-d-this._const.TRIANGLE_LENGTH},c={width:this._const.TRIANGLE_LENGTH};break;case"right":b={top:h,height:this.element.outerHeight(),left:g+d},c={width:this._const.TRIANGLE_LENGTH};break;case"top":b={left:f,width:this.element.outerWidth(),top:h-d-this._const.TRIANGLE_LENGTH},c={height:this._const.TRIANGLE_LENGTH};break;case"bottom":b={left:f,width:this.element.outerWidth(),top:i+d},c={height:this._const.TRIANGLE_LENGTH}}this.triangle&&this.triangle.destroy(),this.triangle=BI.createWidget(c,{type:"bi.center_adapt",cls:"button-combo-triangle-wrapper",items:[{type:"bi.layout",cls:"bubble-combo-triangle-"+a+" bi-high-light-border"}]}),b.el=this.triangle,BI.createWidget({type:"bi.absolute",element:this,items:[b]})},_createLeftTriangle:function(){this._createTriangle("left")},_createRightTriangle:function(){this._createTriangle("right")},_createTopTriangle:function(){this._createTriangle("top")},_createBottomTriangle:function(){this._createTriangle("bottom")},_showTriangle:function(){var a=this.combo.getPopupPosition();switch(a.dir){case"left,top":case"left,bottom":this._createLeftTriangle();break;case"right,top":case"right,bottom":this._createRightTriangle();break;case"top,left":case"top,right":this._createTopTriangle();break;case"bottom,left":case"bottom,right":this._createBottomTriangle()}},_hideTriangle:function(){this.triangle&&this.triangle.destroy(),this.triangle=null},hideView:function(){this._hideTriangle(),this.combo&&this.combo.hideView()},showView:function(){this.combo&&this.combo.showView()},isViewVisible:function(){return this.combo.isViewVisible()}}),BI.BubbleCombo.EVENT_TRIGGER_CHANGE="EVENT_TRIGGER_CHANGE",BI.BubbleCombo.EVENT_CHANGE="EVENT_CHANGE",BI.BubbleCombo.EVENT_EXPAND="EVENT_EXPAND",BI.BubbleCombo.EVENT_COLLAPSE="EVENT_COLLAPSE",BI.BubbleCombo.EVENT_AFTER_INIT="EVENT_AFTER_INIT",BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.BubbleCombo.EVENT_AFTER_POPUPVIEW="EVENT_AFTER_POPUPVIEW",BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW="EVENT_BEFORE_HIDEVIEW",BI.BubbleCombo.EVENT_AFTER_HIDEVIEW="EVENT_AFTER_HIDEVIEW",BI.shortcut("bi.bubble_combo",BI.BubbleCombo),BI.BubblePopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.BubblePopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:a.baseCls+" bi-bubble-popup-view",minWidth:220,maxWidth:300,minHeight:90})},_init:function(){BI.BubblePopupView.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.bubble_popup_view",BI.BubblePopupView),BI.BubblePopupBarView=BI.inherit(BI.BubblePopupView,{_defaultConfig:function(){return BI.extend(BI.BubblePopupBarView.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-bubble-bar-popup-view",buttons:[{value:BI.i18nText("BI-Basic_Cancel"),ghost:!0},{value:BI.i18nText(BI.i18nText("BI-Basic_Sure"))}]})},_init:function(){BI.BubblePopupBarView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this,c=[];return BI.each(a.buttons,function(a,d){BI.isWidget(d)?c.push(d):c.push(BI.extend({type:"bi.button",height:24,handler:function(a){b.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,a)}},d))}),BI.createWidget({type:"bi.center",height:44,rgap:15,items:[{type:"bi.right_vertical_adapt",lgap:10,items:c}]})},_createView:function(){var a=this.options,b=BI.createWidget({type:"bi.button_group",items:[a.el],layouts:[{type:"bi.vertical",hgap:15,tgap:10}]});return b.element.css("min-height",a.minHeight-44),b}}),BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.bubble_bar_popup_view",BI.BubblePopupBarView),BI.TextBubblePopupBarView=BI.inherit(BI.Widget,{props:function(){return{baseCls:"bi-text-bubble-bar-popup-view",text:"",buttons:[{level:"ignore",value:!1,text:BI.i18nText("BI-Basic_Cancel")},{value:!0,text:BI.i18nText("BI-Basic_Sure")}]}},render:function(){var a=this,b=this.options,c=BI.map(b.buttons,function(b,c){return BI.isWidget(c)?c:BI.extend({type:"bi.button",height:24,handler:function(b){a.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,b)}},c)});return{type:"bi.bubble_bar_popup_view",ref:function(){a.popup=this},el:{type:"bi.label",text:b.text,whiteSpace:"normal",textAlign:"left",ref:function(){a.text=this}},buttons:c}},populate:function(a){this.text.setText(a||this.options.text)}}),BI.TextBubblePopupBarView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_bubble_bar_popup_view",BI.TextBubblePopupBarView),BI.EditorIconCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.EditorIconCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseClass:"bi-check-editor-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:""})},_init:function(){BI.EditorIconCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.editor_trigger",items:b.items,height:b.height,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText,value:b.value}),this.trigger.on(BI.EditorTrigger.EVENT_CHANGE,function(){a.popup.setValue(this.getValue()),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.editorIconCheckCombo.hideView(),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editorIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.editorIconCheckCombo.setValue(a)},getValue:function(){return this.trigger.getValue()},populate:function(a){this.options.items=a,this.editorIconCheckCombo.populate(a)}}),BI.EditorIconCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.editor_icon_check_combo",BI.EditorIconCheckCombo),BI.IconCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-combo",width:24,height:24,el:{},popup:{},minWidth:100,maxWidth:"auto",maxHeight:300,direction:"bottom",adjustLength:3,adjustXOffset:0,adjustYOffset:0,offsetStyle:"left",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.icon_combo_trigger",iconCls:b.iconCls,title:b.title,items:b.items,width:b.width,height:b.height,iconWidth:b.iconWidth,iconHeight:b.iconHeight,value:b.value}),this.popup=BI.createWidget(b.popup,{type:"bi.icon_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.IconComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.iconCombo.hideView(),a.fireEvent(BI.IconCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.iconCombo=BI.createWidget({type:"bi.combo",element:this,direction:b.direction,trigger:b.trigger,container:b.container,adjustLength:b.adjustLength,adjustXOffset:b.adjustXOffset,adjustYOffset:b.adjustYOffset,offsetStyle:b.offsetStyle,el:this.trigger,popup:{el:this.popup,maxWidth:b.maxWidth,maxHeight:b.maxHeight,minWidth:b.minWidth}})},showView:function(){this.iconCombo.showView()},hideView:function(){this.iconCombo.hideView()},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.iconCombo.populate(a)}}),BI.IconCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo",BI.IconCombo),BI.IconComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi.icon-combo-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconComboPopup.EVENT_CHANGE,c,d); }),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_popup",BI.IconComboPopup),BI.IconComboTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconComboTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-combo-trigger",el:{},items:[],iconCls:"",width:24,height:24,isShowDown:!0,value:""})},_init:function(){BI.IconComboTrigger.superclass._init.apply(this,arguments);var a=this.options,b="";BI.isKey(a.value)&&(b=this._digest(a.value,a.items)),this.button=BI.createWidget(a.el,{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b,disableSelected:!0,width:a.isShowDown?a.width-12:a.width,height:a.height,iconWidth:a.iconWidth,iconHeight:a.iconHeight,selected:BI.isNotEmptyString(b)}),this.down=BI.createWidget({type:"bi.icon_button",disableSelected:!0,cls:"icon-combo-down-icon trigger-triangle-font font-size-12",width:12,height:8,selected:BI.isNotEmptyString(b)}),this.down.setVisible(a.isShowDown),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.button,left:0,right:0,top:0,bottom:0},{el:this.down,right:3,bottom:0}]})},_digest:function(a,b){var c="";return a=BI.isArray(a)?a[0]:a,BI.any(b,function(b,d){if(a===d.value)return c=d.iconCls,!0}),c},populate:function(a){var b=this.options;this.options.items=a||[],this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1)},setValue:function(a){BI.IconComboTrigger.superclass.setValue.apply(this,arguments);var b=this.options,c=this._digest(a,this.options.items);a=BI.isArray(a)?a[0]:a,BI.isNotEmptyString(c)?(this.button.setIcon(c),this.button.setSelected(!0),this.down.setSelected(!0)):(this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1))}}),BI.IconComboTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_trigger",BI.IconComboTrigger),BI.IconTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconTextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-value-combo",height:24,iconHeight:null,iconWidth:null,value:"",attributes:{tabIndex:0}})},_init:function(){BI.IconTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_icon_text_trigger",cls:"icon-text-value-trigger",items:b.items,height:b.height,text:b.text,iconCls:b.iconCls,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth,title:b.title,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.icon_text_value_combo_popup",items:b.items,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth}),this.popup.on(BI.IconTextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.IconTextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this.setValue(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.options.tipType="warning",this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.options.tipType="success",this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.IconTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo",BI.IconTextValueCombo),BI.IconTextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconTextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-icon-popup"})},_init:function(){BI.IconTextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconTextValueComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconTextValueComboPopup.superclass.populate.apply(this,arguments);var b=this.options;a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24,iconWrapperWidth:b.iconWrapperWidth,iconHeight:b.iconHeight,iconWidth:b.iconWidth}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo_popup",BI.IconTextValueComboPopup),BI.SearchTextValueCombo=BI.inherit(BI.Widget,{props:{baseCls:"bi-search-text-value-combo",height:24,text:"",items:[],tipType:"",warningTitle:"",attributes:{tabIndex:0}},render:function(){var a=this,b=this.options;return{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,adjustLength:2,toggle:!1,ref:function(){a.combo=this},el:{type:"bi.search_text_value_trigger",cls:"search-text-value-trigger",ref:function(){a.trigger=this},items:b.items,height:b.height-2,text:b.text,value:b.value,tipType:b.tipType,warningTitle:b.warningTitle,title:b.title,listeners:[{eventName:BI.SearchTextValueTrigger.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},popup:{el:{type:"bi.text_value_combo_popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:b.value,items:b.items,ref:function(){a.popup=this,a.trigger.getSearcher().setAdapter(a.popup)},listeners:[{eventName:BI.TextValueComboPopup.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},maxHeight:252},listeners:[{eventName:BI.Combo.EVENT_AFTER_HIDEVIEW,action:function(){a.trigger.stopEditing()}},{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.fireEvent(BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},left:0,right:0,bottom:0,top:0},{el:{type:"bi.trigger_icon_button",cls:"trigger-icon-button",ref:function(){a.triggerBtn=this},width:b.height,height:b.height,handler:function(){a.combo.isViewVisible()?a.combo.hideView():a.combo.showView()}},right:0,bottom:0,top:0}]}},mounted:function(){var a=this.options;BI.isKey(a.value)&&this._checkError(a.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.element.removeClass("combo-error").addClass("combo-error"),this.trigger.attr("tipType","warning")):(this.element.removeClass("combo-error"),this.trigger.attr("tipType","success"))}},populate:function(a){this.options.items=a,this.combo.populate(a)},setValue:function(a){this.combo.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]}}),BI.SearchTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.search_text_value_combo",BI.SearchTextValueCombo),BI.SearchTextValueComboPopup=BI.inherit(BI.Pane,{props:{baseCls:"bi-search-text-value-popup"},render:function(){var a=this,b=this.options;return{type:"bi.vertical",vgap:5,items:[{type:"bi.button_group",ref:function(){a.popup=this},items:BI.createItems(b.items,{type:"bi.single_select_item",textAlign:b.textAlign,height:24}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],behaviors:{redmark:function(){return!0}},value:b.value,listeners:[{eventName:BI.Controller.EVENT_CHANGE,action:function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.SearchTextValueComboPopup.EVENT_CHANGE,c,d)}}]}]}},populate:function(a,b,c){var d=BI.concat(a,b);BI.SearchTextValueComboPopup.superclass.populate.apply(this,d),d=BI.createItems(d,{type:"bi.single_select_item",height:24}),this.popup.populate(d,c)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.SearchTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_combo_popup",BI.SearchTextValueComboPopup),BI.SearchTextValueTrigger=BI.inherit(BI.Trigger,{props:{extraCls:"bi-search-text-value-trigger bi-border",height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.searcher",ref:function(){a.searcher=this},isAutoSearch:!1,el:{type:"bi.state_editor",ref:function(){a.editor=this},text:this._digest(b.value,b.items),value:b.value,height:b.height,tipText:""},popup:{type:"bi.search_text_value_combo_popup",cls:"bi-card",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE},onSearch:function(a,c){var d=a.keyword,e=BI.Func.getSearchResult(b.items,d),f=e.match,g=e.find;c(g,f)},listeners:[{eventName:BI.Searcher.EVENT_CHANGE,action:function(){a.fireEvent(BI.SearchTextValueTrigger.EVENT_CHANGE)}}]}},{el:{type:"bi.layout",width:24},width:24}]}},_setState:function(a){this.editor.setState(a)},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},stopEditing:function(){this.searcher.stopSearch()},getSearcher:function(){return this.searcher},populate:function(a){this.options.items=a},setValue:function(a){this._setState(this._digest(a,this.options.items))},getValue:function(){return this.searcher.getValue()}}),BI.SearchTextValueTrigger.EVENT_SEARCHING="EVENT_SEARCHING",BI.SearchTextValueTrigger.EVENT_STOP="EVENT_STOP",BI.SearchTextValueTrigger.EVENT_START="EVENT_START",BI.SearchTextValueTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_trigger",BI.SearchTextValueTrigger),BI.TextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-check-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCheckCombo.hideView(),a.fireEvent(BI.TextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}}),BI.isKey(b.value)&&this.setValue(b.value)},setTitle:function(a){this.trigger.setTitle(a)},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},setWarningTitle:function(a){this.trigger.setWarningTitle(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCheckCombo.populate(a)}}),BI.TextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo",BI.TextValueCheckCombo),BI.SmallTextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:""})},_init:function(){BI.SmallTextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextIconCheckCombo.hideView(),a.fireEvent(BI.SmallTextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.SmallTextIconCheckCombo.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextIconCheckCombo.populate(a)}}),BI.SmallTextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_check_combo",BI.SmallTextValueCheckCombo),BI.TextValueCheckComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueCheckComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:this._formatItems(a.items),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueCheckComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},_formatItems:function(a){return BI.map(a,function(a,b){return BI.extend({type:"bi.icon_text_item",cls:"item-check-font bi-list-item",height:24},b)})},populate:function(a){BI.TextValueCheckComboPopup.superclass.populate.apply(this,arguments),this.popup.populate(this._formatItems(a))},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueCheckComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo_popup",BI.TextValueCheckComboPopup),BI.TextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-combo",height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:"",value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,value:b.value,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.TextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this._checkError(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.setTipType("warning"),this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.setTipType("success"),this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.TextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo",BI.TextValueCombo),BI.SmallTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,el:{},text:""})},_init:function(){BI.SmallTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextValueCombo.hideView(),a.fireEvent(BI.SmallTextValueCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextValueCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextValueCombo.populate(a)}}),BI.SmallTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_combo",BI.SmallTextValueCombo),BI.TextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_item",textAlign:a.textAlign,height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueComboPopup.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.TextValueComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo_popup",BI.TextValueComboPopup),BI.TextValueDownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueDownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-down-list-combo",height:24,attributes:{tabIndex:0}})},_init:function(){BI.TextValueDownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this._createValueMap();var c;BI.isNotNull(b.value)&&(c=this._digest(b.value)),this.trigger=BI.createWidget({type:"bi.down_list_select_text_trigger",cls:"text-value-down-list-trigger",height:b.height,items:b.items,text:b.text,value:c}),this.combo=BI.createWidget({type:"bi.down_list_combo",element:this,chooseType:BI.Selection.Single,adjustLength:2,height:b.height,el:this.trigger,value:BI.isNull(c)?[]:[c],items:BI.deepClone(b.items)}),this.combo.on(BI.DownListCombo.EVENT_CHANGE,function(){var b=a.combo.getValue()[0].value;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))}),this.combo.on(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,function(){var b=a.combo.getValue()[0].childValue;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))})},_createValueMap:function(){var a=this;this.valueMap={},BI.each(BI.flatten(this.options.items),function(b,c){BI.has(c,"el")?BI.each(c.children,function(b,d){a.valueMap[d.value]={value:c.el.value,childValue:d.value}}):a.valueMap[c.value]={value:c.value}})},_digest:function(a){return this.value=a,this.valueMap[a]},setValue:function(a){a=this._digest(a),this.combo.setValue([a]),this.trigger.setValue(a)},getValue:function(){var a=this.combo.getValue()[0];return[a.childValue||a.value]},populate:function(a){this.options.items=BI.flatten(a),this.combo.populate(a),this._createValueMap()}}),BI.TextValueDownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_down_list_combo",BI.TextValueDownListCombo),BI.DownListSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.DownListSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-select-text-trigger",height:24,text:""})},_init:function(){BI.DownListSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",element:this,height:a.height,items:this._formatItemArray(a.items),text:a.text,value:BI.isNull(a.value)?"":a.value.childValue||a.value.value})},_formatItemArray:function(){var a=BI.flatten(BI.deepClone(this.options.items)),b=[];return BI.each(a,function(a,c){BI.has(c,"el")?(BI.each(c.children,function(a,b){b.text=c.el.text+"("+b.text+")"}),b=BI.concat(b,c.children)):b.push(c)}),b},setValue:function(a){this.trigger.setValue(a.childValue||a.value)},populate:function(a){this.trigger.populate(this._formatItemArray(a))}}),BI.shortcut("bi.down_list_select_text_trigger",BI.DownListSelectTextTrigger),BI.ClearEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ClearEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-clear-editor",height:24,errorText:"",watermark:"",validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){BI.ClearEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker,value:b.value}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"search-close-h-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.ClearEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ClearEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ClearEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ClearEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ClearEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ClearEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.ClearEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ClearEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ClearEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.ClearEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.ClearEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ClearEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ClearEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ClearEditor.EVENT_STOP)}),BI.isKey(b.value)?this.clear.visible():this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isValid:function(){return this.editor.isValid()}}),BI.ClearEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ClearEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ClearEditor.EVENT_BLUR="EVENT_BLUR",BI.ClearEditor.EVENT_CLICK="EVENT_CLICK",BI.ClearEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ClearEditor.EVENT_SPACE="EVENT_SPACE",BI.ClearEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.ClearEditor.EVENT_CLEAR="EVENT_CLEAR",BI.ClearEditor.EVENT_START="EVENT_START",BI.ClearEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ClearEditor.EVENT_STOP="EVENT_STOP",BI.ClearEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ClearEditor.EVENT_VALID="EVENT_VALID",BI.ClearEditor.EVENT_ERROR="EVENT_ERROR",BI.ClearEditor.EVENT_ENTER="EVENT_ENTER",BI.ClearEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ClearEditor.EVENT_REMOVE="EVENT_REMOVE",BI.ClearEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.clear_editor",BI.ClearEditor),BI.ShelterEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ShelterEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-shelter-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,textAlign:"left"})},_init:function(){BI.ShelterEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"shelter-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:b.textAlign,height:b.height,hgap:b.hgap}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.text.on(BI.Controller.EVENT_CHANGE,function(){arguments[2]=a,a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK_LABEL)}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ShelterEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ShelterEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ShelterEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ShelterEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ShelterEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ShelterEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ShelterEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ShelterEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ShelterEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ShelterEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.ShelterEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText(),this.text.doRedMark(b.keyword)},_checkText:function(){var a=this.options;""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setTextStyle:function(a){this.text.setStyle(a)},setValue:function(a){this.editor.setValue(a),this._checkText(),this.text.doRedMark(this.options.keyword)},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.ShelterEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ShelterEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ShelterEditor.EVENT_BLUR="EVENT_BLUR",BI.ShelterEditor.EVENT_CLICK="EVENT_CLICK",BI.ShelterEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ShelterEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.ShelterEditor.EVENT_START="EVENT_START",BI.ShelterEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ShelterEditor.EVENT_STOP="EVENT_STOP",BI.ShelterEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ShelterEditor.EVENT_VALID="EVENT_VALID",BI.ShelterEditor.EVENT_ERROR="EVENT_ERROR",BI.ShelterEditor.EVENT_ENTER="EVENT_ENTER",BI.ShelterEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ShelterEditor.EVENT_SPACE="EVENT_SPACE",BI.ShelterEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.shelter_editor",BI.ShelterEditor),BI.SignEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SignEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-sign-editor", hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SignEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"sign-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:"left",height:b.height,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.selectAll()}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SignEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SignEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SignEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SignEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SignEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SignEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SignEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.SignEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SignEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SignEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SignEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SignEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.SignEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SignEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SignEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SignEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText()},_checkText:function(){var a=this.options;BI.nextTick(BI.bind(function(){""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},this))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),this._checkText()},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.SignEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SignEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SignEditor.EVENT_BLUR="EVENT_BLUR",BI.SignEditor.EVENT_CLICK="EVENT_CLICK",BI.SignEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SignEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SignEditor.EVENT_START="EVENT_START",BI.SignEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SignEditor.EVENT_STOP="EVENT_STOP",BI.SignEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SignEditor.EVENT_VALID="EVENT_VALID",BI.SignEditor.EVENT_ERROR="EVENT_ERROR",BI.SignEditor.EVENT_ENTER="EVENT_ENTER",BI.SignEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SignEditor.EVENT_SPACE="EVENT_SPACE",BI.SignEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.sign_editor",BI.SignEditor),BI.StateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,text:BI.i18nText("BI-Basic_Unrestricted")})},_init:function(){BI.StateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text tip-text-style",textAlign:"left",height:b.height,text:b.text,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")},title:BI.isNotNull(b.tipText)?b.tipText:function(){var b="";return BI.isString(a.stateValue)&&(b=a.stateValue),BI.isArray(a.stateValue)&&1===a.stateValue.length&&(b=a.stateValue[0]),b},warningTitle:b.warningTitle,tipType:b.tipType}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.StateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.StateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.StateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.StateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.StateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.StateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.StateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.StateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.StateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.StateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.StateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.StateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.StateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.StateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.StateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.StateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this.options.disabled===!1&&(this._showInput(),this.editor.focus())},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){var b=this.options;return BI.StateEditor.superclass.setValue.apply(this,arguments),this.stateValue=a,BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Select_All")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text"))):BI.isString(a)?(this.text.setText(a),void this.text.element.removeClass("state-editor-infinite-text")):void(BI.isArray(a)&&(BI.isEmpty(a)?(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text")):1===a.length?(this.text.setText(a[0]),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text"))))},setTipType:function(a){this.text.options.tipType=a}}),BI.StateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.StateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.StateEditor.EVENT_BLUR="EVENT_BLUR",BI.StateEditor.EVENT_CLICK="EVENT_CLICK",BI.StateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.StateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.StateEditor.EVENT_START="EVENT_START",BI.StateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.StateEditor.EVENT_STOP="EVENT_STOP",BI.StateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.StateEditor.EVENT_VALID="EVENT_VALID",BI.StateEditor.EVENT_ERROR="EVENT_ERROR",BI.StateEditor.EVENT_ENTER="EVENT_ENTER",BI.StateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.StateEditor.EVENT_SPACE="EVENT_SPACE",BI.StateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.state_editor",BI.StateEditor),BI.SimpleStateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SimpleStateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-simple-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,mouseOut:!1,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SimpleStateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text",textAlign:"left",height:b.height,text:BI.i18nText("BI-Basic_Unrestricted"),hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SimpleStateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.SimpleStateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){return BI.SimpleStateEditor.superclass.setValue.apply(this,arguments),BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text"))):void(BI.isArray(a)&&1!==a.length?BI.isEmpty(a)?(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(a),this.text.setTitle(a),this.text.element.removeClass("state-editor-infinite-text")))}}),BI.SimpleStateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SimpleStateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SimpleStateEditor.EVENT_BLUR="EVENT_BLUR",BI.SimpleStateEditor.EVENT_CLICK="EVENT_CLICK",BI.SimpleStateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SimpleStateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SimpleStateEditor.EVENT_START="EVENT_START",BI.SimpleStateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SimpleStateEditor.EVENT_STOP="EVENT_STOP",BI.SimpleStateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SimpleStateEditor.EVENT_VALID="EVENT_VALID",BI.SimpleStateEditor.EVENT_ERROR="EVENT_ERROR",BI.SimpleStateEditor.EVENT_ENTER="EVENT_ENTER",BI.SimpleStateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SimpleStateEditor.EVENT_SPACE="EVENT_SPACE",BI.SimpleStateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.simple_state_editor",BI.SimpleStateEditor),BI.MultiPopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.MultiPopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{_baseCls:(a._baseCls||"")+" bi-multi-list-view",buttons:[BI.i18nText("BI-Basic_Sure")]})},_init:function(){BI.MultiPopupView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this;if(0!==a.buttons.length){var c=[];return BI.each(a.buttons,function(a,b){c.push({text:b,value:a})}),this.buttongroup=BI.createWidget({type:"bi.button_group",cls:"list-view-toolbar bi-high-light bi-split-top",height:24,items:BI.createItems(c,{type:"bi.text_button",once:!1,shadow:!0,isShadowShowingOnSelected:!0}),layouts:[{type:"bi.center",hgap:0,vgap:0}]}),this.buttongroup.on(BI.ButtonGroup.EVENT_CHANGE,function(a,c){b.fireEvent(BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON,a,c)}),this.buttongroup}}}),BI.MultiPopupView.EVENT_CHANGE="EVENT_CHANGE",BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.multi_popup_view",BI.MultiPopupView),BI.PopupPanel=BI.inherit(BI.MultiPopupView,{_defaultConfig:function(){var a=BI.PopupPanel.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-popup-panel",title:""})},_init:function(){BI.PopupPanel.superclass._init.apply(this,arguments)},_createTool:function(){var a=this,b=this.options,c=BI.createWidget({type:"bi.icon_button",cls:"close-h-font",width:25,height:25});return c.on(BI.IconButton.EVENT_CHANGE,function(){a.setVisible(!1),a.fireEvent(BI.PopupPanel.EVENT_CLOSE)}),BI.createWidget({type:"bi.htape",cls:"popup-panel-title bi-header-background",height:25,items:[{el:{type:"bi.label",textAlign:"left",text:b.title,height:25,lgap:10}},{el:c,width:25}]})}}),BI.PopupPanel.EVENT_CHANGE="EVENT_CHANGE",BI.PopupPanel.EVENT_CLOSE="EVENT_CLOSE",BI.PopupPanel.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.popup_panel",BI.PopupPanel),BI.ListPane=BI.inherit(BI.Pane,{_defaultConfig:function(){var a=BI.ListPane.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-list-pane",logic:{dynamic:!0},lgap:0,rgap:0,tgap:0,bgap:0,vgap:0,hgap:0,items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,el:{type:"bi.button_group"}})},_init:function(){BI.ListPane.superclass._init.apply(this,arguments);var a=this,b=this.options;this.button_group=BI.createWidget(b.el,{type:"bi.button_group",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,behaviors:{},items:b.items,itemsCreator:function(c,d){1===c.times&&(a.empty(),BI.nextTick(function(){a.loading()})),b.itemsCreator(c,function(){d.apply(a,arguments),1===c.times&&BI.nextTick(function(){a.loaded()})})},hasNext:b.hasNext,layouts:[{type:"bi.vertical"}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.ListPane.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Top),BI.extend({scrolly:!0,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,vgap:b.vgap,hgap:b.hgap},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Top,this.button_group)}))))},hasPrev:function(){return this.button_group.hasPrev&&this.button_group.hasPrev()},hasNext:function(){return this.button_group.hasNext&&this.button_group.hasNext()},prependItems:function(a){this.options.items=a.concat(this.options.items),this.button_group.prependItems.apply(this.button_group,arguments),this.check()},addItems:function(a){this.options.items=this.options.items.concat(a),this.button_group.addItems.apply(this.button_group,arguments),this.check()},removeItemAt:function(a){a=a||[],BI.removeAt(this.options.items,a),this.button_group.removeItemAt.apply(this.button_group,arguments),this.check()},populate:function(a){var b=this;this.options;return 0===arguments.length&&BI.isFunction(this.button_group.attr("itemsCreator"))?void this.button_group.attr("itemsCreator").apply(this,[{times:1},function(){if(0===arguments.length)throw new Error("参数不能为空");b.populate.apply(b,arguments)}]):(BI.ListPane.superclass.populate.apply(this,arguments),void this.button_group.populate.apply(this.button_group,arguments))},empty:function(){this.button_group.empty()},setNotSelectedValue:function(){this.button_group.setNotSelectedValue.apply(this.button_group,arguments)},getNotSelectedValue:function(){return this.button_group.getNotSelectedValue()},setValue:function(){this.button_group.setValue.apply(this.button_group,arguments)},getValue:function(){return this.button_group.getValue.apply(this.button_group,arguments)},getAllButtons:function(){return this.button_group.getAllButtons()},getAllLeaves:function(){return this.button_group.getAllLeaves()},getSelectedButtons:function(){return this.button_group.getSelectedButtons()},getNotSelectedButtons:function(){return this.button_group.getNotSelectedButtons()},getIndexByValue:function(a){return this.button_group.getIndexByValue(a)},getNodeById:function(a){return this.button_group.getNodeById(a)},getNodeByValue:function(a){return this.button_group.getNodeByValue(a)}}),BI.ListPane.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.list_pane",BI.ListPane),BI.Panel=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Panel.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-panel bi-border",title:"",titleButtons:[],el:{},logic:{dynamic:!1}})},_init:function(){BI.Panel.superclass._init.apply(this,arguments);var a=this.options;BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("vertical",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("top",this._createTitle(),this.options.el)}))))},_createTitle:function(){var a=this,b=this.options;return this.text=BI.createWidget({type:"bi.label",cls:"panel-title-text",text:b.title,height:30}),this.button_group=BI.createWidget({type:"bi.button_group",items:b.titleButtons,layouts:[{type:"bi.center_adapt",lgap:10}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.button_group.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Panel.EVENT_CHANGE,b,c)}),{el:{type:"bi.left_right_vertical_adapt",cls:"panel-title bi-header-background bi-border-bottom",height:29,items:{left:[this.text],right:[this.button_group]},lhgap:10,rhgap:10},height:29}},setTitle:function(a){this.text.setValue(a)}}),BI.Panel.EVENT_CHANGE="Panel.EVENT_CHANGE",BI.shortcut("bi.panel",BI.Panel),BI.LinearSegmentButton=BI.inherit(BI.BasicButton,{props:{extraCls:"bi-line-segment-button bi-list-item-effect",once:!0,readonly:!0,hgap:10,height:25},render:function(){var a=this,b=this.options;return[{type:"bi.label",text:b.text,height:b.height,value:b.value,hgap:b.hgap,ref:function(){a.text=this}},{type:"bi.absolute",items:[{el:{type:"bi.layout",cls:"line-segment-button-line",height:2,ref:function(){a.line=this}},left:0,right:0,bottom:0}]}]},setSelected:function(a){BI.LinearSegmentButton.superclass.setSelected.apply(this,arguments),a?this.line.element.addClass("bi-high-light-background"):this.line.element.removeClass("bi-high-light-background")},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.linear_segment_button",BI.LinearSegmentButton),BI.LinearSegment=BI.inherit(BI.Widget,{props:{baseCls:"bi-linear-segment bi-split-bottom",items:[],height:29},render:function(){var a=this,b=this.options;return{type:"bi.button_group",items:BI.createItems(b.items,{type:"bi.linear_segment_button",height:b.height-1}),layout:[{type:"bi.center"}],listeners:[{eventName:"__EVENT_CHANGE__",action:function(){a.fireEvent("__EVENT_CHANGE__",arguments)}},{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.buttonGroup=this}}},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.shortcut("bi.linear_segment",BI.LinearSegment),BI.SelectList=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SelectList.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-list",direction:BI.Direction.Top,logic:{dynamic:!0},items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,toolbar:{type:"bi.multi_select_bar",iconWrapperWidth:36},el:{type:"bi.list_pane"}})},_init:function(){BI.SelectList.superclass._init.apply(this,arguments);var a=this,b=this.options;this.toolbar=BI.createWidget(b.toolbar),this.allSelected=!1,this.toolbar.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.allSelected=this.isSelected(),b===BI.Events.CLICK&&(a.setAllSelected(a.allSelected),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.list=BI.createWidget(b.el,{type:"bi.list_pane",items:b.items,itemsCreator:function(c,d){1===c.times&&a.toolbar.setVisible(!1),b.itemsCreator(c,function(b){d.apply(a,arguments),1===c.times&&(a.toolbar.setVisible(b&&b.length>0),a.toolbar.setEnable(b&&b.length>0)),a._checkAllSelected()})},onLoaded:b.onLoaded,hasNext:b.hasNext}),this.list.on(BI.Controller.EVENT_CHANGE,function(b,c,d){b===BI.Events.CLICK&&(a._checkAllSelected(),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(b.direction),BI.extend({scrolly:!0},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(b.direction,this.toolbar,this.list)})))),b.items.length<=0&&(this.toolbar.setVisible(!1),this.toolbar.setEnable(!1)),BI.isNotNull(b.value)&&this.setValue(b.value)},_checkAllSelected:function(){var a=this.list.getValue().length,b=this.getAllLeaves().length-a,c=this.list.hasNext(),d=this.toolbar.isSelected(),e=a>0&&(b>0||!d&&c);e=e||b>0&&c&&d,this.toolbar.setHalfSelected(e),!e&&this.toolbar.setSelected(a>0&&b<=0&&(!c||d))},setAllSelected:function(a){BI.each(this.getAllButtons(),function(b,c){(c.setSelected||c.setAllSelected).apply(c,[a])}),this.allSelected=!!a,this.toolbar.setSelected(a),this.toolbar.setHalfSelected(!1)},setToolBarVisible:function(a){this.toolbar.setVisible(a)},isAllSelected:function(){return this.allSelected},hasPrev:function(){return this.list.hasPrev()},hasNext:function(){return this.list.hasNext()},prependItems:function(a){this.list.prependItems.apply(this.list,arguments)},addItems:function(a){this.list.addItems.apply(this.list,arguments)},setValue:function(a){var b=a.type===BI.ButtonGroup.CHOOSE_TYPE_ALL;this.setAllSelected(b),this.list[b?"setNotSelectedValue":"setValue"](a.value),this._checkAllSelected()},getValue:function(){return this.isAllSelected()===!1?{type:BI.ButtonGroup.CHOOSE_TYPE_MULTI,value:this.list.getValue(),assist:this.list.getNotSelectedValue()}:{type:BI.ButtonGroup.CHOOSE_TYPE_ALL,value:this.list.getNotSelectedValue(),assist:this.list.getValue()}},empty:function(){this.list.empty()},populate:function(a){this.toolbar.setVisible(!BI.isEmptyArray(a)),this.toolbar.setEnable(!BI.isEmptyArray(a)),this.list.populate.apply(this.list,arguments),this._checkAllSelected()},_setEnable:function(a){BI.SelectList.superclass._setEnable.apply(this,arguments),this.toolbar.setEnable(a)},resetHeight:function(a){var b=(this.toolbar.element.outerHeight()||25)*(this.toolbar.isVisible()?1:0);this.list.resetHeight?this.list.resetHeight(a-b):this.list.element.css({"max-height":a-b+"px"})},setNotSelectedValue:function(){this.list.setNotSelectedValue.apply(this.list,arguments),this._checkAllSelected()},getNotSelectedValue:function(){return this.list.getNotSelectedValue()},getAllButtons:function(){return this.list.getAllButtons()},getAllLeaves:function(){return this.list.getAllLeaves()},getSelectedButtons:function(){return this.list.getSelectedButtons()},getNotSelectedButtons:function(){return this.list.getNotSelectedButtons()},getIndexByValue:function(a){return this.list.getIndexByValue(a)},getNodeById:function(a){return this.list.getNodeById(a)},getNodeByValue:function(a){return this.list.getNodeByValue(a)}}),BI.SelectList.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.select_list",BI.SelectList),BI.LazyLoader=BI.inherit(BI.Widget,{_const:{PAGE:100},_defaultConfig:function(){return BI.extend(BI.LazyLoader.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-lazy-loader",el:{}})},_init:function(){var a=this,b=this.options;BI.LazyLoader.superclass._init.apply(this,arguments);var c=b.items.length;this.loader=BI.createWidget({type:"bi.loader",element:this,el:b.el,itemsCreator:function(b,c){c(a._getNextItems(b))},hasNext:function(a){return a.count=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:30,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:5,right:74},{el:this.vlabel,top:5,right:111},{el:this.hpager,top:5,right:-9},{el:this.hlabel,top:5,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b); +},b.next)),this.next.on(BI.Controller.EVENT_CHANGE,function(b){b===BI.Events.CLICK&&a._nextLoad()})),BI.createWidget({type:"bi.vertical",element:this,items:[this.next]}),b.isDefaultInit&&BI.isEmpty(b.items)&&BI.nextTick(BI.bind(function(){this.populate()},this)),BI.isNotEmptyArray(b.items)&&this.populate(b.items)},hasNext:function(){var a=this.options;return BI.isNumber(a.count)?this.count=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:20,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:0,right:74},{el:this.vlabel,top:0,right:111},{el:this.hpager,top:0,right:-9},{el:this.hlabel,top:0,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b); return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},setValue:function(a){this.trigger.setText(this._digest(a,this.options.items))},setTipType:function(a){this.trigger.setTipType(a)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_text_trigger",BI.SelectTextTrigger),BI.SmallSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SmallSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-small-select-text-trigger bi-border",height:20})},_init:function(){this.options.height-=2,BI.SmallSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digest(a.text,a.items);this.trigger=BI.createWidget({type:"bi.small_text_trigger",element:this,height:a.height-2,text:b.text,cls:b.cls})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?{cls:"",text:d.join(",")}:{cls:"bi-water-mark",text:c.text}},setValue:function(a){var b=this._digest(a,this.options.items);this.trigger.element.removeClass("bi-water-mark").addClass(b.cls),this.trigger.setText(b.text)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.small_select_text_trigger",BI.SmallSelectTextTrigger),BI.SmallTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.SmallTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:20})},_init:function(){BI.SmallTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",textAlign:"left",height:a.height,text:a.text,hgap:b.hgap}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:a.triggerWidth||a.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:a.triggerWidth||a.height}]})},setValue:function(a){this.text.setValue(a)},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.small_text_trigger",BI.SmallTextTrigger),BI.MonthDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.MonthDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-month-combo",height:24,container:null})},_init:function(){BI.MonthDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.month_popup",behaviors:b.behaviors}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue())}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",container:b.container,element:this,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:85,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.combo.hideView(),a.fireEvent(BI.MonthDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.MonthDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.month_date_combo",BI.MonthDateCombo),BI.YearDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.YearDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-combo",min:"1900-01-01",max:"2099-12-31",behaviors:{},height:24,container:null})},_init:function(){BI.YearDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.year_popup",behaviors:b.behaviors,min:b.min,max:b.max}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",element:this,container:b.container,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:100,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.YearDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_date_combo",BI.YearDateCombo),BI.DatePicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DatePicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-picker",height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.DatePicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this._month=BI.getDate().getMonth()+1,this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){1===a._month?a.setValue({year:a.year.getValue()-1,month:12}):a.setValue({year:a.year.getValue(),month:a.month.getValue()-1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){12===a._month?a.setValue({year:a.year.getValue()+1,month:1}):a.setValue({year:a.year.getValue(),month:a.month.getValue()+1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",behaviors:b.behaviors,min:b.min,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),this.month=BI.createWidget({type:"bi.month_date_combo",behaviors:b.behaviors}),this.month.on(BI.MonthDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:24},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal",width:120,rgap:10,items:[{el:this.year,lgap:10},this.month]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:24}]}),this.setValue({year:this._year,month:this._month})},_checkLeftValid:function(){var a=this.options,b=!(1===this._month&&this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(12===this._month&&this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a.year,this._month=a.month,this.year.setValue(a.year),this.month.setValue(a.month),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return{year:this.year.getValue(),month:this.month.getValue()}}}),BI.DatePicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_picker",BI.DatePicker),BI.YearPicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.YearPicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-year-picker",behaviors:{},height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.YearPicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:25,height:25}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()-1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:25,height:25}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()+1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",min:b.min,behaviors:b.behaviors,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue(a.year.getValue()),a.fireEvent(BI.YearPicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:25},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal_float",width:50,items:[{el:this.year}]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:25}]}),this.setValue({year:this._year})},_checkLeftValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a,this.year.setValue(a),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return this.year.getValue()}}),BI.YearPicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_picker",BI.YearPicker),BI.DateCalendarPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DateCalendarPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-calendar-popup",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!0},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_init:function(){BI.DateCalendarPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this._day=this.today.getDate(),this.selectedTime=b.selectedTime||{year:this._year,month:this._month,day:this._day},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.calendar=BI.createWidget({direction:"top",logic:{dynamic:!0},type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this),afterCardCreated:function(){},afterCardShow:function(){this.setValue(a.selectedTime)}}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){a.selectedTime=a.datePicker.getValue(),a.selectedTime.day=1,a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime))}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.calendar,left:5,right:5},{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},setValue:function(a){this.datePicker.setValue(a),this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},getValue:function(){return this.selectedTime}}),BI.DateCalendarPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_calendar_popup",BI.DateCalendarPopup),BI.YearPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.YearPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-popup",behaviors:{},min:"1900-01-01",max:"2099-12-31"})},_createYearCalendar:function(a){var b=this.options,c=this._year,d=BI.createWidget({type:"bi.year_calendar",behaviors:b.behaviors,min:b.min,max:b.max,logic:{dynamic:!0},year:c+12*a});return d.setValue(this._year),d},_init:function(){BI.YearPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.selectedYear=this._year=BI.getDate().getFullYear();var c=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24,value:-1}),d=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24,value:1});this.navigation=BI.createWidget({type:"bi.navigation",element:this,single:!0,logic:{dynamic:!0},tab:{cls:"year-popup-navigation bi-high-light bi-split-top",height:24,items:[c,d]},cardCreator:BI.bind(this._createYearCalendar,this),afterCardShow:function(){this.setValue(a.selectedYear);var b=this.getSelectedCard();c.setEnable(!b.isFrontYear()),d.setEnable(!b.isFinalYear())}}),this.navigation.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedYear=this.getValue(),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a.fireEvent(BI.YearPopup.EVENT_CHANGE,a.selectedYear)}),BI.isKey(b.value)&&this.setValue(b.value)},getValue:function(){return this.selectedYear},setValue:function(a){var b=this.options;a=BI.parseInt(a),BI.checkDateVoid(a,1,1,b.min,b.max)[0]?(a=BI.getDate().getFullYear(),this.selectedYear="",this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue("")):(this.selectedYear=a,this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue(a))}}),BI.YearPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_popup",BI.YearPopup),BI.DateTriangleTrigger=BI.inherit(BI.Trigger,{_const:{height:24,iconWidth:12,iconHeight:12},_defaultConfig:function(){return BI.extend(BI.DateTriangleTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-triangle-trigger pull-down-ha-font cursor-pointer",height:24})},_init:function(){BI.DateTriangleTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"right",text:a.text,value:a.value,height:b.height}),BI.createWidget({type:"bi.vertical_adapt",element:this,items:[{el:this.text,rgap:5},{type:"bi.icon_label",width:16}]})},setValue:function(a){this.text.setValue(a)},getValue:function(){return this.text.getValue()},setText:function(a){this.text.setText(a)},getText:function(){return this.item.getText()},getKey:function(){}}),BI.shortcut("bi.date_triangle_trigger",BI.DateTriangleTrigger),BI.StaticDatePaneCard=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StaticDatePaneCard.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-pane",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_init:function(){BI.StaticDatePaneCard.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this.selectedTime=b.selectedTime||{year:this._year,month:this._month},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){var b=a.datePicker.getValue(),c=BI.getMonthDays(BI.getDate(b.year,b.month-1,1)),d=a.selectedTime.day||0;d>c&&(d=c),a.selectedTime={year:b.year,month:b.month},0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.setValue(b.selectedTime),BI.createWidget({type:"bi.vtape",element:this,items:[{el:this.datePicker,height:40},this.calendar],hgap:10}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){this._setDatePicker(a),this._setCalendar(a)},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_pane_card",BI.StaticDatePaneCard),BI.DynamicDatePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDatePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDatePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDatePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDatePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDatePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDatePane.Static:return{type:"bi.static_date_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDatePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this}}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateCombo.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_pane",BI.DynamicDatePane),BI.extend(BI.DynamicDatePane,{Static:1,Dynamic:2}),BI.DateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:290,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},_defaultConfig:function(){return BI.extend(BI.DateTimeCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-combo bi-border",width:200,height:24})},_init:function(){BI.DateTimeCombo.superclass._init.apply(this,arguments);var a=this,b=this.options,c=BI.getDate();this.storeValue=BI.isNotNull(b.value)?b.value:{year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate(),hour:c.getHours(),minute:c.getMinutes(),second:c.getSeconds()},this.trigger=BI.createWidget({type:"bi.date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),this.popup=BI.createWidget({type:"bi.date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),a.setValue(this.storeValue),this.popup.on(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE,function(){a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CANCEL)}),this.popup.on(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE,function(){a.storeValue=a.popup.getValue(),a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CONFIRM)}),this.combo=BI.createWidget({type:"bi.combo",container:b.container,toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,adjustLength:this.constants.comboAdjustHeight,popup:{el:this.popup,width:this.constants.popupWidth,stopPropagation:!1},hideChecker:function(a){return 0===d.element.find(a.target).length}}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW)});var d=BI.createWidget({type:"bi.icon_button",cls:"bi-trigger-icon-button date-font bi-border-right",width:24,height:24});d.on(BI.IconButton.EVENT_CHANGE,function(){a.combo.isViewVisible()||a.combo.showView()}),BI.createWidget({type:"bi.htape",element:this,items:[{type:"bi.absolute",items:[{el:this.combo,top:0,left:0,right:0,bottom:0},{el:d,top:0,right:0}]}]})},setValue:function(a){this.storeValue=a,this.popup.setValue(a),this.trigger.setValue(a)},getValue:function(){return this.storeValue},hidePopupView:function(){this.combo.hideView()}}),BI.DateTimeCombo.EVENT_CANCEL="EVENT_CANCEL",BI.DateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW="BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.date_time_combo",BI.DateTimeCombo),BI.DateTimePopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimePopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-popup",width:268,height:374})},_init:function(){BI.DateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.cancelButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top bi-border-right",shadow:!0,text:BI.i18nText("BI-Basic_Cancel")}),this.cancelButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE)}),this.okButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top",shadow:!0,text:BI.i18nText("BI-Basic_OK")}),this.okButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE)}),this.dateCombo=BI.createWidget({type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max}),a.dateCombo.on(BI.DateCalendarPopup.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}),this.dateSelect=BI.createWidget({type:"bi.vertical_adapt",cls:"bi-border-top",items:[{type:"bi.label",text:BI.i18nText("BI-Basic_Time"),width:45},{type:"bi.date_time_select",max:23,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.hour=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.minute=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.second=b}}]}),this.setValue(b.value),this.dateButton=BI.createWidget({type:"bi.grid",items:[[this.cancelButton,this.okButton]]}),BI.createWidget({element:this,type:"bi.vtape",items:[{el:this.dateCombo},{el:this.dateSelect,height:50},{el:this.dateButton,height:30}]})},setValue:function(a){var b,c=a;BI.isNull(c)?(b=BI.getDate(),this.dateCombo.setValue({year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}),this.hour.setValue(b.getHours()),this.minute.setValue(b.getMinutes()),this.second.setValue(b.getSeconds())):(this.dateCombo.setValue({year:c.year,month:c.month,day:c.day}),this.hour.setValue(c.hour),this.minute.setValue(c.minute),this.second.setValue(c.second))},getValue:function(){return{year:this.dateCombo.getValue().year,month:this.dateCombo.getValue().month,day:this.dateCombo.getValue().day,hour:this.hour.getValue(),minute:this.minute.getValue(),second:this.second.getValue()}}}),BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE="BUTTON_CANCEL_EVENT_CHANGE",BI.DateTimePopup.CALENDAR_EVENT_CHANGE="CALENDAR_EVENT_CHANGE",BI.shortcut("bi.date_time_popup",BI.DateTimePopup),BI.DateTimeSelect=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimeSelect.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-select bi-border",max:23,min:0})},_init:function(){BI.DateTimeSelect.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.sign_editor",value:this._alertInEditorValue(b.min),allowBlank:!1,errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Please_Input_Natural_Number"):BI.i18nText("BI-Numerical_Interval_Input_Data")},validationChecker:function(a){return BI.isNaturalNumber(a)}}),this.editor.on(BI.TextEditor.EVENT_CONFIRM,function(){a._finetuning(0),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.topBtn=BI.createWidget({type:"bi.icon_button",cls:"column-pre-page-h-font top-button bi-border-left bi-border-bottom"}),this.topBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.bottomBtn=BI.createWidget({type:"bi.icon_button",cls:"column-next-page-h-font bottom-button bi-border-left"}),this.bottomBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(-1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this._finetuning(0),BI.createWidget({type:"bi.htape",element:this,items:[this.editor,{el:{type:"bi.grid",columns:1,rows:2,items:[{column:0,row:0,el:this.topBtn},{column:0,row:1,el:this.bottomBtn}]},width:30}]})},_alertOutEditorValue:function(a){return a>this.options.max&&(a=this.options.min),athis.options.max&&(a=this.options.min),ac&&(d=c),a.selectedTime=BI.extend(a.selectedTime,{year:b.year,month:b.month,day:d}),0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.vtape",element:this,hgap:10,items:[{el:this.datePicker,height:40},this.calendar,{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.fireEvent("EVENT_CHANGE")}}]},height:40}]}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]}),this.setValue(b.selectedTime)},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=BI.extend({},this.timeSelect.getValue(),a)},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){a=a||{},this._setDatePicker(a),this._setCalendar(a),this.timeSelect.setValue({hour:a.hour,minute:a.minute,second:a.second})},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_time_pane_card",BI.StaticDateTimePaneCard),BI.DynamicDateTimePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateTimePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateTimePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDateTimePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDateTimePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDateTimePane.Static:return{type:"bi.static_date_time_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDateTimePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this; }}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateTimePane.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateTimePane.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_time_pane",BI.DynamicDateTimePane),BI.extend(BI.DynamicDateTimePane,{Static:1,Dynamic:2}),BI.DownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-combo",height:24,items:[],adjustLength:0,direction:"bottom",trigger:"click",container:null,stopPropagation:!1,el:{}})},_init:function(){BI.DownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.popupview=BI.createWidget({type:"bi.down_list_popup",items:b.items,chooseType:b.chooseType,value:b.value}),this.popupview.on(BI.DownListPopup.EVENT_CHANGE,function(b){a.fireEvent(BI.DownListCombo.EVENT_CHANGE,b),a.downlistcombo.hideView()}),this.popupview.on(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,function(b,c){a.fireEvent(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,b,c),a.downlistcombo.hideView()}),this.downlistcombo=BI.createWidget({element:this,type:"bi.combo",trigger:b.trigger,isNeedAdjustWidth:!1,container:b.container,adjustLength:b.adjustLength,direction:b.direction,stopPropagation:b.stopPropagation,el:BI.createWidget(b.el,{type:"bi.icon_trigger",extraCls:b.iconCls?b.iconCls:"",width:b.width,height:b.height}),popup:{el:this.popupview,stopPropagation:!0,maxHeight:1e3,minWidth:140}}),this.downlistcombo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.DownListCombo.EVENT_BEFORE_POPUPVIEW)})},hideView:function(){this.downlistcombo.hideView()},showView:function(a){this.downlistcombo.showView(a)},populate:function(a){this.popupview.populate(a)},setValue:function(a){this.popupview.setValue(a)},getValue:function(){return this.popupview.getValue()}}),BI.DownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DownListCombo.EVENT_SON_VALUE_CHANGE="EVENT_SON_VALUE_CHANGE",BI.DownListCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.down_list_combo",BI.DownListCombo),BI.DownListGroup=BI.inherit(BI.Widget,{constants:{iconCls:"check-mark-ha-font"},_defaultConfig:function(){return BI.extend(BI.DownListGroup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-group",items:[{el:{}}]})},_init:function(){BI.DownListGroup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.downlistgroup=BI.createWidget({element:this,type:"bi.button_tree",items:a.items,chooseType:0,layouts:[{type:"bi.vertical",hgap:0,vgap:0}],value:a.value}),this.downlistgroup.on(BI.Controller.EVENT_CHANGE,function(a){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.DownListGroup.EVENT_CHANGE,arguments)})},getValue:function(){return this.downlistgroup.getValue()},setValue:function(a){this.downlistgroup.setValue(a)}}),BI.DownListGroup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group",BI.DownListGroup),BI.DownListItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-item bi-list-item-active",cls:"",height:24,logic:{dynamic:!0},selected:!1,iconHeight:null,iconWidth:null,textHgap:0,textVgap:0,textLgap:0,textRgap:0})},_init:function(){BI.DownListItem.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"left",hgap:a.textHgap,vgap:a.textVgap,lgap:a.textLgap,rgap:a.textRgap,text:a.text,value:a.value,keyword:a.keyword,height:a.height}),this.icon=BI.createWidget({type:"bi.center_adapt",width:36,height:a.height,items:[{el:{type:"bi.icon",width:a.iconWidth,height:a.iconHeight}}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Left),BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Left,this.icon,this.text)}))))},setValue:function(){this.isReadOnly()||this.text.setValue.apply(this.text,arguments)},getValue:function(){return this.text.getValue()},setText:function(){this.text.setText.apply(this.text,arguments)},getText:function(){return this.text.getText()},doClick:function(){BI.DownListItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListItem.EVENT_CHANGE,this.getValue(),this)},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)}}),BI.DownListItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_item",BI.DownListItem),BI.DownListGroupItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListGroupItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-down-list-group-item",logic:{dynamic:!1},iconCls1:"dot-e-font",iconCls2:"pull-right-e-font"})},_init:function(){BI.DownListGroupItem.superclass._init.apply(this,arguments);var a=this.options,b=this;this.text=BI.createWidget({type:"bi.label",cls:"list-group-item-text",textAlign:"left",text:a.text,value:a.value,height:a.height}),this.icon1=BI.createWidget({type:"bi.icon_button",cls:a.iconCls1,width:36,forceNotSelected:!0,selected:this._digest(a.value)}),this.icon2=BI.createWidget({type:"bi.icon_button",cls:a.iconCls2,width:24,forceNotSelected:!0});var c=BI.createWidget({type:"bi.layout",width:24});BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.icon2,top:0,bottom:0,right:0}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("horizontal",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("left",this.icon1,this.text,c)})))),this.element.hover(function(){b.isEnabled()&&b.hover()},function(){b.isEnabled()&&b.dishover()})},_digest:function(a){var b=this.options;return a=BI.isArray(a)?a:[a],BI.any(a,function(a,c){return BI.contains(b.childValues,c)})},hover:function(){BI.DownListGroupItem.superclass.hover.apply(this,arguments),this.icon1.element.addClass("hover"),this.icon2.element.addClass("hover")},dishover:function(){BI.DownListGroupItem.superclass.dishover.apply(this,arguments),this.icon1.element.removeClass("hover"),this.icon2.element.removeClass("hover")},doClick:function(){BI.DownListGroupItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListGroupItem.EVENT_CHANGE,this.getValue())},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},setValue:function(a){this.icon1.setSelected(this._digest(a))}}),BI.DownListGroupItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group_item",BI.DownListGroupItem),BI.DownListPopup=BI.inherit(BI.Pane,{constants:{nextIcon:"pull-right-e-font",height:24,iconHeight:12,iconWidth:12,hgap:0,vgap:0,border:1},_defaultConfig:function(){var a=BI.DownListPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-popup",items:[],chooseType:BI.Selection.Multi})},_init:function(){BI.DownListPopup.superclass._init.apply(this,arguments),this.singleValues=[],this.childValueMap={},this.fatherValueMap={},this.items=BI.deepClone(this.options.items);var a=this,b=this.options,c=this._createChildren(this.items);this.popup=BI.createWidget({type:"bi.button_tree",items:BI.createItems(c,{},{adjustLength:-2}),layouts:[{type:"bi.vertical",hgap:this.constants.hgap,vgap:this.constants.vgap}],value:this._digest(b.value),chooseType:b.chooseType}),this.popup.on(BI.ButtonTree.EVENT_CHANGE,function(b,c){var d=b;if(BI.isNotNull(a.childValueMap[b])?(d=a.childValueMap[b],a.fireEvent(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,d,a.fatherValueMap[b])):a.fireEvent(BI.DownListPopup.EVENT_CHANGE,d,c),!BI.contains(a.singleValues,d)){var e=a.getValue(),f=[];BI.each(e,function(a,b){b.value!=d&&f.push(b)}),a.setValue(f)}}),BI.createWidget({type:"bi.vertical",element:this,items:[this.popup],vgap:5})},_createChildren:function(a){var b=this,c=[];return BI.each(a,function(d,e){var f={type:"bi.down_list_group",items:[]};if(BI.each(e,function(a,c){BI.isNotEmptyArray(c.children)&&!BI.isEmpty(c.el)?(c.type="bi.combo_group",c.cls="down-list-group",c.trigger="hover",c.isNeedAdjustWidth=!1,c.el.title=c.el.title||c.el.text,c.el.type="bi.down_list_group_item",c.el.logic={dynamic:!0},c.el.height=b.constants.height,c.el.iconCls2=b.constants.nextIcon,c.popup={lgap:1,el:{type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},innerVGap:5,maxHeight:378},c.el.childValues=[],BI.each(c.children,function(a,d){var e=BI.deepClone(c.el.value),f=BI.deepClone(d.value);b.singleValues.push(d.value),d.type="bi.down_list_item",d.extraCls=" child-down-list-item",d.title=d.title||d.text,d.textRgap=10,d.isNeedAdjustWidth=!1,d.logic={dynamic:!0},d.father=e,b.fatherValueMap[b._createChildValue(e,f)]=e,b.childValueMap[b._createChildValue(e,f)]=f,d.value=b._createChildValue(e,f),c.el.childValues.push(d.value)})):(c.type="bi.down_list_item",c.title=c.title||c.text,c.textRgap=10,c.isNeedAdjustWidth=!1,c.logic={dynamic:!0});var d={};d.el=c,f.items.push(d)}),b._isGroup(f.items)&&BI.each(f.items,function(a,c){b.singleValues.push(c.el.value)}),c.push(f),b._needSpliter(d,a.length)){var g=BI.createWidget({type:"bi.vertical",items:[{el:{type:"bi.layout",cls:"bi-down-list-spliter bi-split-top cursor-pointer",height:0}}],cls:"bi-down-list-spliter-container cursor-pointer",vgap:5,lgap:10,rgap:0});c.push(g)}}),c},_isGroup:function(a){return a.length>1},_needSpliter:function(a,b){return a0?1:0}},setValue:function(a){a=a||{},this.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT;var b=[],c=[];BI.isNotNull(a.year)&&(b.push(BI.DynamicDateCard.TYPE.YEAR),c.push(this._createValue(BI.DynamicDateCard.TYPE.YEAR,a.year))),BI.isNotNull(a.quarter)&&(b.push(BI.DynamicDateCard.TYPE.QUARTER),c.push(this._createValue(BI.DynamicDateCard.TYPE.QUARTER,a.quarter))),BI.isNotNull(a.month)&&(b.push(BI.DynamicDateCard.TYPE.MONTH),c.push(this._createValue(BI.DynamicDateCard.TYPE.MONTH,a.month))),BI.isNotNull(a.week)&&(b.push(BI.DynamicDateCard.TYPE.WEEK),c.push(this._createValue(BI.DynamicDateCard.TYPE.WEEK,a.week))),BI.isNotNull(a.day)&&(b.push(BI.DynamicDateCard.TYPE.DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.DAY,a.day))),BI.isNotNull(a.workDay)&&(b.push(BI.DynamicDateCard.TYPE.WORK_DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.WORK_DAY,a.workDay))),this.checkgroup.setValue(b),this.workDayBox.setSelected(BI.isNotNull(a.workDay)),this.resultPane.populate(this._getParamJson(c,a.position))},getValue:function(){var a=this,b={},c=this.checkgroup.getValue(),d=this.resultPane.getAllButtons();if(0!==c.length&&BI.each(d,function(c,d){var e=d.getValue();switch(e.dateType){case BI.DynamicDateCard.TYPE.YEAR:b.year=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.QUARTER:b.quarter=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.MONTH:b.month=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.WEEK:b.week=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.DAY:b.day=0===e.offset?-e.value:e.value}BI.isNull(e.dateType)&&(b.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT)}),this.workDayBox.isSelected()){var e=d[0].getValue();b.workDay=0===e.offset?-e.value:e.value}return b}}),BI.shortcut("bi.dynamic_date_card",BI.DynamicDateCard),BI.extend(BI.DynamicDateCard,{TYPE:{YEAR:1,QUARTER:2,MONTH:3,WEEK:4,DAY:5,WORK_DAY:6},OFFSET:{CURRENT:1,BEGIN:2,END:3}}),BI.DynamicDateCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow bi-border-radius",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW)}}]},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},_defaultState:function(){},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()}}),BI.DynamicDateCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW="BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_combo",BI.DynamicDateCombo),BI.extend(BI.DynamicDateCombo,{Static:1,Dynamic:2}),BI.DynamicDateParamItem=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-param-item",dateType:BI.DynamicDateCard.TYPE.YEAR,value:0,offset:0,height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.sign_editor",cls:"bi-border",height:22,validationChecker:function(a){return BI.isNaturalNumber(a)},value:b.value,ref:function(){a.editor=this},errorText:function(a){return BI.isEmptyString(a)?BI.i18nText("BI-Basic_Please_Input_Content"):BI.i18nText("BI-Please_Input_Natural_Number")},allowBlank:!1,listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]},width:60},{el:{type:"bi.label",height:24,text:this._getText()},width:b.dateType===BI.DynamicDateCard.TYPE.WORK_DAY?60:20},{type:"bi.text_value_combo",height:24,items:[{text:BI.i18nText("BI-Basic_Front"),value:0},{text:BI.i18nText("BI-Basic_Behind"),value:1}],ref:function(){a.offsetCombo=this},container:null,value:b.offset,listeners:[{eventName:BI.TextValueCombo.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]}]}},_getText:function(){var a="";switch(this.options.dateType){case BI.DynamicDateCard.TYPE.YEAR:a=BI.i18nText("BI-Basic_Year");break;case BI.DynamicDateCard.TYPE.QUARTER:a=BI.i18nText("BI-Basic_Single_Quarter");break;case BI.DynamicDateCard.TYPE.MONTH:a=BI.i18nText("BI-Basic_Month");break;case BI.DynamicDateCard.TYPE.WEEK:a=BI.i18nText("BI-Basic_Week");break;case BI.DynamicDateCard.TYPE.DAY:a=BI.i18nText("BI-Basic_Day");break;case BI.DynamicDateCard.TYPE.WORK_DAY:default:a=BI.i18nText("BI-Basic_Work_Day")}return a},setValue:function(a){a=a||{},a.value=a.value||0,a.offset=a.offset||0,this.editor.setValue(a.value),this.offsetCombo.setValue(a.offset)},getValue:function(){return{dateType:this.options.dateType,value:this.editor.getValue(),offset:this.offsetCombo.getValue()[0]}}}),BI.DynamicDateParamItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.dynamic_date_param_item",BI.DynamicDateParamItem),BI.DynamicDatePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-popup",width:248,height:344},_init:function(){BI.DynamicDatePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",shadow:!0,text:BI.i18nText("BI-Basic_Clear"),textHeight:c.buttonHeight-1,listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",shadow:!0,textHeight:c.buttonHeight-1,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,listeners:[{eventName:BI.DateCalendarPopup.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.EVENT_CHANGE)}}],ref:function(){a.ymd=this}}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.DynamicDatePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_popup",BI.DynamicDatePopup),BI.DynamicDateTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Date_Trigger_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text"); },title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.getDate();f=BI.DynamicDateHelper.getCalculation(d);var g=BI.print(f,"%Y-%x-%e");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day),"%Y-%X-%d")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split("-");a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2]}}}a.fireEvent(BI.DynamicDateTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_SPACE,function(){a.editor.isValid()&&a.editor.blur()}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>=0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day),"%Y-%X-%d");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue}}),BI.DynamicDateTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTrigger.EVENT_START="EVENT_START",BI.DynamicDateTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_trigger",BI.DynamicDateTrigger),BI.DynamicDateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateTimeCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateTimeCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateTimeCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate(),hour:0,minute:0,second:0}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateTimeCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()},isValid:function(){return this.trigger.isValid()}}),BI.DynamicDateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_time_combo",BI.DynamicDateTimeCombo),BI.extend(BI.DynamicDateTimeCombo,{Static:1,Dynamic:2}),BI.DynamicDateTimePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-time-popup",width:248,height:385},_init:function(){BI.DynamicDateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_Clear"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.vtape",items:[{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,ref:function(){a.ymd=this}},{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){}}]},height:40}]}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a.timeSelect.setValue(),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.timeSelect.setValue(),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.timeSelect.setValue({hour:c.hour,minute:c.minute,second:c.second}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){var a=this.dateTab.getSelect();return{type:a,value:a===BI.DynamicDateTimeCombo.Static?BI.extend(this.ymd.getValue(),this.timeSelect.getValue()):this.dynamicPane.getValue()}}}),BI.DynamicDateTimePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_time_popup",BI.DynamicDateTimePopup),BI.DynamicDateTimeSelect=BI.inherit(BI.Widget,{props:{baseCls:"bi-date-time-select bi-split-top"},render:function(){var a=this;return{type:"bi.center_adapt",items:[{type:"bi.vertical_adapt",items:[{el:{type:"bi.number_editor",ref:function(){a.hour=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<24},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-23"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkHour(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.HOUR);this.setValue(b)}}],width:60,height:24},lgap:14},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.minute=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkMinute(b),this.setValue(a._formatValueToDoubleDigit(b),BI.DynamicDateTimeSelect.MINUTE),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.MINUTE);this.setValue(b)}}],width:60,height:24},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.second=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkSecond(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}}],width:60,height:24}]}]}},_checkBorder:function(a){a=a||{},this._checkHour(a.hour),this._checkMinute(a.minute),this._checkSecond(a.second)},_checkHour:function(a){this.hour.setDownEnable(BI.parseInt(a)>0),this.hour.setUpEnable(BI.parseInt(a)<23)},_checkMinute:function(a){this.minute.setDownEnable(BI.parseInt(a)>0),this.minute.setUpEnable(BI.parseInt(a)<59)},_checkSecond:function(a){this.second.setDownEnable(BI.parseInt(a)>0),this.second.setUpEnable(BI.parseInt(a)<59)},_autoSwitch:function(a,b){var c=0,d=a+"";switch(b){case BI.DynamicDateTimeSelect.HOUR:c=2;break;case BI.DynamicDateTimeSelect.MINUTE:c=5}return 1===d.length&&BI.parseInt(d)>c&&(d="0"+d),2===d.length&&(b===BI.DynamicDateTimeSelect.HOUR?this.minute.focus():this.second.focus()),d},_formatValueToDoubleDigit:function(a){(BI.isNull(a)||BI.isEmptyString(a))&&(a=0);var b=BI.parseInt(a);return b<10&&(b="0"+b),b},_assertValue:function(a){return a=a||{},a.hour=this._formatValueToDoubleDigit(a.hour)||"00",a.minute=this._formatValueToDoubleDigit(a.minute)||"00",a.second=this._formatValueToDoubleDigit(a.second)||"00",a},getValue:function(){return{hour:BI.parseInt(this.hour.getValue()),minute:BI.parseInt(this.minute.getValue()),second:BI.parseInt(this.second.getValue())}},setValue:function(a){a=this._assertValue(a),this.hour.setValue(a.hour),this.minute.setValue(a.minute),this.second.setValue(a.second),this._checkBorder(a)}}),BI.DynamicDateTimeSelect.EVENT_CONFIRM="EVENT_CONFIRM",BI.shortcut("bi.dynamic_date_time_select",BI.DynamicDateTimeSelect),BI.extend(BI.DynamicDateTimeSelect,{HOUR:1,MINUTE:2}),BI.DynamicDateTimeTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-time-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTimeTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Basic_Date_Time_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text")},title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.DynamicDateHelper.getCalculation(d),g=BI.print(f,"%Y-%x-%e %H:%M:%S");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day,d.hour||0,d.minute||0,d.second||0),"%Y-%X-%d %H:%M:%S")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split(/-|\s|:/);a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2],hour:0|c[3],minute:0|c[4],second:0|c[5]}}}a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d %H:%M:%S"),"%Y-%x-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d %H:%M:%S"),"%Y-%X-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e %H:%M:%S"),"%Y-%x-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e %H:%M:%S"),"%Y-%X-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e %H:%M:%S");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day,c.hour||0,c.minute||0,c.second||0),"%Y-%X-%d %H:%M:%S");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue},isValid:function(){return this.editor.isValid()}}),BI.DynamicDateTimeTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeTrigger.EVENT_START="EVENT_START",BI.DynamicDateTimeTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTimeTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_time_trigger",BI.DynamicDateTimeTrigger),BI.SearchEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-search-editor bi-border bi-focus-shadow",height:24,errorText:"",watermark:BI.i18nText("BI-Basic_Search"),validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){this.options.height-=2,BI.SearchEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,hgap:1,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"close-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.SearchEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:{type:"bi.icon_label",cls:"search-font"},width:24},{el:a.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SearchEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SearchEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SearchEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SearchEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SearchEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SearchEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SearchEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SearchEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.SearchEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.SearchEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SearchEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SearchEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SearchEditor.EVENT_STOP)}),this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},getKeywords:function(){var a=this.editor.getValue(),b=a.match(/[\S]+/g);return BI.isEndWithBlank(a)?b.concat([" "]):b},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isEditing:function(){return this.editor.isEditing()},isValid:function(){return this.editor.isValid()}}),BI.SearchEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SearchEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SearchEditor.EVENT_BLUR="EVENT_BLUR",BI.SearchEditor.EVENT_CLICK="EVENT_CLICK",BI.SearchEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SearchEditor.EVENT_SPACE="EVENT_SPACE",BI.SearchEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.SearchEditor.EVENT_CLEAR="EVENT_CLEAR",BI.SearchEditor.EVENT_START="EVENT_START",BI.SearchEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SearchEditor.EVENT_STOP="EVENT_STOP",BI.SearchEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SearchEditor.EVENT_VALID="EVENT_VALID",BI.SearchEditor.EVENT_ERROR="EVENT_ERROR",BI.SearchEditor.EVENT_ENTER="EVENT_ENTER",BI.SearchEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SearchEditor.EVENT_REMOVE="EVENT_REMOVE",BI.SearchEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.search_editor",BI.SearchEditor),BI.SmallSearchEditor=BI.inherit(BI.SearchEditor,{_defaultConfig:function(){var a=BI.SmallSearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-small-search-editor",height:24})},_init:function(){BI.SmallSearchEditor.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.small_search_editor",BI.SmallSearchEditor),BI.TextEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.TextEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{extraCls:"bi-text-editor bi-border",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:"",height:24})},_init:function(){BI.TextEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;BI.isNumber(b.height)&&this.element.css({height:b.height-2}),BI.isNumber(b.width)&&this.element.css({width:b.width-2}),this.editor=BI.createWidget({type:"bi.editor",height:b.height-2,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,title:b.title,tipType:b.tipType,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.TextEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.TextEditor.EVENT_BLUR); diff --git a/dist/core.js b/dist/core.js index 93bacb986..c507c24a2 100644 --- a/dist/core.js +++ b/dist/core.js @@ -22,7 +22,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -30,10084 +30,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; - - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; - - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' - }; - - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; - - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; - - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; - - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); - - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; - - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; - - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; - - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; - - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); - - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; - - /*--------------------------------------------------------------------------*/ - - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } - - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; - } - - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } - - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; - } - - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } - return false; - } - - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); - } - return result; - } - - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; - - while (++index < length) { - array[offset + index] = values[index]; - } - return array; - } - - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; - - if (initAccum && length) { - accumulator = array[++index]; - } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); - } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } - } - return false; - } - - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); - - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); - } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; - } - - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } - - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } - - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; - - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); - - while (++index < n) { - result[index] = iteratee(index); - } - return result; - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } - - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } - - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; - - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; - - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; - - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; - } - - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); - - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } - - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } - - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; - - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } - - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); - - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } - - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; - } - - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; - }); - - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); - } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); - }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; - } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); - } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); - } - - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; - } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /*--------------------------------------------------------------------------*/ + + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; + + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); + + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); + + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; + + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; + } + } + + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); + + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; + + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. - } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; - } + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; - } + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; + } + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - /*------------------------------------------------------------------------*/ + if (newValue === undefined) { + newValue = srcValue; + } + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; + } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; + + var isCommon = newValue === undefined; + + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; + } + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); + } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); + } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; } + else { + seen = iteratee ? [] : result; + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } + } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { + return -1; + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; + + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } + + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; + + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func); + + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; + } + object = object.buffer; + other = other.buffer; + + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; - }); + case errorTag: + return object.name == other.name && object.message == other.message; - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; - }); + case mapTag: + var convert = mapToArray; - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; - }; - }); + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; + } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); }); - - LazyWrapper.prototype.compact = function() { - return this.filter(identity); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; }; - - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return new Ctor; + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return new Ctor; + + case symbolTag: + return cloneSymbol(object); + } + } + + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; + }); - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); + } + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; }; - - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); - - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; }; - - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); }; - - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; + } + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; + } + if (isPrototype(value)) { + return !baseKeys(value).length; + } + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; + }); + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); + }); + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; }; - - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; - - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); - - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); + + /*------------------------------------------------------------------------*/ + + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; + }; - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); + }; + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; + }; + }); - names.push({ 'name': methodName, 'func': lodashFunc }); - } - }); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; + }; + }); - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); + }; + }); - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - /*--------------------------------------------------------------------------*/ + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); } + return this.map(function(value) { + return baseInvoke(value, path, args); + }); + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; + }); + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 基本函数 @@ -10675,6 +10711,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -10787,12 +10824,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - args.unshift(true); - return $.extend.apply($, args); } }); diff --git a/dist/demo.js b/dist/demo.js index 446f581e0..9b782c270 100644 --- a/dist/demo.js +++ b/dist/demo.js @@ -6126,7 +6126,30 @@ Demo.HtapeLayout = BI.inherit(BI.Widget, { }; } }); -BI.shortcut("demo.htape", Demo.HtapeLayout);/** +BI.shortcut("demo.htape", Demo.HtapeLayout);Demo.InlineVerticalLayout = BI.inherit(BI.Widget, { + props: { + baseCls: "demo-absolute" + }, + render: function () { + return { + type: "bi.inline_vertical_adapt", + items: [{ + type: "bi.label", + text: "绝对布局", + cls: "layout-bg1", + width: 300, + height: 200 + }, { + type: "bi.label", + text: "绝对布局", + cls: "layout-bg1", + width: 300, + height: 100 + }] + }; + } +}); +BI.shortcut("demo.inline_vertical", Demo.InlineVerticalLayout);/** * Created by User on 2017/3/22. */ Demo.LeftRightVerticalAdaptLayout = BI.inherit(BI.Widget, { diff --git a/dist/fineui.ie.js b/dist/fineui.ie.js index ed127fdd7..327afa1f1 100644 --- a/dist/fineui.ie.js +++ b/dist/fineui.ie.js @@ -264,7 +264,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -272,10084 +272,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + /*--------------------------------------------------------------------------*/ - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + /** Used to generate unique IDs. */ + var idCounter = 0; - /*--------------------------------------------------------------------------*/ + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; + if (index < 0) { + return false; } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; } + } - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; } - return result; + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } } + return true; + } - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - while (++index < length) { - array[offset + index] = values[index]; + if (newValue === undefined) { + newValue = srcValue; } - return array; + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; + var isCommon = newValue === undefined; - if (initAccum && length) { - accumulator = array[++index]; + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); } - return false; - } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; + else { + seen = iteratee ? [] : result; } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; + partials = holders = undefined; } + var data = isBindKey ? undefined : getData(func); - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - while (++index < n) { - result[index] = iteratee(index); + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; } - return result; - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } + object = object.buffer; + other = other.buffer; - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + case errorTag: + return object.name == other.name && object.message == other.message; - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + case mapTag: + var convert = mapToArray; - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - while (length--) { - if (array[length] === placeholder) { - ++result; - } + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; } + bitmask |= COMPARE_UNORDERED_FLAG; + + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); return result; + + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); + }); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); + case boolTag: + case dateTag: + return new Ctor(+object); - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } + case dataViewTag: + return cloneDataView(object, isDeep); - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; + case mapTag: + return new Ctor; - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } + case numberTag: + case stringTag: + return new Ctor(object); - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); + case regexpTag: + return cloneRegExp(object); - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } + case setTag: + return new Ctor; - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; + case symbolTag: + return cloneSymbol(object); } + } - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; }); - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); + }; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } - return this; + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; } - - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; } - - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { - return false; + if (isPrototype(value)) { + return !baseKeys(value).length; } - - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); } - /*------------------------------------------------------------------------*/ - - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; } - - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; - - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); - - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); - - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; - - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; }); - - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; - - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); }); - - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); - - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; + }; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); - - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); - LazyWrapper.prototype.compact = function() { - return this.filter(identity); - }; + /*------------------------------------------------------------------------*/ - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; }; - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); - }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; }; + }); - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; }; + }); - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); - }; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); }; + }); - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; - }; - }); + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); + } + return this.map(function(value) { + return baseInvoke(value, path, args); }); - - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); - - names.push({ 'name': methodName, 'func': lodashFunc }); - } + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; }); - - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; - - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; - - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; - - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } - - /*--------------------------------------------------------------------------*/ - - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; - - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; - } + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 基本函数 @@ -10917,6 +10953,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -11029,12 +11066,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - 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a=[],b=localStorage.length;b>=0;b--){var c=localStorage.key(b);if(c){var d=BI.Cache._getKeyPrefix();0===c.indexOf(d)&&(a[a.length]=c.substring(d.length))}}return a},addCookie:function(a,b,c,d){var e=a+"="+escape(b);if(d&&d>0){var f=new Date;f.setTime(BI.getTime()+3600*d*1e3),e=e+"; expires="+f.toGMTString()}c&&(e=e+"; path="+c),document.cookie=e},getCookie:function(a){var b,c=new RegExp("(^| )"+a+"=([^;]*)(;|$)");return(b=document.cookie.match(c))?unescape(b[2]):null},deleteCookie:function(a,b){var c=new Date;c.setTime(BI.getTime()-1e4);var d=a+"=v; expires="+c.toGMTString();b&&(d=d+"; path="+b),document.cookie=d}},BI.CellSizeAndPositionManager=function(a,b,c){this._cellSizeGetter=b,this._cellCount=a,this._estimatedCellSize=c,this._cellSizeAndPositionData={},this._lastMeasuredIndex=-1},BI.CellSizeAndPositionManager.prototype={constructor:BI.CellSizeAndPositionManager,configure:function(a,b){this._cellCount=a,this._estimatedCellSize=b},getCellCount:function(){return this._cellCount},getEstimatedCellSize:function(){return this._estimatedCellSize},getLastMeasuredIndex:function(){return this._lastMeasuredIndex},getSizeAndPositionOfCell:function(a){if(!(a<0||a>=this._cellCount)){if(a>this._lastMeasuredIndex){for(var b=this.getSizeAndPositionOfLastMeasuredCell(),c=b.offset+b.size,d=this._lastMeasuredIndex+1;d<=a;d++){var e=this._cellSizeGetter(d);null==e||isNaN(e)||(this._cellSizeAndPositionData[d]={offset:c,size:e},c+=e)}this._lastMeasuredIndex=a}return this._cellSizeAndPositionData[a]}},getSizeAndPositionOfLastMeasuredCell:function(){return this._lastMeasuredIndex>=0?this._cellSizeAndPositionData[this._lastMeasuredIndex]:{offset:0,size:0}},getTotalSize:function(){var a=this.getSizeAndPositionOfLastMeasuredCell();return a.offset+a.size+(this._cellCount-this._lastMeasuredIndex-1)*this._estimatedCellSize},getUpdatedOffsetForIndex:function(a,b,c,d){var e,f=this.getSizeAndPositionOfCell(d),g=f.offset,h=g-b+f.size;switch(a){case"start":e=g;break;case"end":e=h;break;case"center":e=g-(b-f.size)/2;break;default:e=Math.max(h,Math.min(g,c))}var i=this.getTotalSize();return Math.max(0,Math.min(i-b,e))},getVisibleCellRange:function(a,b){var c=this.getTotalSize();if(0===c)return{};var d=b+a,e=this._findNearestCell(b),f=this.getSizeAndPositionOfCell(e);b=f.offset+f.size;for(var g=e;bc&&(a=d-1)}if(b>0)return b-1},_exponentialSearch:function(a,b){for(var c=1;a=a?this._binarySearch(c,0,a):this._exponentialSearch(c,a)}}},BI.ScalingCellSizeAndPositionManager=function(a,b,c,d){this._cellSizeAndPositionManager=new BI.CellSizeAndPositionManager(a,b,c),this._maxScrollSize=d||1e7},BI.ScalingCellSizeAndPositionManager.prototype={constructor:BI.ScalingCellSizeAndPositionManager,configure:function(){this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager,arguments)},getCellCount:function(){return this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDO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this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDOMZBLZWPDWYYGDSTTHCSQSCCRSSSYSLFYBFNTYJSZDFNDPDHDZZMBBLSLCMYFFGTJJQWFTMTPJWFNLBZCMMJTGBDZLQLPYFHYYMJYLSDCHDZJWJCCTLJCLDTLJJCPDDSQDSSZYBNDBJLGGJZXSXNLYCYBJXQYCBYLZCFZPPGKCXZDZFZTJJFJSJXZBNZYJQTTYJYHTYCZHYMDJXTTMPXSPLZCDWSLSHXYPZGTFMLCJTYCBPMGDKWYCYZCDSZZYHFLYCTYGWHKJYYLSJCXGYWJCBLLCSNDDBTZBSCLYZCZZSSQDLLMQYYHFSLQLLXFTYHABXGWNYWYYPLLSDLDLLBJCYXJZMLHLJDXYYQYTDLLLBUGBFDFBBQJZZMDPJHGCLGMJJPGAEHHBWCQXAXHHHZCHXYPHJAXHLPHJPGPZJQCQZGJJZZUZDMQYYBZZPHYHYBWHAZYJHYKFGDPFQSDLZMLJXKXGALXZDAGLMDGXMWZQYXXDXXPFDMMSSYMPFMDMMKXKSYZYSHDZKXSYSMMZZZMSYDNZZCZXFPLSTMZDNMXCKJMZTYYMZMZZMSXHHDCZJEMXXKLJSTLWLSQLYJZLLZJSSDPPMHNLZJCZYHMXXHGZCJMDHXTKGRMXFWMCGMWKDTKSXQMMMFZZYDKMSCLCMPCGMHSPXQPZDSSLCXKYXTWLWJYAHZJGZQMCSNXYYMMPMLKJXMHLMLQMXCTKZMJQYSZJSYSZHSYJZJCDAJZYBSDQJZGWZQQXFKDMSDJLFWEHKZQKJPEYPZYSZCDWYJFFMZZYLTTDZZEFMZLBNPPLPLPEPSZALLTYLKCKQZKGENQLWAGYXYDPXLHSXQQWQCQXQCLHYXXMLYCCWLYMQYSKGCHLCJNSZKPYZKCQZQLJPDMDZHLASXLBYDWQLWDNBQCRYDDZTJYBKBWSZDXDTNPJDTCTQDFXQQMGNXECLTTBKPWSLCTYQLPWYZZKLPYGZCQQPLLKCCYLPQMZCZQCLJSLQZDJXLDDHPZQDLJJXZQDXYZQKZLJCYQDYJPPYPQYKJYRMPCBYMCXKLLZLLFQPYLLLMBSGLCYSSLRSYSQTMXYXZQZFDZUYSYZTFFMZZSMZQHZSSCCMLYXWTPZGXZJGZGSJSGKDDHTQGGZLLBJDZLCBCHYXYZHZFYWXYZYMSDBZZYJGTSMTFXQYXQSTDGSLNXDLRYZZLRYYLXQHTXSRTZNGZXBNQQZFMYKMZJBZYMKBPNLYZPBLMCNQYZZZSJZHJCTZKHYZZJRDYZHNPXGLFZTLKGJTCTSSYLLGZRZBBQZZKLPKLCZYSSUYXBJFPNJZZXCDWXZYJXZZDJJKGGRSRJKMSMZJLSJYWQSKYHQJSXPJZZZLSNSHRNYPZTWCHKLPSRZLZXYJQXQKYSJYCZTLQZYBBYBWZPQDWWYZCYTJCJXCKCWDKKZXSGKDZXWWYYJQYYTCYTDLLXWKCZKKLCCLZCQQDZLQLCSFQCHQHSFSMQZZLNBJJZBSJHTSZDYSJQJPDLZCDCWJKJZZLPYCGMZWDJJBSJQZSYZYHHXJPBJYDSSXDZNCGLQMBTSFSBPDZDLZNFGFJGFSMPXJQLMBLGQCYYXBQKDJJQYRFKZTJDHCZKLBSDZCFJTPLLJGXHYXZCSSZZXSTJYGKGCKGYOQXJPLZPBPGTGYJZGHZQZZLBJLSQFZGKQQJZGYCZBZQTLDXRJXBSXXPZXHYZYCLWDXJJHXMFDZPFZHQHQMQGKSLYHTYCGFRZGNQXCLPDLBZCSCZQLLJBLHBZCYPZZPPDYMZZSGYHCKCPZJGSLJLNSCDSLDLXBMSTLDDFJMKDJDHZLZXLSZQPQPGJLLYBDSZGQLBZLSLKYYHZTTNTJYQTZZPSZQZTLLJTYYLLQLLQYZQLBDZLSLYYZYMDFSZSNHLXZNCZQZPBWSKRFBSYZMTHBLGJPMCZZLSTLXSHTCSYZLZBLFEQHLXFLCJLYLJQCBZLZJHHSSTBRMHXZHJZCLXFNBGXGTQJCZTMSFZKJMSSNXLJKBHSJXNTNLZDNTLMSJXGZJYJCZXYJYJWRWWQNZTNFJSZPZSHZJFYRDJSFSZJZBJFZQZZHZLXFYSBZQLZSGYFTZDCSZXZJBQMSZKJRHYJZCKMJKHCHGTXKXQGLXPXFXTRTYLXJXHDTSJXHJZJXZWZLCQSBTXWXGXTXXHXFTSDKFJHZYJFJXRZSDLLLTQSQQZQWZXSYQTWGWBZCGZLLYZBCLMQQTZHZXZXLJFRMYZFLXYSQXXJKXRMQDZDMMYYBSQBHGZMWFWXGMXLZPYYTGZYCCDXYZXYWGSYJYZNBHPZJSQSYXSXRTFYZGRHZTXSZZTHCBFCLSYXZLZQMZLMPLMXZJXSFLBYZMYQHXJSXRXSQZZZSSLYFRCZJRCRXHHZXQYDYHXSJJHZCXZBTYNSYSXJBQLPXZQPYMLXZKYXLXCJLCYSXXZZLXDLLLJJYHZXGYJWKJRWYHCPSGNRZLFZWFZZNSXGXFLZSXZZZBFCSYJDBRJKRDHHGXJLJJTGXJXXSTJTJXLYXQFCSGSWMSBCTLQZZWLZZKXJMLTMJYHSDDBXGZHDLBMYJFRZFSGCLYJBPMLYSMSXLSZJQQHJZFXGFQFQBPXZGYYQXGZTCQWYLTLGWSGWHRLFSFGZJMGMGBGTJFSYZZGZYZAFLSSPMLPFLCWBJZCLJJMZLPJJLYMQDMYYYFBGYGYZMLYZDXQYXRQQQHSYYYQXYLJTYXFSFSLLGNQCYHYCWFHCCCFXPYLYPLLZYXXXXXKQHHXSHJZCFZSCZJXCPZWHHHHHAPYLQALPQAFYHXDYLUKMZQGGGDDESRNNZLTZGCHYPPYSQJJHCLLJTOLNJPZLJLHYMHEYDYDSQYCDDHGZUNDZCLZYZLLZNTNYZGSLHSLPJJBDGWXPCDUTJCKLKCLWKLLCASSTKZZDNQNTTLYYZSSYSSZZRYLJQKCQDHHCRXRZYDGRGCWCGZQFFFPPJFZYNAKRGYWYQPQXXFKJTSZZXSWZDDFBBXTBGTZKZNPZZPZXZPJSZBMQHKCYXYLDKLJNYPKYGHGDZJXXEAHPNZKZTZCMXCXMMJXNKSZQNMNLWBWWXJKYHCPSTMCSQTZJYXTPCTPDTNNPGLLLZSJLSPBLPLQHDTNJNLYYRSZFFJFQWDPHZDWMRZCCLODAXNSSNYZRESTYJWJYJDBCFXNMWTTBYLWSTSZGYBLJPXGLBOCLHPCBJLTMXZLJYLZXCLTPNCLCKXTPZJSWCYXSFYSZDKNTLBYJCYJLLSTGQCBXRYZXBXKLYLHZLQZLNZCXWJZLJZJNCJHXMNZZGJZZXTZJXYCYYCXXJYYXJJXSSSJSTSSTTPPGQTCSXWZDCSYFPTFBFHFBBLZJCLZZDBXGCXLQPXKFZFLSYLTUWBMQJHSZBMDDBCYSCCLDXYCDDQLYJJWMQLLCSGLJJSYFPYYCCYLTJANTJJPWYCMMGQYYSXDXQMZHSZXPFTWWZQSWQRFKJLZJQQYFBRXJHHFWJJZYQAZMYFRHCYYBYQWLPEXCCZSTYRLTTDMQLYKMBBGMYYJPRKZNPBSXYXBHYZDJDNGHPMFSGMWFZMFQMMBCMZZCJJLCNUXYQLMLRYGQZCYXZLWJGCJCGGMCJNFYZZJHYCPRRCMTZQZXHFQGTJXCCJEAQCRJYHPLQLSZDJRBCQHQDYRHYLYXJSYMHZYDWLDFRYHBPYDTSSCNWBXGLPZMLZZTQSSCPJMXXYCSJYTYCGHYCJWYRXXLFEMWJNMKLLSWTXHYYYNCMMCWJDQDJZGLLJWJRKHPZGGFLCCSCZMCBLTBHBQJXQDSPDJZZGHGLFQYWBZYZJLTSTDHQHCTCBCHFLQMPWDSHYYTQWCNZZJTLBYMBPDYYYXSQKXWYYFLXXNCWCXYPMAELYKKJMZZZBRXYYQJFLJPFHHHYTZZXSGQQMHSPGDZQWBWPJHZJDYSCQWZKTXXSQLZYYMYSDZGRXCKKUJLWPYSYSCSYZLRMLQSYLJXBCXTLWDQZPCYCYKPPPNSXFYZJJRCEMHSZMSXLXGLRWGCSTLRSXBZGBZGZTCPLUJLSLYLYMTXMTZPALZXPXJTJWTCYYZLBLXBZLQMYLXPGHDSLSSDMXMBDZZSXWHAMLCZCPJMCNHJYSNSYGCHSKQMZZQDLLKABLWJXSFMOCDXJRRLYQZKJMYBYQLYHETFJZFRFKSRYXFJTWDSXXSYSQJYSLYXWJHSNLXYYXHBHAWHHJZXWMYLJCSSLKYDZTXBZSYFDXGXZJKHSXXYBSSXDPYNZWRPTQZCZENYGCXQFJYKJBZMLJCMQQXUOXSLYXXLYLLJDZBTYMHPFSTTQQWLHOKYBLZZALZXQLHZWRRQHLSTMYPYXJJXMQSJFNBXYXYJXXYQYLTHYLQYFMLKLJTMLLHSZWKZHLJMLHLJKLJSTLQXYLMBHHLNLZXQJHXCFXXLHYHJJGBYZZKBXSCQDJQDSUJZYYHZHHMGSXCSYMXFEBCQWWRBPYYJQTYZCYQYQQZYHMWFFHGZFRJFCDPXNTQYZPDYKHJLFRZXPPXZDBBGZQSTLGDGYLCQMLCHHMFYWLZYXKJLYPQHSYWMQQGQZMLZJNSQXJQSYJYCBEHSXFSZPXZWFLLBCYYJDYTDTHWZSFJMQQYJLMQXXLLDTTKHHYBFPWTYYSQQWNQWLGWDEBZWCMYGCULKJXTMXMYJSXHYBRWFYMWFRXYQMXYSZTZZTFYKMLDHQDXWYYNLCRYJBLPSXCXYWLSPRRJWXHQYPHTYDNXHHMMYWYTZCSQMTSSCCDALWZTCPQPYJLLQZYJSWXMZZMMYLMXCLMXCZMXMZSQTZPPQQBLPGXQZHFLJJHYTJSRXWZXSCCDLXTYJDCQJXSLQYCLZXLZZXMXQRJMHRHZJBHMFLJLMLCLQNLDXZLLLPYPSYJYSXCQQDCMQJZZXHNPNXZMEKMXHYKYQLXSXTXJYYHWDCWDZHQYYBGYBCYSCFGPSJNZDYZZJZXRZRQJJYMCANYRJTLDPPYZBSTJK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BI.first(this.children)},getLastChild:function(){return BI.last(this.children)},setLeft:function(a){this.left=a},getLeft:function(){return this.left},setRight:function(a){this.right=a},getRight:function(){return this.right},setParent:function(a){this.parent=a},getParent:function(){return this.parent},getChild:function(a){return this.children[a]},getChildIndex:function(a){return BI.findIndex(this.children,function(b,c){return c.get("id")===a})},removeChild:function(a){this.removeChildByIndex(this.getChildIndex(a))},removeChildByIndex:function(a){var b=this.getChild(a-1),c=this.getChild(a+1);null!=b&&b.setRight(c||null),null!=c&&c.setLeft(b||null),this.children.splice(a,1)},removeAllChilds:function(){this.children=[]},addChild:function(a,b){var c=null;c=BI.isUndefined(b)?this.children.length-1:b-1,a.setParent(this),c>=0&&(this.getChild(c)&&this.getChild(c).setRight(a),a.setLeft(this.getChild(c))),BI.isUndefined(b)?this.children.push(a):this.children.splice(b,0,a)},equals:function(a){return this===a||this.id===a.id},clear:function(){this.parent=null,this.left=null,this.right=null,this.children=[]}},BI.extend(BI.Tree,{transformToArrayFormat:function(a,b){if(!a)return[];var c=[];if(BI.isArray(a))for(var d=0,e=a.length;d=this.x&&a<=this.x+this.w&&b>=this.y&&b<=this.y+this.h)},getPosition:function(){var a=[];return a.push(this.x+this.w/2),a.push(this.y+this.h/2),a}},BI.BehaviorFactory={createBehavior:function(a,b){var c;switch(a){case"highlight":c=BI.HighlightBehavior;break;case"redmark":c=BI.RedMarkBehavior}return new c(b)}},BI.Behavior=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.Behavior.superclass._defaultConfig.apply(this,arguments),{rule:function(){return!0}})},_init:function(){BI.Behavior.superclass._init.apply(this,arguments)},doBehavior:function(){}}),BI.Layout=BI.inherit(BI.Widget,{props:function(){return{scrollable:null,scrollx:!1,scrolly:!1,items:[]}},render:function(){this._init4Margin(),this._init4Scroll()},_init4Margin:function(){this.options.top&&this.element.css("top",this.options.top),this.options.left&&this.element.css("left",this.options.left),this.options.bottom&&this.element.css("bottom",this.options.bottom),this.options.right&&this.element.css("right",this.options.right)},_init4Scroll:function(){switch(this.options.scrollable){case!0:this.element.css("overflow","auto");break;case!1:this.element.css("overflow","hidden")}this.options.scrollx&&this.element.css({"overflow-x":"auto","overflow-y":"hidden"}),this.options.scrolly&&this.element.css({"overflow-x":"hidden","overflow-y":"auto"})},appendFragment:function(a){this.element.append(a)},_mountChildren:function(){var a=this,b=BI.Widget._renderEngine.createFragment(),c=!1;BI.each(this._children,function(d,e){e.element!==a.element&&(b.appendChild(e.element[0]),c=!0)}),c===!0&&this.appendFragment(b)},_getChildName:function(a){return a+""},_addElement:function(a,b){var c,d=this;return this.hasWidget(this._getChildName(a))?c=this.getWidgetByName(this._getChildName(a)):(c=BI.createWidget(b),c.on(BI.Events.DESTROY,function(){BI.each(d._children,function(a,b){b===c&&(BI.remove(d._children,b),d.removeItemAt(0|a))})}),this.addWidget(this._getChildName(a),c)),c},_getOptions:function(a){return a instanceof BI.Widget&&(a=a.options),a=BI.stripEL(a),a instanceof BI.Widget&&(a=a.options),a},_compare:function(a,b){function c(a,b,e,f){if(a===b)return 0!==a||1/a===1/b;if(null==a||null==b)return a===b;var g=Object.prototype.toString.call(a);switch(g){case"[object RegExp]":case"[object String]":return""+a==""+b;case"[object Number]":return+a!==+a?+b!==+b:0===+a?1/+a===1/b:+a===+b;case"[object Date]":case"[object 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a>0?this._children[this._getChildName(a-1)].element.after(c.element):c.element.prependTo(this._getWrapper()),c._mount(),c}},removeItemAt:function(a){a=BI.isArray(a)?a:[a];for(var b=[],c=[],d={},e=0,f=this.options.items.length;ethis.options.items.length-1)return!1;var c=this._children[this._getChildName(a)];return c.shouldUpdate?c.shouldUpdate(this._getOptions(b))===!0:null},updateItemAt:function(a,b){if(!(a<0||a>this.options.items.length-1)){var c,d=this._children[this._getChildName(a)];if(c=d.update(this._getOptions(b)))return c;var e=this._children[this._getChildName(a)];delete this._children[this._getChildName(a)],this.options.items.splice(a,1);var f=this._addElement(a,b);this.options.items.splice(a,0,b),this._children[this._getChildName(a)]=f,a>0?this._children[this._getChildName(a-1)].element.after(f.element):f.element.prependTo(this._getWrapper()),e._destroy(),f._mount()}},addItems:function(a){var b=this,c=this.options,d=BI.Widget._renderEngine.createFragment(),e=[];BI.each(a,function(a,f){var g=b._addElement(c.items.length,f);b._children[b._getChildName(c.items.length)]=g,c.items.push(f),e.push(g),d.appendChild(g.element[0])}),this._isMounted&&(this._getWrapper().append(d),BI.each(e,function(a,b){b._mount()}))},prependItems:function(a){var b=this;a=a||[];for(var c=BI.Widget._renderEngine.createFragment(),d=[],e=a.length-1;e>=0;e--){this._addItemAt(0,a[e]);var f=this._addElement(0,a[e]);b._children[b._getChildName(0)]=f,this.options.items.unshift(a[e]),d.push(f),c.appendChild(f.element[0])}this._isMounted&&(this._getWrapper().prepend(c),BI.each(d,function(a,b){b._mount()}))},getValue:function(){var a,b=this,c=[];return BI.each(this.options.items,function(d){if(a=b._children[b._getChildName(d)]){var e=a.getValue();e=BI.isArray(e)?e:[e],c=c.concat(e)}}),c},setValue:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setValue(a)})},setText:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setText(a)})},patchItem:function(a,b,c){var d=this.shouldUpdateItem(c,b);if(d===!0||null===d&&!this._compare(a,b))return this.updateItemAt(c,b)},updateChildren:function(a,b){function c(a,b,c,d){return a=j._getOptions(a),b=j._getOptions(b),BI.isKey(a.key)?a.key===b.key:c>=0?c===d:void 0}function d(a,b){var c=j._getOptions(a),d=null==c.key?j._getChildName(b):c.key;return s[d]=j._addElement(d,a)}function e(a,b,c,e){for(;c<=e;++c){var f=d(b[c],c);g(f,a,!1,c)}}function f(a,b,c){for(;b<=c;++b){var d=j._getOptions(a[b]),e=null==d.key?j._getChildName(b):d.key;s[e]._destroy()}}function g(a,b,c,d){a=j._getOptions(a),b=b&&j._getOptions(b);var e=BI.isKey(a.key)?a.key:j._getChildName(d);if(b&&s[b.key]){var f,g=BI.isKey(b.key)?b.key:j._getChildName(d);f=c?s[g].element.next():s[g].element,f.length>0?f.before(s[e].element):j._getWrapper().append(s[e].element)}else j._getWrapper().append(s[e].element)}var h,i,j=this,k=0,l=0,m=a.length-1,n=a[0],o=a[m],p=b.length-1,q=b[0],r=b[p],s={};for(BI.each(a,function(a,b){b=j._getOptions(b);var c=null==b.key?a:b.key;BI.isKey(c)&&(s[c]=j._children[j._getChildName(a)])});k<=m&&l<=p;)if(BI.isNull(n))n=a[++k];else if(BI.isNull(o))o=a[--m];else if(c(n,q,k,l))i=this.patchItem(n,q,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],n=a[++k],q=b[++l];else if(c(o,r,m,p))i=this.patchItem(o,r,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],o=a[--m],r=b[--p];else if(c(n,r))i=this.patchItem(n,r,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],g(n,o,!0),n=a[++k],r=b[--p];else if(c(o,q))i=this.patchItem(o,q,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],g(o,n),o=a[--m],q=b[++l];else{var t=d(q);g(t,n),q=b[++l]}return k>m?(h=BI.isNull(b[p+1])?null:b[p+1],e(h,b,l,p)):l>p&&f(a,k,m),this._children={},BI.each(b,function(a,b){var c=j._getOptions(b),d=null==c.key?j._getChildName(a):c.key;s[d]._mount(),j._children[j._getChildName(a)]=s[d]}),i},update:function(a){var b=this.options,c=a.items||[],d=this.updateChildren(b.items,c);return this.options.items=c,d},stroke:function(a){var b=this;BI.each(a,function(a,c){c&&b._addElement(a,c)})},removeWidget:function(a){var b;BI.isWidget(a)?BI.each(this._children,function(c,d){d===a&&(b=c)}):b=a,b&&this._removeItemAt(0|b)},empty:function(){BI.Layout.superclass.empty.apply(this,arguments),this.options.items=[]},destroy:function(){BI.Layout.superclass.destroy.apply(this,arguments),this.options.items=[]},populate:function(a){this.options;return a=a||[],this._isMounted?void 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BI.extend(BI.Action.superclass._defaultConfig.apply(this,arguments),{src:null,tar:null})},_init:function(){BI.Action.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){}, actionBack:function(a,b,c){}}),BI.ActionFactory={createAction:function(a,b){var c;switch(a){case"show":c=BI.ShowAction}return new c(b)}},BI.ShowAction=BI.inherit(BI.Action,{_defaultConfig:function(){return BI.extend(BI.ShowAction.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.ShowAction.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){b=b||this.options.tar,b.setVisible(!0),c&&c()},actionBack:function(a,b,c){a=a||this.options.tar,a.setVisible(!1),c&&c()}}),function(){function isEmpty(a){var b=""===a||null===a||void 0===a;return b}function isInvalidDate(a){return"Invalid Date"==a||"NaN"==a}function _eFormat(a,b){function c(a,b){var c=a<0?(a*=-1,"-"):"",h="",i=a>0&&a<1?"floor":"ceil",j=Math[i](Math.log(a)/Math.log(10));if(!isFinite(j))return 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self?self:this,_global.BI||(_global.BI={}),BI.cjkEncode=function(a){if("string"!=typeof a)return a;for(var b="",c=0;c=128||91===d||93===d?"["+d.toString(16)+"]":a.charAt(c)}return b},BI.cjkDecode=function(text){if(null==text)return"";if(!isNaN(text)||text.indexOf("[")==-1)return text;for(var newText="",i=0;ii+1){var subText=text.substring(i+1,rightIdx);subText.length>0&&(ch=String.fromCharCode(eval("0x"+subText))),i=rightIdx}}newText+=ch}return newText},BI.htmlEncode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/\"/g,""").replace(//g,">").replace(/\s/g," ")},BI.htmlDecode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/"/g,'"').replace(/</g,"<").replace(/>/g,">").replace(/ /g," ")},BI.cjkEncodeDO=function(a){if(BI.isPlainObject(a)){var b={};return _.each(a,function(a,c){"string"!=typeof a&&(a=BI.jsonEncode(a)),c=BI.cjkEncode(c),b[c]=BI.cjkEncode(a)}),b}return a},BI.jsonEncode=function(a){var b=!!{}.hasOwnProperty,c={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},d=function(a){return/["\\\x00-\x1f]/.test(a)?'"'+a.replace(/([\x00-\x1f\\"])/g,function(a,b){var d=c[b];return d?d:(d=b.charCodeAt(),"\\u00"+Math.floor(d/16).toString(16)+(d%16).toString(16))})+'"':'"'+a+'"'},e=function(a){var b,c,d,e=["["],f=a.length;for(c=0;c2?BI.Date._MN[b.getMonth()]:d<2?b.getMonth()+1:BI.leftPad(b.getMonth()+1+"",2,"0");break;case"d":c=d>1?BI.leftPad(b.getDate()+"",2,"0"):b.getDate();break;case"h":var f=b.getHours()%12;0===f&&(f=12),c=d>1?BI.leftPad(f+"",2,"0"):f;break;case"H":c=d>1?BI.leftPad(b.getHours()+"",2,"0"):b.getHours();break;case"m":c=d>1?BI.leftPad(b.getMinutes()+"",2,"0"):b.getMinutes();break;case"s":c=d>1?BI.leftPad(b.getSeconds()+"",2,"0"):b.getSeconds();break;case"a":c=b.getHours()<12?"am":"pm";break;case"z":c=BI.getTimezone(b);break;default:c=a.str}return c}if(!a)return"";var d=b.length,e="";if(d>0){for(var f=b.charAt(0),g=0,h=f,i=1;iBI.Widget._renderEngine.createElement("body").outerWidth()&&(l-=k.element.outerWidth()+15),m+k.element.outerHeight()>BI.Widget._renderEngine.createElement("body").outerHeight()?(m-=k.element.outerHeight()+15,!f.belowMouse&&(m=Math.min(m,h.top-k.element.outerHeight()-5))):!f.belowMouse&&(m=Math.max(m,j)),k.element.css({left:l<0?0:l+"px",top:m<0?0:m+"px"}),k.element.hover(function(){g.remove(b),e.element.trigger("mouseleave.title"+e.getName())}),this},add:function(a,b){return this.has(a)?this:(this.set(a,b),this)},get:function(a){return this.tooltipsManager[a]},set:function(a,b){this.tooltipsManager[a]=b},has:function(a){return null!=this.tooltipsManager[a]},remove:function(a){return this.has(a)?(this.tooltipsManager[a].destroy(),delete this.tooltipsManager[a],this):this}}),_.extend(BI,{Events:{KEYDOWN:"_KEYDOWN",BACKSPACE:"_BACKSPACE",SPACE:"_SPACE",ENTER:"_ENTER",CONFIRM:"_CONFIRM",ERROR:"_ERROR",PAUSE:"_PAUSE",DESTROY:"_DESTROY",UNMOUNT:"_UNMOUNT",CLEAR:"_CLEAR",ADD:"_ADD",EDITING:"_EDITING",EMPTY:"_EMPTY",VIEW:"_VIEW",RESIZE:"_RESIZE",BEFOREEDIT:"_BEFOREEDIT",AFTEREDIT:"_AFTEREDIT",STARTEDIT:"_STARTEDIT",STOPEDIT:"_STOPEDIT",CHANGE:"_CHANGE",EXPAND:"_EXPAND",COLLAPSE:"_COLLAPSE",CALLBACK:"_CALLBACK",CLICK:"_CLICK",STATECHANGE:"_STATECHANGE",BEFORESTATECHANGE:"_BEFORESTATECHANGE",INIT:"_INIT",AFTERINIT:"_AFTERINIT",SCROLL:"_SCROLL",STARTLOAD:"_STARTLOAD",AFTERLOAD:"_AFTERLOAD",BS:"beforesubmit",AS:"aftersubmit",SC:"submitcomplete",SF:"submitfailure",SS:"submitsuccess",BVW:"beforeverifywrite",AVW:"afterverifywrite",AV:"afterverify",BW:"beforewrite",AW:"afterwrite",WS:"writesuccess",WF:"writefailure",BA:"beforeappend",AA:"afterappend",BD:"beforedelete",AD:"beforedelete",UC:"unloadcheck",BTOPDF:"beforetopdf",ATOPDF:"aftertopdf",BTOEXCEL:"beforetoexcel",ATOEXCEL:"aftertoexcel",BTOWORD:"beforetoword",ATOWORD:"aftertoword",BTOIMAGE:"beforetoimage",ATOIMAGE:"aftertoimage",BTOHTML:"beforetohtml",ATOHTML:"aftertohtml",BIMEXCEL:"beforeimportexcel",AIMEXCEL:"afterimportexcel",BPDFPRINT:"beforepdfprint",APDFPRINT:"afterpdfprint",BFLASHPRINT:"beforeflashprint",AFLASHPRINT:"afterflashprint",BAPPLETPRINT:"beforeappletprint",AAPPLETPRINT:"afterappletprint",BSEVERPRINT:"beforeserverprint",ASERVERPRINT:"afterserverprint",BEMAIL:"beforeemail",AEMAIL:"afteremail"}}),_.extend(BI,{pushArray:function(a,b){for(var c=0;ce&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+3*parseInt(b)),c},getQuarterStartMonth:function(a){var b=0,c=a.getMonth();return c<3&&(b=0),28&&(b=9),b},getQuarterStartDate:function(a){return BI.getDate(a.getFullYear(),BI.getQuarterStartMonth(a),1)},getQuarterEndDate:function(a){var b=BI.getQuarterStartMonth(a)+2;return BI.getDate(a.getFullYear(),b,BI.getMonthDays(a,b))},getOffsetMonth:function(a,b){var c=BI.getDate(BI.getTime(a.getFullYear(),a.getMonth(),a.getDate(),a.getHours(),a.getMinutes(),a.getSeconds())),d=c.getDate(),e=BI.getMonthDays(BI.getDate(c.getFullYear(),c.getMonth()+parseInt(b),1));return d>e&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+parseInt(b)),c},getWeekStartDate:function(a){var b=a.getDay(),c=BI.StartOfWeek%7;return BI.getOffsetDate(a,BI.Date._OFFSET[b=12,m=l?k-12:k,n=BI.getDayOfYear(a);0==m&&(m=12);var 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g={},h=[];BI.action=function(a,b){return BI.isFunction(a)?(h.push(a),function(){BI.remove(h,function(a){return h.indexOf(b)===a})}):(g[a]||(g[a]=[]),g[a].push(b),function(){BI.remove(g[a],function(c){return g[a].indexOf(b)===c}),0===g[a].length&&delete g[a]})};var i={};BI.point=function(a,b,c,d){i[a]||(i[a]={}),i[a][b]||(i[a][b]={}),i[a][b][d?"after":"before"]||(i[a][b][d?"after":"before"]=[]),i[a][b][d?"after":"before"].push(c)},BI.Modules={getModule:function(b){return a[b]?a[b]:(_global.console&&console.error("module:["+b+"] does not exists"),!1)}},BI.Constants={getConstant:function(a){return b[a]}};var j=function(a,b){if(i[b])for(var c in i[b]){var d=i[b][c].before;d&&BI.aspect.before(a,c,function(b){return function(){for(var c=0,d=b.length;c1?d.toString():d[0]:d,BI.isNull(d))throw new Error("value cannot be null");var f=b.cardNameCreator(d);if(!b.cardLayout.isCardExisted(f)){var g=b.cardCreator(f);b.cardLayout.addCardByName(f,g),b.afterCardCreated(f)}b.cardLayout.showCardByName(f),BI.nextTick(function(){b.afterCardShow(f),a.fireEvent(BI.ShowListener.EVENT_CHANGE,f)})}})}}),BI.ShowListener.EVENT_CHANGE="ShowListener.EVENT_CHANGE",BI.StyleLoaderManager=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.StyleLoaderManager.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.StyleLoaderManager.superclass._init.apply(this,arguments),this.stylesManager={}},loadStyle:function(a,b){if(_global.document){var c=document,d=c.createElement("style");return c.getElementsByTagName("head")[0].appendChild(d),d.setAttribute("type","text/css"),d.styleSheet?d.styleSheet.cssText=b:d.appendChild(document.createTextNode(b)),this.stylesManager[a]=d,this}},get:function(a){return this.stylesManager[a]},has:function(a){return null!=this.stylesManager[a]},removeStyle:function(a){return this.has(a)?(this.stylesManager[a].parentNode.removeChild(this.stylesManager[a]),delete this.stylesManager[a],this):this}}),BI.Logic=BI.inherit(BI.OB,{createLogic:function(){return this.options||{}}}),BI.LogicFactory={Type:{Vertical:"vertical",Horizontal:"horizontal",Table:"table",HorizontalFill:"horizontal_fill"},createLogic:function(a,b){var c;switch(a){case BI.LogicFactory.Type.Vertical:c=BI.VerticalLayoutLogic;break;case BI.LogicFactory.Type.Horizontal:c=BI.HorizontalLayoutLogic;break;case BI.LogicFactory.Type.Table:c=BI.TableLayoutLogic;break;case BI.LogicFactory.Type.HorizontalFill:c=BI.HorizontalFillLayoutLogic;break;default:c=BI.Logic}return new c(b).createLogic()},createLogicTypeByDirection:function(a){switch(a){case BI.Direction.Top:case BI.Direction.Bottom:case BI.Direction.Custom:return BI.LogicFactory.Type.Vertical;case BI.Direction.Left:case BI.Direction.Right:return BI.LogicFactory.Type.Horizontal}},createLogicItemsByDirection:function(a){var b,c=Array.prototype.slice.call(arguments,1);switch(c=BI.map(c,function(a,b){return BI.isWidget(b)?{el:b,width:b.options.width,height:b.options.height}:b}),a){case BI.Direction.Bottom:b=BI.LogicFactory.Type.Vertical,c.reverse();break;case BI.Direction.Right:b=BI.LogicFactory.Type.Horizontal,c.reverse();break;case BI.Direction.Custom:c=c.slice(1)}return c}},BI.VerticalLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.VerticalLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options;return 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BI.extend(BI.TableLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,columns:0,rows:0,columnSize:[],rowSize:[],hgap:0,vgap:0,items:[]})},createLogic:function(){var a,b=this.options;return a=b.dynamic?"bi.table":"bi.window",{type:a,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,columns:b.columns,rows:b.rows,columnSize:b.columnSize,rowSize:b.rowSize,hgap:b.hgap,vgap:b.vgap,items:b.items}},_init:function(){BI.TableLayoutLogic.superclass._init.apply(this,arguments)}}),BI.HorizontalFillLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.HorizontalFillLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options,c=[];return BI.each(b.items,function(a,b){c.push(b.width||0)}),a=b.dynamic?"bi.horizontal_adapt":"bi.htape",{type:a,columnSize:c,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,items:b.items}},_init:function(){BI.HorizontalFillLayoutLogic.superclass._init.apply(this,arguments)}}),_.extend(BI,{ajax:function(a){a||(a={});var b=a.async;a.data=BI.cjkEncodeDO(a.data||{}),$.ajax({url:a.url,type:"POST",data:a.data,async:b,error:a.error,complete:function(b,c){BI.isFunction(a.complete)&&a.complete(BI.jsonDecode(b.responseText),c)}})}}),BI.prepares.push(function(){var a,b=function(){return null==a&&(a=!(!BI.isSupportCss3||!BI.isSupportCss3("flex"))),a};BI.Plugin.registerWidget("bi.horizontal",function(a){var c=BI.isIE(),d=b(),e=c&&BI.getIEVersion()<8;return a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Left?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Top&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):c?a:d?BI.extend(a,{type:"bi.flex_horizontal"}):BI.extend(a,{type:"bi.table_adapt"})}),BI.Plugin.registerWidget("bi.center_adapt",function(a){var c=BI.isIE(),d=b(),e=a.items&&a.items.length<=1;return!c&&d&&e?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend(a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):e?BI.extend(a,{type:"bi.inline_center_adapt"}):a}),BI.Plugin.registerWidget("bi.vertical_adapt",function(a){var c=BI.isIE(),d=b();return!c&&d?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_vertical_center"}):BI.extend(a,{type:"bi.flex_vertical_center"}):BI.extend(a,{type:"bi.inline_vertical_adapt"})}),BI.Plugin.registerWidget("bi.horizontal_adapt",function(a){return a.items&&a.items.length<=1?BI.extend(a,{type:"bi.horizontal_auto"}):a}),BI.Plugin.registerWidget("bi.float_center_adapt",function(a){return!BI.isIE()&&b()?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):BI.extend(a,{type:"bi.inline_center_adapt"})})}),!function(){var a=_global.document&&_global.document.attachEvent,b=!1;if(_global.document&&!a){var c=function(){var a=_global.requestAnimationFrame||_global.mozRequestAnimationFrame||_global.webkitRequestAnimationFrame||function(a){return _global.setTimeout(a,20)};return function(b){return a(b)}}(),d=function(){var 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BI.DOM.rgb2hex(BI.DOM.json2rgb({r:this.R.getValue(),g:this.G.getValue(),b:this.B.getValue()}))}}),BI.SimpleColorPickerEditor.EVENT_CHANGE="SimpleColorPickerEditor.EVENT_CHANGE",BI.shortcut("bi.simple_color_picker_editor",BI.SimpleColorPickerEditor),BI.Farbtastic=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Farbtastic.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-farbtastic",width:195,height:195})},_init:function(){BI.Farbtastic.superclass._init.apply(this,arguments)},mounted:function(){var a=this;this.farbtastic=$.farbtastic(this.element,function(b){a.fireEvent(BI.Farbtastic.EVENT_CHANGE,a.getValue(),a)})},setValue:function(a){this.farbtastic.setColor(a)},getValue:function(){return this.farbtastic.color}}),BI.Farbtastic.EVENT_CHANGE="Farbtastic.EVENT_CHANGE",BI.shortcut("bi.farbtastic",BI.Farbtastic),jQuery.fn.farbtastic=function(a){return $.farbtastic(this,a),this},jQuery.farbtastic=function(a,b){var a=$(a).get(0);return a.farbtastic||(a.farbtastic=new jQuery._farbtastic(a,b))},jQuery._farbtastic=function(a,b){var c=this;$(a).html('
');var d=$(".farbtastic",a);c.wheel=$(".wheel",a).get(0),c.radius=84,c.square=100,c.width=194,navigator.appVersion.match(/MSIE [0-6]\./)&&$("*",d).each(function(){if("none"!=this.currentStyle.backgroundImage){var a=this.currentStyle.backgroundImage;a=this.currentStyle.backgroundImage.substring(5,a.length-2),$(this).css({backgroundImage:"none",filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='"+a+"')"})}}),c.linkTo=function(a){return"object"==typeof c.callback&&$(c.callback).unbind("keyup",c.updateValue),c.color=null,"function"==typeof a?c.callback=a:"object"!=typeof a&&"string"!=typeof a||(c.callback=$(a),c.callback.bind("keyup",c.updateValue),c.callback.get(0).value&&c.setColor(c.callback.get(0).value)),this},c.updateValue=function(a){this.value&&this.value!=c.color&&c.setColor(this.value)},c.setColor=function(a){var b=c.unpack(a);return c.color!=a&&b&&(c.color=a,c.rgb=b,c.hsl=c.RGBToHSL(c.rgb),c.updateDisplay()),this},c.setHSL=function(a){return c.hsl=a,c.rgb=c.HSLToRGB(a),c.color=c.pack(c.rgb),c.updateDisplay(),this},c.widgetCoords=function(a){var b,d,e=a.target||a.srcElement,f=c.wheel;if("undefined"!=typeof a.offsetX){for(var g={x:a.offsetX,y:a.offsetY},h=e;h;)h.mouseX=g.x,h.mouseY=g.y,g.x+=h.offsetLeft,g.y+=h.offsetTop,h=h.offsetParent;for(var h=f,i={x:0,y:0};h;){if("undefined"!=typeof h.mouseX){b=h.mouseX-i.x,d=h.mouseY-i.y;break}i.x+=h.offsetLeft,i.y+=h.offsetTop,h=h.offsetParent}for(h=e;h;)h.mouseX=void 0,h.mouseY=void 0,h=h.offsetParent}else{var g=c.absolutePosition(f);b=(a.pageX||0*(a.clientX+$("html").get(0).scrollLeft))-g.x,d=(a.pageY||0*(a.clientY+$("html").get(0).scrollTop))-g.y}return{x:b-c.width/2,y:d-c.width/2}},c.click=function(a){var b=c.widgetCoords(a);return c.circleDrag=2*Math.max(Math.abs(b.x),Math.abs(b.y))>c.square,c.mousemove(a),!1},c.mousemove=function(a){var b=c.widgetCoords(a);if(c.circleDrag){var d=Math.atan2(b.x,-b.y)/6.28;d<0&&(d+=1),c.setHSL([d,c.hsl[1],c.hsl[2]])}else{var e=Math.max(0,Math.min(1,-(b.x/c.square)+.5)),f=Math.max(0,Math.min(1,-(b.y/c.square)+.5));c.setHSL([c.hsl[0],e,f])}return!1},c.updateDisplay=function(){var a=6.28*c.hsl[0];$(".h-marker",d).css({left:Math.round(Math.sin(a)*c.radius+c.width/2)+"px",top:Math.round(-Math.cos(a)*c.radius+c.width/2)+"px"}),$(".sl-marker",d).css({left:Math.round(c.square*(.5-c.hsl[1])+c.width/2)+"px",top:Math.round(c.square*(.5-c.hsl[2])+c.width/2)+"px"}),$(".color",d).css("backgroundColor",c.pack(c.HSLToRGB([c.hsl[0],1,.5]))),"object"==typeof c.callback?($(c.callback).css({backgroundColor:c.color,color:c.hsl[2]>.5?"#000":"#fff"}),$(c.callback).each(function(){this.value&&this.value!=c.color&&(this.value=c.color)})):"function"==typeof c.callback&&c.callback.call(c,c.color)},c.absolutePosition=function(a){var b={x:a.offsetLeft,y:a.offsetTop};if(a.offsetParent){var d=c.absolutePosition(a.offsetParent);b.x+=d.x,b.y+=d.y}return b},c.pack=function(a){var b=Math.round(255*a[0]),c=Math.round(255*a[1]),d=Math.round(255*a[2]);return"#"+(b<16?"0":"")+b.toString(16)+(c<16?"0":"")+c.toString(16)+(d<16?"0":"")+d.toString(16)},c.unpack=function(a){return 7==a.length?[parseInt("0x"+a.substring(1,3))/255,parseInt("0x"+a.substring(3,5))/255,parseInt("0x"+a.substring(5,7))/255]:4==a.length?[parseInt("0x"+a.substring(1,2))/15,parseInt("0x"+a.substring(2,3))/15,parseInt("0x"+a.substring(3,4))/15]:void 0},c.HSLToRGB=function(a){var b,c,d=a[0],e=a[1],f=a[2];return c=f<=.5?f*(e+1):f+e-f*e,b=2*f-c,[this.hueToRGB(b,c,d+.33333),this.hueToRGB(b,c,d),this.hueToRGB(b,c,d-.33333)]},c.hueToRGB=function(a,b,c){return c=c<0?c+1:c>1?c-1:c,6*c<1?a+(b-a)*c*6:2*c<1?b:3*c<2?a+(b-a)*(.66666-c)*6:a},c.RGBToHSL=function(a){var b,c,d,e,f,g,h=a[0],i=a[1],j=a[2];return b=Math.min(h,Math.min(i,j)),c=Math.max(h,Math.max(i,j)),d=c-b,g=(b+c)/2,f=0,g>0&&g<1&&(f=d/(g<.5?2*g:2-2*g)),e=0,d>0&&(c==h&&c!=i&&(e+=(i-j)/d),c==i&&c!=j&&(e+=2+(j-h)/d),c==j&&c!=h&&(e+=4+(h-i)/d),e/=6),[e,f,g]},$("*",d).click(c.click),c.setColor("#000000"),b&&c.linkTo(b)},BI.BubbleCombo=BI.inherit(BI.Widget,{_const:{TRIANGLE_LENGTH:6},_defaultConfig:function(){return BI.extend(BI.BubbleCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-bubble-combo",trigger:"click",toggle:!0,direction:"bottom",isDefaultInit:!1,destroyWhenHide:!1,isNeedAdjustHeight:!0,isNeedAdjustWidth:!0,stopPropagation:!1,adjustLength:0,hideChecker:BI.emptyFn,offsetStyle:"left",el:{},popup:{}})},_init:function(){BI.BubbleCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.combo=BI.createWidget({type:"bi.combo",element:this,trigger:b.trigger,toggle:b.toggle,container:b.container,direction:b.direction,isDefaultInit:b.isDefaultInit,destroyWhenHide:b.destroyWhenHide,isNeedAdjustHeight:b.isNeedAdjustHeight,isNeedAdjustWidth:b.isNeedAdjustWidth,adjustLength:this._getAdjustLength(),stopPropagation:b.stopPropagation,adjustXOffset:0,adjustYOffset:0,hideChecker:b.hideChecker,offsetStyle:b.offsetStyle,el:b.el,popup:BI.extend({type:"bi.bubble_popup_view"},b.popup)}),this.combo.on(BI.Combo.EVENT_TRIGGER_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_TRIGGER_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_EXPAND,function(){a.fireEvent(BI.BubbleCombo.EVENT_EXPAND,arguments)}),this.combo.on(BI.Combo.EVENT_COLLAPSE,function(){a.fireEvent(BI.BubbleCombo.EVENT_COLLAPSE,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_INIT,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_INIT,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_POPUPVIEW,function(){a._showTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_AFTER_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW,function(){a._hideTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_HIDEVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_HIDEVIEW,arguments)})},_getAdjustLength:function(){return this._const.TRIANGLE_LENGTH+this.options.adjustLength},_createTriangle:function(a){var b={},c={},d=this.options.adjustLength,e=this.element.offset(),f=e.left,g=e.left+this.element.outerWidth(),h=e.top,i=e.top+this.element.outerHeight();switch(a){case"left":b={top:h,height:this.element.outerHeight(),left:f-d-this._const.TRIANGLE_LENGTH},c={width:this._const.TRIANGLE_LENGTH};break;case"right":b={top:h,height:this.element.outerHeight(),left:g+d},c={width:this._const.TRIANGLE_LENGTH};break;case"top":b={left:f,width:this.element.outerWidth(),top:h-d-this._const.TRIANGLE_LENGTH},c={height:this._const.TRIANGLE_LENGTH};break;case"bottom":b={left:f,width:this.element.outerWidth(),top:i+d},c={height:this._const.TRIANGLE_LENGTH}}this.triangle&&this.triangle.destroy(),this.triangle=BI.createWidget(c,{type:"bi.center_adapt",cls:"button-combo-triangle-wrapper",items:[{type:"bi.layout",cls:"bubble-combo-triangle-"+a+" bi-high-light-border"}]}),b.el=this.triangle,BI.createWidget({type:"bi.absolute",element:this,items:[b]})},_createLeftTriangle:function(){this._createTriangle("left")},_createRightTriangle:function(){this._createTriangle("right")},_createTopTriangle:function(){this._createTriangle("top")},_createBottomTriangle:function(){this._createTriangle("bottom")},_showTriangle:function(){var a=this.combo.getPopupPosition();switch(a.dir){case"left,top":case"left,bottom":this._createLeftTriangle();break;case"right,top":case"right,bottom":this._createRightTriangle();break;case"top,left":case"top,right":this._createTopTriangle();break;case"bottom,left":case"bottom,right":this._createBottomTriangle()}},_hideTriangle:function(){this.triangle&&this.triangle.destroy(),this.triangle=null},hideView:function(){this._hideTriangle(),this.combo&&this.combo.hideView()},showView:function(){this.combo&&this.combo.showView()},isViewVisible:function(){return this.combo.isViewVisible()}}),BI.BubbleCombo.EVENT_TRIGGER_CHANGE="EVENT_TRIGGER_CHANGE",BI.BubbleCombo.EVENT_CHANGE="EVENT_CHANGE",BI.BubbleCombo.EVENT_EXPAND="EVENT_EXPAND",BI.BubbleCombo.EVENT_COLLAPSE="EVENT_COLLAPSE",BI.BubbleCombo.EVENT_AFTER_INIT="EVENT_AFTER_INIT",BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.BubbleCombo.EVENT_AFTER_POPUPVIEW="EVENT_AFTER_POPUPVIEW",BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW="EVENT_BEFORE_HIDEVIEW",BI.BubbleCombo.EVENT_AFTER_HIDEVIEW="EVENT_AFTER_HIDEVIEW",BI.shortcut("bi.bubble_combo",BI.BubbleCombo),BI.BubblePopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.BubblePopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:a.baseCls+" bi-bubble-popup-view",minWidth:220,maxWidth:300,minHeight:90})},_init:function(){BI.BubblePopupView.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.bubble_popup_view",BI.BubblePopupView),BI.BubblePopupBarView=BI.inherit(BI.BubblePopupView,{_defaultConfig:function(){return BI.extend(BI.BubblePopupBarView.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-bubble-bar-popup-view",buttons:[{value:BI.i18nText("BI-Basic_Cancel"),ghost:!0},{value:BI.i18nText(BI.i18nText("BI-Basic_Sure"))}]})},_init:function(){BI.BubblePopupBarView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this,c=[];return BI.each(a.buttons,function(a,d){BI.isWidget(d)?c.push(d):c.push(BI.extend({type:"bi.button",height:24,handler:function(a){b.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,a)}},d))}),BI.createWidget({type:"bi.center",height:44,rgap:15,items:[{type:"bi.right_vertical_adapt",lgap:10,items:c}]})},_createView:function(){var a=this.options,b=BI.createWidget({type:"bi.button_group",items:[a.el],layouts:[{type:"bi.vertical",hgap:15,tgap:10}]});return b.element.css("min-height",a.minHeight-44),b}}),BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.bubble_bar_popup_view",BI.BubblePopupBarView),BI.TextBubblePopupBarView=BI.inherit(BI.Widget,{props:function(){return{baseCls:"bi-text-bubble-bar-popup-view",text:"",buttons:[{level:"ignore",value:!1,text:BI.i18nText("BI-Basic_Cancel")},{value:!0,text:BI.i18nText("BI-Basic_Sure")}]}},render:function(){var a=this,b=this.options,c=BI.map(b.buttons,function(b,c){return BI.isWidget(c)?c:BI.extend({type:"bi.button",height:24,handler:function(b){a.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,b)}},c)});return{type:"bi.bubble_bar_popup_view",ref:function(){a.popup=this},el:{type:"bi.label",text:b.text,whiteSpace:"normal",textAlign:"left",ref:function(){a.text=this}},buttons:c}},populate:function(a){this.text.setText(a||this.options.text)}}),BI.TextBubblePopupBarView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_bubble_bar_popup_view",BI.TextBubblePopupBarView),BI.EditorIconCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.EditorIconCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseClass:"bi-check-editor-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:""})},_init:function(){BI.EditorIconCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.editor_trigger",items:b.items,height:b.height,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText,value:b.value}),this.trigger.on(BI.EditorTrigger.EVENT_CHANGE,function(){a.popup.setValue(this.getValue()),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.editorIconCheckCombo.hideView(),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editorIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.editorIconCheckCombo.setValue(a)},getValue:function(){return this.trigger.getValue()},populate:function(a){this.options.items=a,this.editorIconCheckCombo.populate(a)}}),BI.EditorIconCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.editor_icon_check_combo",BI.EditorIconCheckCombo),BI.IconCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-combo",width:24,height:24,el:{},popup:{},minWidth:100,maxWidth:"auto",maxHeight:300,direction:"bottom",adjustLength:3,adjustXOffset:0,adjustYOffset:0,offsetStyle:"left",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.icon_combo_trigger",iconCls:b.iconCls,title:b.title,items:b.items,width:b.width,height:b.height,iconWidth:b.iconWidth,iconHeight:b.iconHeight,value:b.value}),this.popup=BI.createWidget(b.popup,{type:"bi.icon_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.IconComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.iconCombo.hideView(),a.fireEvent(BI.IconCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.iconCombo=BI.createWidget({type:"bi.combo",element:this,direction:b.direction,trigger:b.trigger,container:b.container,adjustLength:b.adjustLength,adjustXOffset:b.adjustXOffset,adjustYOffset:b.adjustYOffset,offsetStyle:b.offsetStyle,el:this.trigger,popup:{el:this.popup,maxWidth:b.maxWidth,maxHeight:b.maxHeight,minWidth:b.minWidth}})},showView:function(){this.iconCombo.showView()},hideView:function(){this.iconCombo.hideView()},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.iconCombo.populate(a)}}),BI.IconCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo",BI.IconCombo),BI.IconComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi.icon-combo-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_popup",BI.IconComboPopup),BI.IconComboTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconComboTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-combo-trigger",el:{},items:[],iconCls:"",width:24,height:24,isShowDown:!0,value:""})},_init:function(){BI.IconComboTrigger.superclass._init.apply(this,arguments);var a=this.options,b="";BI.isKey(a.value)&&(b=this._digest(a.value,a.items)),this.button=BI.createWidget(a.el,{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b,disableSelected:!0,width:a.isShowDown?a.width-12:a.width,height:a.height,iconWidth:a.iconWidth,iconHeight:a.iconHeight,selected:BI.isNotEmptyString(b)}),this.down=BI.createWidget({type:"bi.icon_button",disableSelected:!0,cls:"icon-combo-down-icon trigger-triangle-font font-size-12",width:12,height:8,selected:BI.isNotEmptyString(b)}),this.down.setVisible(a.isShowDown),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.button,left:0,right:0,top:0,bottom:0},{el:this.down,right:3,bottom:0}]})},_digest:function(a,b){var c="";return a=BI.isArray(a)?a[0]:a,BI.any(b,function(b,d){if(a===d.value)return c=d.iconCls,!0}),c},populate:function(a){var b=this.options;this.options.items=a||[],this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1)},setValue:function(a){BI.IconComboTrigger.superclass.setValue.apply(this,arguments);var b=this.options,c=this._digest(a,this.options.items);a=BI.isArray(a)?a[0]:a,BI.isNotEmptyString(c)?(this.button.setIcon(c),this.button.setSelected(!0),this.down.setSelected(!0)):(this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1))}}),BI.IconComboTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_trigger",BI.IconComboTrigger),BI.IconTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconTextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-value-combo",height:24,iconHeight:null,iconWidth:null,value:"",attributes:{tabIndex:0}})},_init:function(){BI.IconTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_icon_text_trigger",cls:"icon-text-value-trigger",items:b.items,height:b.height,text:b.text,iconCls:b.iconCls,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth,title:b.title,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.icon_text_value_combo_popup",items:b.items,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth}),this.popup.on(BI.IconTextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.IconTextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this.setValue(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.options.tipType="warning",this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.options.tipType="success",this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){ var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.IconTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo",BI.IconTextValueCombo),BI.IconTextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconTextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-icon-popup"})},_init:function(){BI.IconTextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconTextValueComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconTextValueComboPopup.superclass.populate.apply(this,arguments);var b=this.options;a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24,iconWrapperWidth:b.iconWrapperWidth,iconHeight:b.iconHeight,iconWidth:b.iconWidth}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo_popup",BI.IconTextValueComboPopup),BI.SearchTextValueCombo=BI.inherit(BI.Widget,{props:{baseCls:"bi-search-text-value-combo",height:24,text:"",items:[],tipType:"",warningTitle:"",attributes:{tabIndex:0}},render:function(){var a=this,b=this.options;return{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,adjustLength:2,toggle:!1,ref:function(){a.combo=this},el:{type:"bi.search_text_value_trigger",cls:"search-text-value-trigger",ref:function(){a.trigger=this},items:b.items,height:b.height-2,text:b.text,value:b.value,tipType:b.tipType,warningTitle:b.warningTitle,title:b.title,listeners:[{eventName:BI.SearchTextValueTrigger.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},popup:{el:{type:"bi.text_value_combo_popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:b.value,items:b.items,ref:function(){a.popup=this,a.trigger.getSearcher().setAdapter(a.popup)},listeners:[{eventName:BI.TextValueComboPopup.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},maxHeight:252},listeners:[{eventName:BI.Combo.EVENT_AFTER_HIDEVIEW,action:function(){a.trigger.stopEditing()}},{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.fireEvent(BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},left:0,right:0,bottom:0,top:0},{el:{type:"bi.trigger_icon_button",cls:"trigger-icon-button",ref:function(){a.triggerBtn=this},width:b.height,height:b.height,handler:function(){a.combo.isViewVisible()?a.combo.hideView():a.combo.showView()}},right:0,bottom:0,top:0}]}},mounted:function(){var a=this.options;BI.isKey(a.value)&&this._checkError(a.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.element.removeClass("combo-error").addClass("combo-error"),this.trigger.attr("tipType","warning")):(this.element.removeClass("combo-error"),this.trigger.attr("tipType","success"))}},populate:function(a){this.options.items=a,this.combo.populate(a)},setValue:function(a){this.combo.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]}}),BI.SearchTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.search_text_value_combo",BI.SearchTextValueCombo),BI.SearchTextValueComboPopup=BI.inherit(BI.Pane,{props:{baseCls:"bi-search-text-value-popup"},render:function(){var a=this,b=this.options;return{type:"bi.vertical",vgap:5,items:[{type:"bi.button_group",ref:function(){a.popup=this},items:BI.createItems(b.items,{type:"bi.single_select_item",textAlign:b.textAlign,height:24}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],behaviors:{redmark:function(){return!0}},value:b.value,listeners:[{eventName:BI.Controller.EVENT_CHANGE,action:function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.SearchTextValueComboPopup.EVENT_CHANGE,c,d)}}]}]}},populate:function(a,b,c){var d=BI.concat(a,b);BI.SearchTextValueComboPopup.superclass.populate.apply(this,d),d=BI.createItems(d,{type:"bi.single_select_item",height:24}),this.popup.populate(d,c)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.SearchTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_combo_popup",BI.SearchTextValueComboPopup),BI.SearchTextValueTrigger=BI.inherit(BI.Trigger,{props:{extraCls:"bi-search-text-value-trigger bi-border",height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.searcher",ref:function(){a.searcher=this},isAutoSearch:!1,el:{type:"bi.state_editor",ref:function(){a.editor=this},text:this._digest(b.value,b.items),value:b.value,height:b.height,tipText:""},popup:{type:"bi.search_text_value_combo_popup",cls:"bi-card",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE},onSearch:function(a,c){var d=a.keyword,e=BI.Func.getSearchResult(b.items,d),f=e.match,g=e.find;c(g,f)},listeners:[{eventName:BI.Searcher.EVENT_CHANGE,action:function(){a.fireEvent(BI.SearchTextValueTrigger.EVENT_CHANGE)}}]}},{el:{type:"bi.layout",width:24},width:24}]}},_setState:function(a){this.editor.setState(a)},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},stopEditing:function(){this.searcher.stopSearch()},getSearcher:function(){return this.searcher},populate:function(a){this.options.items=a},setValue:function(a){this._setState(this._digest(a,this.options.items))},getValue:function(){return this.searcher.getValue()}}),BI.SearchTextValueTrigger.EVENT_SEARCHING="EVENT_SEARCHING",BI.SearchTextValueTrigger.EVENT_STOP="EVENT_STOP",BI.SearchTextValueTrigger.EVENT_START="EVENT_START",BI.SearchTextValueTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_trigger",BI.SearchTextValueTrigger),BI.TextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-check-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCheckCombo.hideView(),a.fireEvent(BI.TextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}}),BI.isKey(b.value)&&this.setValue(b.value)},setTitle:function(a){this.trigger.setTitle(a)},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},setWarningTitle:function(a){this.trigger.setWarningTitle(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCheckCombo.populate(a)}}),BI.TextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo",BI.TextValueCheckCombo),BI.SmallTextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:""})},_init:function(){BI.SmallTextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextIconCheckCombo.hideView(),a.fireEvent(BI.SmallTextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.SmallTextIconCheckCombo.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextIconCheckCombo.populate(a)}}),BI.SmallTextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_check_combo",BI.SmallTextValueCheckCombo),BI.TextValueCheckComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueCheckComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:this._formatItems(a.items),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueCheckComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},_formatItems:function(a){return BI.map(a,function(a,b){return BI.extend({type:"bi.icon_text_item",cls:"item-check-font bi-list-item",height:24},b)})},populate:function(a){BI.TextValueCheckComboPopup.superclass.populate.apply(this,arguments),this.popup.populate(this._formatItems(a))},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueCheckComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo_popup",BI.TextValueCheckComboPopup),BI.TextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-combo",height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:"",value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,value:b.value,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.TextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this._checkError(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.setTipType("warning"),this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.setTipType("success"),this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.TextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo",BI.TextValueCombo),BI.SmallTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,el:{},text:""})},_init:function(){BI.SmallTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextValueCombo.hideView(),a.fireEvent(BI.SmallTextValueCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextValueCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextValueCombo.populate(a)}}),BI.SmallTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_combo",BI.SmallTextValueCombo),BI.TextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_item",textAlign:a.textAlign,height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueComboPopup.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.TextValueComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo_popup",BI.TextValueComboPopup),BI.TextValueDownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueDownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-down-list-combo",height:24,attributes:{tabIndex:0}})},_init:function(){BI.TextValueDownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this._createValueMap();var c;BI.isNotNull(b.value)&&(c=this._digest(b.value)),this.trigger=BI.createWidget({type:"bi.down_list_select_text_trigger",cls:"text-value-down-list-trigger",height:b.height,items:b.items,text:b.text,value:c}),this.combo=BI.createWidget({type:"bi.down_list_combo",element:this,chooseType:BI.Selection.Single,adjustLength:2,height:b.height,el:this.trigger,value:BI.isNull(c)?[]:[c],items:BI.deepClone(b.items)}),this.combo.on(BI.DownListCombo.EVENT_CHANGE,function(){var b=a.combo.getValue()[0].value;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))}),this.combo.on(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,function(){var b=a.combo.getValue()[0].childValue;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))})},_createValueMap:function(){var a=this;this.valueMap={},BI.each(BI.flatten(this.options.items),function(b,c){BI.has(c,"el")?BI.each(c.children,function(b,d){a.valueMap[d.value]={value:c.el.value,childValue:d.value}}):a.valueMap[c.value]={value:c.value}})},_digest:function(a){return this.value=a,this.valueMap[a]},setValue:function(a){a=this._digest(a),this.combo.setValue([a]),this.trigger.setValue(a)},getValue:function(){var a=this.combo.getValue()[0];return[a.childValue||a.value]},populate:function(a){this.options.items=BI.flatten(a),this.combo.populate(a),this._createValueMap()}}),BI.TextValueDownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_down_list_combo",BI.TextValueDownListCombo),BI.DownListSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.DownListSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-select-text-trigger",height:24,text:""})},_init:function(){BI.DownListSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",element:this,height:a.height,items:this._formatItemArray(a.items),text:a.text,value:BI.isNull(a.value)?"":a.value.childValue||a.value.value})},_formatItemArray:function(){var a=BI.flatten(BI.deepClone(this.options.items)),b=[];return BI.each(a,function(a,c){BI.has(c,"el")?(BI.each(c.children,function(a,b){b.text=c.el.text+"("+b.text+")"}),b=BI.concat(b,c.children)):b.push(c)}),b},setValue:function(a){this.trigger.setValue(a.childValue||a.value)},populate:function(a){this.trigger.populate(this._formatItemArray(a))}}),BI.shortcut("bi.down_list_select_text_trigger",BI.DownListSelectTextTrigger),BI.ClearEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ClearEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-clear-editor",height:24,errorText:"",watermark:"",validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){BI.ClearEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker,value:b.value}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"search-close-h-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.ClearEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ClearEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ClearEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ClearEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ClearEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ClearEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.ClearEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ClearEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ClearEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.ClearEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.ClearEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ClearEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ClearEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ClearEditor.EVENT_STOP)}),BI.isKey(b.value)?this.clear.visible():this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isValid:function(){return this.editor.isValid()}}),BI.ClearEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ClearEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ClearEditor.EVENT_BLUR="EVENT_BLUR",BI.ClearEditor.EVENT_CLICK="EVENT_CLICK",BI.ClearEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ClearEditor.EVENT_SPACE="EVENT_SPACE",BI.ClearEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.ClearEditor.EVENT_CLEAR="EVENT_CLEAR",BI.ClearEditor.EVENT_START="EVENT_START",BI.ClearEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ClearEditor.EVENT_STOP="EVENT_STOP",BI.ClearEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ClearEditor.EVENT_VALID="EVENT_VALID",BI.ClearEditor.EVENT_ERROR="EVENT_ERROR",BI.ClearEditor.EVENT_ENTER="EVENT_ENTER",BI.ClearEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ClearEditor.EVENT_REMOVE="EVENT_REMOVE",BI.ClearEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.clear_editor",BI.ClearEditor),BI.ShelterEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ShelterEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-shelter-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,textAlign:"left"})},_init:function(){BI.ShelterEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"shelter-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:b.textAlign,height:b.height,hgap:b.hgap}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.text.on(BI.Controller.EVENT_CHANGE,function(){arguments[2]=a,a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK_LABEL)}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ShelterEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ShelterEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ShelterEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ShelterEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ShelterEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ShelterEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ShelterEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ShelterEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ShelterEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ShelterEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.ShelterEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText(),this.text.doRedMark(b.keyword)},_checkText:function(){var a=this.options;""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setTextStyle:function(a){this.text.setStyle(a)},setValue:function(a){this.editor.setValue(a),this._checkText(),this.text.doRedMark(this.options.keyword)},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.ShelterEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ShelterEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ShelterEditor.EVENT_BLUR="EVENT_BLUR",BI.ShelterEditor.EVENT_CLICK="EVENT_CLICK",BI.ShelterEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ShelterEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.ShelterEditor.EVENT_START="EVENT_START",BI.ShelterEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ShelterEditor.EVENT_STOP="EVENT_STOP",BI.ShelterEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ShelterEditor.EVENT_VALID="EVENT_VALID",BI.ShelterEditor.EVENT_ERROR="EVENT_ERROR",BI.ShelterEditor.EVENT_ENTER="EVENT_ENTER",BI.ShelterEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ShelterEditor.EVENT_SPACE="EVENT_SPACE",BI.ShelterEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.shelter_editor",BI.ShelterEditor),BI.SignEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SignEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-sign-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SignEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"sign-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:"left",height:b.height,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.selectAll()}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SignEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SignEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SignEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SignEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SignEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SignEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SignEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.SignEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SignEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SignEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SignEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SignEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.SignEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SignEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SignEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SignEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText()},_checkText:function(){var a=this.options;BI.nextTick(BI.bind(function(){""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},this))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){ return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),this._checkText()},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.SignEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SignEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SignEditor.EVENT_BLUR="EVENT_BLUR",BI.SignEditor.EVENT_CLICK="EVENT_CLICK",BI.SignEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SignEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SignEditor.EVENT_START="EVENT_START",BI.SignEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SignEditor.EVENT_STOP="EVENT_STOP",BI.SignEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SignEditor.EVENT_VALID="EVENT_VALID",BI.SignEditor.EVENT_ERROR="EVENT_ERROR",BI.SignEditor.EVENT_ENTER="EVENT_ENTER",BI.SignEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SignEditor.EVENT_SPACE="EVENT_SPACE",BI.SignEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.sign_editor",BI.SignEditor),BI.StateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,text:BI.i18nText("BI-Basic_Unrestricted")})},_init:function(){BI.StateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text tip-text-style",textAlign:"left",height:b.height,text:b.text,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")},title:BI.isNotNull(b.tipText)?b.tipText:function(){var b="";return BI.isString(a.stateValue)&&(b=a.stateValue),BI.isArray(a.stateValue)&&1===a.stateValue.length&&(b=a.stateValue[0]),b},warningTitle:b.warningTitle,tipType:b.tipType}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.StateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.StateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.StateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.StateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.StateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.StateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.StateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.StateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.StateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.StateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.StateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.StateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.StateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.StateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.StateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.StateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this.options.disabled===!1&&(this._showInput(),this.editor.focus())},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){var b=this.options;return BI.StateEditor.superclass.setValue.apply(this,arguments),this.stateValue=a,BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Select_All")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text"))):BI.isString(a)?(this.text.setText(a),void this.text.element.removeClass("state-editor-infinite-text")):void(BI.isArray(a)&&(BI.isEmpty(a)?(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text")):1===a.length?(this.text.setText(a[0]),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text"))))},setTipType:function(a){this.text.options.tipType=a}}),BI.StateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.StateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.StateEditor.EVENT_BLUR="EVENT_BLUR",BI.StateEditor.EVENT_CLICK="EVENT_CLICK",BI.StateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.StateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.StateEditor.EVENT_START="EVENT_START",BI.StateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.StateEditor.EVENT_STOP="EVENT_STOP",BI.StateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.StateEditor.EVENT_VALID="EVENT_VALID",BI.StateEditor.EVENT_ERROR="EVENT_ERROR",BI.StateEditor.EVENT_ENTER="EVENT_ENTER",BI.StateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.StateEditor.EVENT_SPACE="EVENT_SPACE",BI.StateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.state_editor",BI.StateEditor),BI.SimpleStateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SimpleStateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-simple-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,mouseOut:!1,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SimpleStateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text",textAlign:"left",height:b.height,text:BI.i18nText("BI-Basic_Unrestricted"),hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SimpleStateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.SimpleStateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){return BI.SimpleStateEditor.superclass.setValue.apply(this,arguments),BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text"))):void(BI.isArray(a)&&1!==a.length?BI.isEmpty(a)?(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(a),this.text.setTitle(a),this.text.element.removeClass("state-editor-infinite-text")))}}),BI.SimpleStateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SimpleStateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SimpleStateEditor.EVENT_BLUR="EVENT_BLUR",BI.SimpleStateEditor.EVENT_CLICK="EVENT_CLICK",BI.SimpleStateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SimpleStateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SimpleStateEditor.EVENT_START="EVENT_START",BI.SimpleStateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SimpleStateEditor.EVENT_STOP="EVENT_STOP",BI.SimpleStateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SimpleStateEditor.EVENT_VALID="EVENT_VALID",BI.SimpleStateEditor.EVENT_ERROR="EVENT_ERROR",BI.SimpleStateEditor.EVENT_ENTER="EVENT_ENTER",BI.SimpleStateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SimpleStateEditor.EVENT_SPACE="EVENT_SPACE",BI.SimpleStateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.simple_state_editor",BI.SimpleStateEditor),BI.MultiPopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.MultiPopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{_baseCls:(a._baseCls||"")+" bi-multi-list-view",buttons:[BI.i18nText("BI-Basic_Sure")]})},_init:function(){BI.MultiPopupView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this;if(0!==a.buttons.length){var c=[];return BI.each(a.buttons,function(a,b){c.push({text:b,value:a})}),this.buttongroup=BI.createWidget({type:"bi.button_group",cls:"list-view-toolbar bi-high-light bi-split-top",height:24,items:BI.createItems(c,{type:"bi.text_button",once:!1,shadow:!0,isShadowShowingOnSelected:!0}),layouts:[{type:"bi.center",hgap:0,vgap:0}]}),this.buttongroup.on(BI.ButtonGroup.EVENT_CHANGE,function(a,c){b.fireEvent(BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON,a,c)}),this.buttongroup}}}),BI.MultiPopupView.EVENT_CHANGE="EVENT_CHANGE",BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.multi_popup_view",BI.MultiPopupView),BI.PopupPanel=BI.inherit(BI.MultiPopupView,{_defaultConfig:function(){var a=BI.PopupPanel.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-popup-panel",title:""})},_init:function(){BI.PopupPanel.superclass._init.apply(this,arguments)},_createTool:function(){var a=this,b=this.options,c=BI.createWidget({type:"bi.icon_button",cls:"close-h-font",width:25,height:25});return c.on(BI.IconButton.EVENT_CHANGE,function(){a.setVisible(!1),a.fireEvent(BI.PopupPanel.EVENT_CLOSE)}),BI.createWidget({type:"bi.htape",cls:"popup-panel-title bi-header-background",height:25,items:[{el:{type:"bi.label",textAlign:"left",text:b.title,height:25,lgap:10}},{el:c,width:25}]})}}),BI.PopupPanel.EVENT_CHANGE="EVENT_CHANGE",BI.PopupPanel.EVENT_CLOSE="EVENT_CLOSE",BI.PopupPanel.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.popup_panel",BI.PopupPanel),BI.ListPane=BI.inherit(BI.Pane,{_defaultConfig:function(){var a=BI.ListPane.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-list-pane",logic:{dynamic:!0},lgap:0,rgap:0,tgap:0,bgap:0,vgap:0,hgap:0,items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,el:{type:"bi.button_group"}})},_init:function(){BI.ListPane.superclass._init.apply(this,arguments);var a=this,b=this.options;this.button_group=BI.createWidget(b.el,{type:"bi.button_group",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,behaviors:{},items:b.items,itemsCreator:function(c,d){1===c.times&&(a.empty(),BI.nextTick(function(){a.loading()})),b.itemsCreator(c,function(){d.apply(a,arguments),1===c.times&&BI.nextTick(function(){a.loaded()})})},hasNext:b.hasNext,layouts:[{type:"bi.vertical"}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.ListPane.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Top),BI.extend({scrolly:!0,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,vgap:b.vgap,hgap:b.hgap},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Top,this.button_group)}))))},hasPrev:function(){return this.button_group.hasPrev&&this.button_group.hasPrev()},hasNext:function(){return this.button_group.hasNext&&this.button_group.hasNext()},prependItems:function(a){this.options.items=a.concat(this.options.items),this.button_group.prependItems.apply(this.button_group,arguments),this.check()},addItems:function(a){this.options.items=this.options.items.concat(a),this.button_group.addItems.apply(this.button_group,arguments),this.check()},removeItemAt:function(a){a=a||[],BI.removeAt(this.options.items,a),this.button_group.removeItemAt.apply(this.button_group,arguments),this.check()},populate:function(a){var b=this;this.options;return 0===arguments.length&&BI.isFunction(this.button_group.attr("itemsCreator"))?void this.button_group.attr("itemsCreator").apply(this,[{times:1},function(){if(0===arguments.length)throw new Error("参数不能为空");b.populate.apply(b,arguments)}]):(BI.ListPane.superclass.populate.apply(this,arguments),void this.button_group.populate.apply(this.button_group,arguments))},empty:function(){this.button_group.empty()},setNotSelectedValue:function(){this.button_group.setNotSelectedValue.apply(this.button_group,arguments)},getNotSelectedValue:function(){return this.button_group.getNotSelectedValue()},setValue:function(){this.button_group.setValue.apply(this.button_group,arguments)},getValue:function(){return this.button_group.getValue.apply(this.button_group,arguments)},getAllButtons:function(){return this.button_group.getAllButtons()},getAllLeaves:function(){return this.button_group.getAllLeaves()},getSelectedButtons:function(){return this.button_group.getSelectedButtons()},getNotSelectedButtons:function(){return this.button_group.getNotSelectedButtons()},getIndexByValue:function(a){return this.button_group.getIndexByValue(a)},getNodeById:function(a){return this.button_group.getNodeById(a)},getNodeByValue:function(a){return this.button_group.getNodeByValue(a)}}),BI.ListPane.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.list_pane",BI.ListPane),BI.Panel=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Panel.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-panel bi-border",title:"",titleButtons:[],el:{},logic:{dynamic:!1}})},_init:function(){BI.Panel.superclass._init.apply(this,arguments);var a=this.options;BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("vertical",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("top",this._createTitle(),this.options.el)}))))},_createTitle:function(){var a=this,b=this.options;return this.text=BI.createWidget({type:"bi.label",cls:"panel-title-text",text:b.title,height:30}),this.button_group=BI.createWidget({type:"bi.button_group",items:b.titleButtons,layouts:[{type:"bi.center_adapt",lgap:10}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.button_group.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Panel.EVENT_CHANGE,b,c)}),{el:{type:"bi.left_right_vertical_adapt",cls:"panel-title bi-header-background bi-border-bottom",height:29,items:{left:[this.text],right:[this.button_group]},lhgap:10,rhgap:10},height:29}},setTitle:function(a){this.text.setValue(a)}}),BI.Panel.EVENT_CHANGE="Panel.EVENT_CHANGE",BI.shortcut("bi.panel",BI.Panel),BI.LinearSegmentButton=BI.inherit(BI.BasicButton,{props:{extraCls:"bi-line-segment-button bi-list-item-effect",once:!0,readonly:!0,hgap:10,height:25},render:function(){var a=this,b=this.options;return[{type:"bi.label",text:b.text,height:b.height,value:b.value,hgap:b.hgap,ref:function(){a.text=this}},{type:"bi.absolute",items:[{el:{type:"bi.layout",cls:"line-segment-button-line",height:2,ref:function(){a.line=this}},left:0,right:0,bottom:0}]}]},setSelected:function(a){BI.LinearSegmentButton.superclass.setSelected.apply(this,arguments),a?this.line.element.addClass("bi-high-light-background"):this.line.element.removeClass("bi-high-light-background")},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.linear_segment_button",BI.LinearSegmentButton),BI.LinearSegment=BI.inherit(BI.Widget,{props:{baseCls:"bi-linear-segment bi-split-bottom",items:[],height:29},render:function(){var a=this,b=this.options;return{type:"bi.button_group",items:BI.createItems(b.items,{type:"bi.linear_segment_button",height:b.height-1}),layout:[{type:"bi.center"}],listeners:[{eventName:"__EVENT_CHANGE__",action:function(){a.fireEvent("__EVENT_CHANGE__",arguments)}},{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.buttonGroup=this}}},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.shortcut("bi.linear_segment",BI.LinearSegment),BI.SelectList=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SelectList.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-list",direction:BI.Direction.Top,logic:{dynamic:!0},items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,toolbar:{type:"bi.multi_select_bar",iconWrapperWidth:36},el:{type:"bi.list_pane"}})},_init:function(){BI.SelectList.superclass._init.apply(this,arguments);var a=this,b=this.options;this.toolbar=BI.createWidget(b.toolbar),this.allSelected=!1,this.toolbar.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.allSelected=this.isSelected(),b===BI.Events.CLICK&&(a.setAllSelected(a.allSelected),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.list=BI.createWidget(b.el,{type:"bi.list_pane",items:b.items,itemsCreator:function(c,d){1===c.times&&a.toolbar.setVisible(!1),b.itemsCreator(c,function(b){d.apply(a,arguments),1===c.times&&(a.toolbar.setVisible(b&&b.length>0),a.toolbar.setEnable(b&&b.length>0)),a._checkAllSelected()})},onLoaded:b.onLoaded,hasNext:b.hasNext}),this.list.on(BI.Controller.EVENT_CHANGE,function(b,c,d){b===BI.Events.CLICK&&(a._checkAllSelected(),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(b.direction),BI.extend({scrolly:!0},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(b.direction,this.toolbar,this.list)})))),b.items.length<=0&&(this.toolbar.setVisible(!1),this.toolbar.setEnable(!1)),BI.isNotNull(b.value)&&this.setValue(b.value)},_checkAllSelected:function(){var a=this.list.getValue().length,b=this.getAllLeaves().length-a,c=this.list.hasNext(),d=this.toolbar.isSelected(),e=a>0&&(b>0||!d&&c);e=e||b>0&&c&&d,this.toolbar.setHalfSelected(e),!e&&this.toolbar.setSelected(a>0&&b<=0&&(!c||d))},setAllSelected:function(a){BI.each(this.getAllButtons(),function(b,c){(c.setSelected||c.setAllSelected).apply(c,[a])}),this.allSelected=!!a,this.toolbar.setSelected(a),this.toolbar.setHalfSelected(!1)},setToolBarVisible:function(a){this.toolbar.setVisible(a)},isAllSelected:function(){return this.allSelected},hasPrev:function(){return this.list.hasPrev()},hasNext:function(){return this.list.hasNext()},prependItems:function(a){this.list.prependItems.apply(this.list,arguments)},addItems:function(a){this.list.addItems.apply(this.list,arguments)},setValue:function(a){var b=a.type===BI.ButtonGroup.CHOOSE_TYPE_ALL;this.setAllSelected(b),this.list[b?"setNotSelectedValue":"setValue"](a.value),this._checkAllSelected()},getValue:function(){return this.isAllSelected()===!1?{type:BI.ButtonGroup.CHOOSE_TYPE_MULTI,value:this.list.getValue(),assist:this.list.getNotSelectedValue()}:{type:BI.ButtonGroup.CHOOSE_TYPE_ALL,value:this.list.getNotSelectedValue(),assist:this.list.getValue()}},empty:function(){this.list.empty()},populate:function(a){this.toolbar.setVisible(!BI.isEmptyArray(a)),this.toolbar.setEnable(!BI.isEmptyArray(a)),this.list.populate.apply(this.list,arguments),this._checkAllSelected()},_setEnable:function(a){BI.SelectList.superclass._setEnable.apply(this,arguments),this.toolbar.setEnable(a)},resetHeight:function(a){var b=(this.toolbar.element.outerHeight()||25)*(this.toolbar.isVisible()?1:0);this.list.resetHeight?this.list.resetHeight(a-b):this.list.element.css({"max-height":a-b+"px"})},setNotSelectedValue:function(){this.list.setNotSelectedValue.apply(this.list,arguments),this._checkAllSelected()},getNotSelectedValue:function(){return this.list.getNotSelectedValue()},getAllButtons:function(){return this.list.getAllButtons()},getAllLeaves:function(){return this.list.getAllLeaves()},getSelectedButtons:function(){return this.list.getSelectedButtons()},getNotSelectedButtons:function(){return this.list.getNotSelectedButtons()},getIndexByValue:function(a){return this.list.getIndexByValue(a)},getNodeById:function(a){return this.list.getNodeById(a)},getNodeByValue:function(a){return this.list.getNodeByValue(a)}}),BI.SelectList.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.select_list",BI.SelectList),BI.LazyLoader=BI.inherit(BI.Widget,{_const:{PAGE:100},_defaultConfig:function(){return BI.extend(BI.LazyLoader.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-lazy-loader",el:{}})},_init:function(){var a=this,b=this.options;BI.LazyLoader.superclass._init.apply(this,arguments);var c=b.items.length;this.loader=BI.createWidget({type:"bi.loader",element:this,el:b.el,itemsCreator:function(b,c){c(a._getNextItems(b))},hasNext:function(a){return a.count=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:30,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:5,right:74},{el:this.vlabel,top:5,right:111},{el:this.hpager,top:5,right:-9},{el:this.hlabel,top:5,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},setValue:function(a){this.trigger.setText(this._digest(a,this.options.items))},setTipType:function(a){this.trigger.setTipType(a)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_text_trigger",BI.SelectTextTrigger),BI.SmallSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SmallSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-small-select-text-trigger bi-border",height:20})},_init:function(){this.options.height-=2,BI.SmallSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digest(a.text,a.items);this.trigger=BI.createWidget({type:"bi.small_text_trigger",element:this,height:a.height-2,text:b.text,cls:b.cls})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?{cls:"",text:d.join(",")}:{cls:"bi-water-mark",text:c.text}},setValue:function(a){var b=this._digest(a,this.options.items);this.trigger.element.removeClass("bi-water-mark").addClass(b.cls),this.trigger.setText(b.text)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.small_select_text_trigger",BI.SmallSelectTextTrigger),BI.SmallTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.SmallTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:20})},_init:function(){BI.SmallTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",textAlign:"left",height:a.height,text:a.text,hgap:b.hgap}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:a.triggerWidth||a.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:a.triggerWidth||a.height}]})},setValue:function(a){this.text.setValue(a)},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.small_text_trigger",BI.SmallTextTrigger),BI.MonthDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.MonthDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-month-combo",height:24,container:null})},_init:function(){BI.MonthDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.month_popup",behaviors:b.behaviors}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue())}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",container:b.container,element:this,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:85,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.combo.hideView(),a.fireEvent(BI.MonthDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.MonthDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.month_date_combo",BI.MonthDateCombo),BI.YearDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.YearDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-combo",min:"1900-01-01",max:"2099-12-31",behaviors:{},height:24,container:null})},_init:function(){BI.YearDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.year_popup",behaviors:b.behaviors,min:b.min,max:b.max}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()), +b.attributes={sorted:b.value}}),a},hasNext:function(){return this.loader.hasNext()},addItems:function(a){this.loader.addItems(a)},populate:function(a){a&&(arguments[0]=this._formatItems(a)),this.loader.populate.apply(this.loader,arguments)},empty:function(){this.loader.empty()},setNotSelectedValue:function(){this.loader.setNotSelectedValue.apply(this.loader,arguments)},getNotSelectedValue:function(){return this.loader.getNotSelectedValue()},setValue:function(){this.loader.setValue.apply(this.loader,arguments)},getValue:function(){return this.loader.getValue()},getAllButtons:function(){return this.loader.getAllButtons()},getAllLeaves:function(){return this.loader.getAllLeaves()},getSelectedButtons:function(){return this.loader.getSelectedButtons()},getNotSelectedButtons:function(){return this.loader.getNotSelectedButtons()},getIndexByValue:function(a){return this.loader.getIndexByValue(a)},getNodeById:function(a){return this.loader.getNodeById(a)},getNodeByValue:function(a){return this.loader.getNodeByValue(a)},getSortedValues:function(){return this.loader.element.sortable("toArray",{attribute:"sorted"})}}),BI.SortList.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.sort_list",BI.SortList),BI.AllCountPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.AllCountPager.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-all-count-pager",height:20,pages:1,curr:1,count:1})},_init:function(){BI.AllCountPager.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.small_text_editor",cls:"pager-editor",validationChecker:function(b){return 0===a.rowCount.getValue()&&"0"===b||BI.isPositiveInteger(b)},hgap:4,vgap:0,value:b.curr,errorText:BI.i18nText("BI-Please_Input_Positive_Integer"),width:35,height:16}),this.pager=BI.createWidget({type:"bi.pager",width:36,layouts:[{type:"bi.horizontal",hgap:1,vgap:1}],dynamicShow:!1,pages:b.pages,curr:b.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Previous_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,cls:"all-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Next_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,cls:"all-pager-next column-next-page-h-font"},hasPrev:b.hasPrev,hasNext:b.hasNext,firstPage:b.firstPage,lastPage:b.lastPage}),this.editor.on(BI.TextEditor.EVENT_CONFIRM,function(){a.pager.setValue(BI.parseInt(a.editor.getValue())),a.fireEvent(BI.AllCountPager.EVENT_CHANGE)}),this.pager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.AllCountPager.EVENT_CHANGE)}),this.pager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.editor.setValue(a.pager.getCurrentPage())}),this.allPages=BI.createWidget({type:"bi.label",width:30,title:b.pages,text:"/"+b.pages}),this.rowCount=BI.createWidget({type:"bi.label",height:b.height,hgap:5,text:b.count,title:b.count});var c=BI.createWidget({type:"bi.left",height:b.height,scrollable:!1,items:[{type:"bi.label",height:b.height,text:BI.i18nText("BI-Basic_Total"),width:15},this.rowCount,{type:"bi.label",height:b.height,text:BI.i18nText("BI-Tiao_Data"),width:50,textAlign:"left"}]});BI.createWidget({type:"bi.center_adapt",element:this,columnSize:["",35,40,36],items:[c,this.editor,this.allPages,this.pager]})},alwaysShowPager:!0,setAllPages:function(a){this.allPages.setText("/"+a),this.allPages.setTitle(a),this.pager.setAllPages(a),this.editor.setEnable(a>=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:20,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:0,right:74},{el:this.vlabel,top:0,right:111},{el:this.hpager,top:0,right:-9},{el:this.hlabel,top:0,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},setValue:function(a){this.trigger.setText(this._digest(a,this.options.items))},setTipType:function(a){this.trigger.setTipType(a)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_text_trigger",BI.SelectTextTrigger),BI.SmallSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SmallSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-small-select-text-trigger bi-border",height:20})},_init:function(){this.options.height-=2,BI.SmallSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digest(a.text,a.items);this.trigger=BI.createWidget({type:"bi.small_text_trigger",element:this,height:a.height-2,text:b.text,cls:b.cls})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?{cls:"",text:d.join(",")}:{cls:"bi-water-mark",text:c.text}},setValue:function(a){var b=this._digest(a,this.options.items);this.trigger.element.removeClass("bi-water-mark").addClass(b.cls),this.trigger.setText(b.text)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.small_select_text_trigger",BI.SmallSelectTextTrigger),BI.SmallTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.SmallTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:20})},_init:function(){BI.SmallTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",textAlign:"left",height:a.height,text:a.text,hgap:b.hgap}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:a.triggerWidth||a.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:a.triggerWidth||a.height}]})},setValue:function(a){this.text.setValue(a)},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.small_text_trigger",BI.SmallTextTrigger),BI.MonthDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.MonthDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-month-combo",height:24,container:null})},_init:function(){BI.MonthDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.month_popup",behaviors:b.behaviors}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue())}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",container:b.container,element:this,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:85,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.combo.hideView(),a.fireEvent(BI.MonthDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.MonthDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.month_date_combo",BI.MonthDateCombo),BI.YearDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.YearDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-combo",min:"1900-01-01",max:"2099-12-31",behaviors:{},height:24,container:null})},_init:function(){BI.YearDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.year_popup",behaviors:b.behaviors,min:b.min,max:b.max}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()), a.combo.hideView(),a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",element:this,container:b.container,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:100,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.YearDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_date_combo",BI.YearDateCombo),BI.DatePicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DatePicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-picker",height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.DatePicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this._month=BI.getDate().getMonth()+1,this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){1===a._month?a.setValue({year:a.year.getValue()-1,month:12}):a.setValue({year:a.year.getValue(),month:a.month.getValue()-1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){12===a._month?a.setValue({year:a.year.getValue()+1,month:1}):a.setValue({year:a.year.getValue(),month:a.month.getValue()+1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",behaviors:b.behaviors,min:b.min,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),this.month=BI.createWidget({type:"bi.month_date_combo",behaviors:b.behaviors}),this.month.on(BI.MonthDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:24},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal",width:120,rgap:10,items:[{el:this.year,lgap:10},this.month]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:24}]}),this.setValue({year:this._year,month:this._month})},_checkLeftValid:function(){var a=this.options,b=!(1===this._month&&this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(12===this._month&&this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a.year,this._month=a.month,this.year.setValue(a.year),this.month.setValue(a.month),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return{year:this.year.getValue(),month:this.month.getValue()}}}),BI.DatePicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_picker",BI.DatePicker),BI.YearPicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.YearPicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-year-picker",behaviors:{},height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.YearPicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:25,height:25}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()-1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:25,height:25}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()+1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",min:b.min,behaviors:b.behaviors,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue(a.year.getValue()),a.fireEvent(BI.YearPicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:25},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal_float",width:50,items:[{el:this.year}]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:25}]}),this.setValue({year:this._year})},_checkLeftValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a,this.year.setValue(a),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return this.year.getValue()}}),BI.YearPicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_picker",BI.YearPicker),BI.DateCalendarPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DateCalendarPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-calendar-popup",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!0},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_init:function(){BI.DateCalendarPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this._day=this.today.getDate(),this.selectedTime=b.selectedTime||{year:this._year,month:this._month,day:this._day},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.calendar=BI.createWidget({direction:"top",logic:{dynamic:!0},type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this),afterCardCreated:function(){},afterCardShow:function(){this.setValue(a.selectedTime)}}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){a.selectedTime=a.datePicker.getValue(),a.selectedTime.day=1,a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime))}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.calendar,left:5,right:5},{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},setValue:function(a){this.datePicker.setValue(a),this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},getValue:function(){return this.selectedTime}}),BI.DateCalendarPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_calendar_popup",BI.DateCalendarPopup),BI.YearPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.YearPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-popup",behaviors:{},min:"1900-01-01",max:"2099-12-31"})},_createYearCalendar:function(a){var b=this.options,c=this._year,d=BI.createWidget({type:"bi.year_calendar",behaviors:b.behaviors,min:b.min,max:b.max,logic:{dynamic:!0},year:c+12*a});return d.setValue(this._year),d},_init:function(){BI.YearPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.selectedYear=this._year=BI.getDate().getFullYear();var c=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24,value:-1}),d=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24,value:1});this.navigation=BI.createWidget({type:"bi.navigation",element:this,single:!0,logic:{dynamic:!0},tab:{cls:"year-popup-navigation bi-high-light bi-split-top",height:24,items:[c,d]},cardCreator:BI.bind(this._createYearCalendar,this),afterCardShow:function(){this.setValue(a.selectedYear);var b=this.getSelectedCard();c.setEnable(!b.isFrontYear()),d.setEnable(!b.isFinalYear())}}),this.navigation.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedYear=this.getValue(),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a.fireEvent(BI.YearPopup.EVENT_CHANGE,a.selectedYear)}),BI.isKey(b.value)&&this.setValue(b.value)},getValue:function(){return this.selectedYear},setValue:function(a){var b=this.options;a=BI.parseInt(a),BI.checkDateVoid(a,1,1,b.min,b.max)[0]?(a=BI.getDate().getFullYear(),this.selectedYear="",this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue("")):(this.selectedYear=a,this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue(a))}}),BI.YearPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_popup",BI.YearPopup),BI.DateTriangleTrigger=BI.inherit(BI.Trigger,{_const:{height:24,iconWidth:12,iconHeight:12},_defaultConfig:function(){return BI.extend(BI.DateTriangleTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-triangle-trigger pull-down-ha-font cursor-pointer",height:24})},_init:function(){BI.DateTriangleTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"right",text:a.text,value:a.value,height:b.height}),BI.createWidget({type:"bi.vertical_adapt",element:this,items:[{el:this.text,rgap:5},{type:"bi.icon_label",width:16}]})},setValue:function(a){this.text.setValue(a)},getValue:function(){return this.text.getValue()},setText:function(a){this.text.setText(a)},getText:function(){return this.item.getText()},getKey:function(){}}),BI.shortcut("bi.date_triangle_trigger",BI.DateTriangleTrigger),BI.StaticDatePaneCard=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StaticDatePaneCard.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-pane",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_init:function(){BI.StaticDatePaneCard.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this.selectedTime=b.selectedTime||{year:this._year,month:this._month},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){var b=a.datePicker.getValue(),c=BI.getMonthDays(BI.getDate(b.year,b.month-1,1)),d=a.selectedTime.day||0;d>c&&(d=c),a.selectedTime={year:b.year,month:b.month},0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.setValue(b.selectedTime),BI.createWidget({type:"bi.vtape",element:this,items:[{el:this.datePicker,height:40},this.calendar],hgap:10}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){this._setDatePicker(a),this._setCalendar(a)},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_pane_card",BI.StaticDatePaneCard),BI.DynamicDatePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDatePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDatePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDatePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDatePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDatePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDatePane.Static:return{type:"bi.static_date_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDatePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this}}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateCombo.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_pane",BI.DynamicDatePane),BI.extend(BI.DynamicDatePane,{Static:1,Dynamic:2}),BI.DateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:290,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},_defaultConfig:function(){return BI.extend(BI.DateTimeCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-combo bi-border",width:200,height:24})},_init:function(){BI.DateTimeCombo.superclass._init.apply(this,arguments);var a=this,b=this.options,c=BI.getDate();this.storeValue=BI.isNotNull(b.value)?b.value:{year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate(),hour:c.getHours(),minute:c.getMinutes(),second:c.getSeconds()},this.trigger=BI.createWidget({type:"bi.date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),this.popup=BI.createWidget({type:"bi.date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),a.setValue(this.storeValue),this.popup.on(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE,function(){a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CANCEL)}),this.popup.on(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE,function(){a.storeValue=a.popup.getValue(),a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CONFIRM)}),this.combo=BI.createWidget({type:"bi.combo",container:b.container,toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,adjustLength:this.constants.comboAdjustHeight,popup:{el:this.popup,width:this.constants.popupWidth,stopPropagation:!1},hideChecker:function(a){return 0===d.element.find(a.target).length}}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW)});var d=BI.createWidget({type:"bi.icon_button",cls:"bi-trigger-icon-button date-font bi-border-right",width:24,height:24});d.on(BI.IconButton.EVENT_CHANGE,function(){a.combo.isViewVisible()||a.combo.showView()}),BI.createWidget({type:"bi.htape",element:this,items:[{type:"bi.absolute",items:[{el:this.combo,top:0,left:0,right:0,bottom:0},{el:d,top:0,right:0}]}]})},setValue:function(a){this.storeValue=a,this.popup.setValue(a),this.trigger.setValue(a)},getValue:function(){return this.storeValue},hidePopupView:function(){this.combo.hideView()}}),BI.DateTimeCombo.EVENT_CANCEL="EVENT_CANCEL",BI.DateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW="BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.date_time_combo",BI.DateTimeCombo),BI.DateTimePopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimePopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-popup",width:268,height:374})},_init:function(){BI.DateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.cancelButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top bi-border-right",shadow:!0,text:BI.i18nText("BI-Basic_Cancel")}),this.cancelButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE)}),this.okButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top",shadow:!0,text:BI.i18nText("BI-Basic_OK")}),this.okButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE)}),this.dateCombo=BI.createWidget({type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max}),a.dateCombo.on(BI.DateCalendarPopup.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}),this.dateSelect=BI.createWidget({type:"bi.vertical_adapt",cls:"bi-border-top",items:[{type:"bi.label",text:BI.i18nText("BI-Basic_Time"),width:45},{type:"bi.date_time_select",max:23,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.hour=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.minute=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.second=b}}]}),this.setValue(b.value),this.dateButton=BI.createWidget({type:"bi.grid",items:[[this.cancelButton,this.okButton]]}),BI.createWidget({element:this,type:"bi.vtape",items:[{el:this.dateCombo},{el:this.dateSelect,height:50},{el:this.dateButton,height:30}]})},setValue:function(a){var b,c=a;BI.isNull(c)?(b=BI.getDate(),this.dateCombo.setValue({year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}),this.hour.setValue(b.getHours()),this.minute.setValue(b.getMinutes()),this.second.setValue(b.getSeconds())):(this.dateCombo.setValue({year:c.year,month:c.month,day:c.day}),this.hour.setValue(c.hour),this.minute.setValue(c.minute),this.second.setValue(c.second))},getValue:function(){return{year:this.dateCombo.getValue().year,month:this.dateCombo.getValue().month,day:this.dateCombo.getValue().day,hour:this.hour.getValue(),minute:this.minute.getValue(),second:this.second.getValue()}}}),BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE="BUTTON_CANCEL_EVENT_CHANGE",BI.DateTimePopup.CALENDAR_EVENT_CHANGE="CALENDAR_EVENT_CHANGE",BI.shortcut("bi.date_time_popup",BI.DateTimePopup),BI.DateTimeSelect=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimeSelect.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-select bi-border",max:23,min:0})},_init:function(){BI.DateTimeSelect.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.sign_editor",value:this._alertInEditorValue(b.min),allowBlank:!1,errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Please_Input_Natural_Number"):BI.i18nText("BI-Numerical_Interval_Input_Data")},validationChecker:function(a){return BI.isNaturalNumber(a)}}),this.editor.on(BI.TextEditor.EVENT_CONFIRM,function(){a._finetuning(0),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.topBtn=BI.createWidget({type:"bi.icon_button",cls:"column-pre-page-h-font top-button bi-border-left bi-border-bottom"}),this.topBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.bottomBtn=BI.createWidget({type:"bi.icon_button",cls:"column-next-page-h-font bottom-button bi-border-left"}),this.bottomBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(-1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this._finetuning(0),BI.createWidget({type:"bi.htape",element:this,items:[this.editor,{el:{type:"bi.grid",columns:1,rows:2,items:[{column:0,row:0,el:this.topBtn},{column:0,row:1,el:this.bottomBtn}]},width:30}]})},_alertOutEditorValue:function(a){return a>this.options.max&&(a=this.options.min),athis.options.max&&(a=this.options.min),ac&&(d=c),a.selectedTime=BI.extend(a.selectedTime,{year:b.year,month:b.month,day:d}),0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.vtape",element:this,hgap:10,items:[{el:this.datePicker,height:40},this.calendar,{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.fireEvent("EVENT_CHANGE")}}]},height:40}]}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]}),this.setValue(b.selectedTime)},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=BI.extend({},this.timeSelect.getValue(),a)},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){a=a||{},this._setDatePicker(a),this._setCalendar(a),this.timeSelect.setValue({hour:a.hour,minute:a.minute,second:a.second})},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_time_pane_card",BI.StaticDateTimePaneCard),BI.DynamicDateTimePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateTimePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateTimePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDateTimePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDateTimePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDateTimePane.Static:return{type:"bi.static_date_time_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDateTimePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this}}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateTimePane.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateTimePane.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_time_pane",BI.DynamicDateTimePane),BI.extend(BI.DynamicDateTimePane,{Static:1,Dynamic:2}),BI.DownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-combo",height:24,items:[],adjustLength:0,direction:"bottom",trigger:"click",container:null,stopPropagation:!1,el:{}})},_init:function(){BI.DownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.popupview=BI.createWidget({type:"bi.down_list_popup",items:b.items,chooseType:b.chooseType,value:b.value}),this.popupview.on(BI.DownListPopup.EVENT_CHANGE,function(b){a.fireEvent(BI.DownListCombo.EVENT_CHANGE,b),a.downlistcombo.hideView()}),this.popupview.on(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,function(b,c){a.fireEvent(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,b,c),a.downlistcombo.hideView()}),this.downlistcombo=BI.createWidget({element:this,type:"bi.combo",trigger:b.trigger,isNeedAdjustWidth:!1,container:b.container,adjustLength:b.adjustLength,direction:b.direction,stopPropagation:b.stopPropagation,el:BI.createWidget(b.el,{type:"bi.icon_trigger",extraCls:b.iconCls?b.iconCls:"",width:b.width,height:b.height}),popup:{el:this.popupview,stopPropagation:!0,maxHeight:1e3,minWidth:140}}),this.downlistcombo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.DownListCombo.EVENT_BEFORE_POPUPVIEW)})},hideView:function(){this.downlistcombo.hideView()},showView:function(a){this.downlistcombo.showView(a)},populate:function(a){this.popupview.populate(a)},setValue:function(a){this.popupview.setValue(a)},getValue:function(){return this.popupview.getValue()}}),BI.DownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DownListCombo.EVENT_SON_VALUE_CHANGE="EVENT_SON_VALUE_CHANGE",BI.DownListCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.down_list_combo",BI.DownListCombo),BI.DownListGroup=BI.inherit(BI.Widget,{constants:{iconCls:"check-mark-ha-font"},_defaultConfig:function(){return BI.extend(BI.DownListGroup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-group",items:[{el:{}}]})},_init:function(){BI.DownListGroup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.downlistgroup=BI.createWidget({element:this,type:"bi.button_tree",items:a.items,chooseType:0,layouts:[{type:"bi.vertical",hgap:0,vgap:0}],value:a.value}),this.downlistgroup.on(BI.Controller.EVENT_CHANGE,function(a){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.DownListGroup.EVENT_CHANGE,arguments)})},getValue:function(){return this.downlistgroup.getValue()},setValue:function(a){this.downlistgroup.setValue(a)}}),BI.DownListGroup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group",BI.DownListGroup),BI.DownListItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-item bi-list-item-active",cls:"",height:24,logic:{dynamic:!0},selected:!1,iconHeight:null,iconWidth:null,textHgap:0,textVgap:0,textLgap:0,textRgap:0})},_init:function(){BI.DownListItem.superclass._init.apply(this,arguments); var a=this.options;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"left",hgap:a.textHgap,vgap:a.textVgap,lgap:a.textLgap,rgap:a.textRgap,text:a.text,value:a.value,keyword:a.keyword,height:a.height}),this.icon=BI.createWidget({type:"bi.center_adapt",width:36,height:a.height,items:[{el:{type:"bi.icon",width:a.iconWidth,height:a.iconHeight}}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Left),BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Left,this.icon,this.text)}))))},setValue:function(){this.isReadOnly()||this.text.setValue.apply(this.text,arguments)},getValue:function(){return this.text.getValue()},setText:function(){this.text.setText.apply(this.text,arguments)},getText:function(){return this.text.getText()},doClick:function(){BI.DownListItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListItem.EVENT_CHANGE,this.getValue(),this)},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)}}),BI.DownListItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_item",BI.DownListItem),BI.DownListGroupItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListGroupItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-down-list-group-item",logic:{dynamic:!1},iconCls1:"dot-e-font",iconCls2:"pull-right-e-font"})},_init:function(){BI.DownListGroupItem.superclass._init.apply(this,arguments);var a=this.options,b=this;this.text=BI.createWidget({type:"bi.label",cls:"list-group-item-text",textAlign:"left",text:a.text,value:a.value,height:a.height}),this.icon1=BI.createWidget({type:"bi.icon_button",cls:a.iconCls1,width:36,forceNotSelected:!0,selected:this._digest(a.value)}),this.icon2=BI.createWidget({type:"bi.icon_button",cls:a.iconCls2,width:24,forceNotSelected:!0});var c=BI.createWidget({type:"bi.layout",width:24});BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.icon2,top:0,bottom:0,right:0}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("horizontal",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("left",this.icon1,this.text,c)})))),this.element.hover(function(){b.isEnabled()&&b.hover()},function(){b.isEnabled()&&b.dishover()})},_digest:function(a){var b=this.options;return a=BI.isArray(a)?a:[a],BI.any(a,function(a,c){return BI.contains(b.childValues,c)})},hover:function(){BI.DownListGroupItem.superclass.hover.apply(this,arguments),this.icon1.element.addClass("hover"),this.icon2.element.addClass("hover")},dishover:function(){BI.DownListGroupItem.superclass.dishover.apply(this,arguments),this.icon1.element.removeClass("hover"),this.icon2.element.removeClass("hover")},doClick:function(){BI.DownListGroupItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListGroupItem.EVENT_CHANGE,this.getValue())},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},setValue:function(a){this.icon1.setSelected(this._digest(a))}}),BI.DownListGroupItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group_item",BI.DownListGroupItem),BI.DownListPopup=BI.inherit(BI.Pane,{constants:{nextIcon:"pull-right-e-font",height:24,iconHeight:12,iconWidth:12,hgap:0,vgap:0,border:1},_defaultConfig:function(){var a=BI.DownListPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-popup",items:[],chooseType:BI.Selection.Multi})},_init:function(){BI.DownListPopup.superclass._init.apply(this,arguments),this.singleValues=[],this.childValueMap={},this.fatherValueMap={},this.items=BI.deepClone(this.options.items);var a=this,b=this.options,c=this._createChildren(this.items);this.popup=BI.createWidget({type:"bi.button_tree",items:BI.createItems(c,{},{adjustLength:-2}),layouts:[{type:"bi.vertical",hgap:this.constants.hgap,vgap:this.constants.vgap}],value:this._digest(b.value),chooseType:b.chooseType}),this.popup.on(BI.ButtonTree.EVENT_CHANGE,function(b,c){var d=b;if(BI.isNotNull(a.childValueMap[b])?(d=a.childValueMap[b],a.fireEvent(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,d,a.fatherValueMap[b])):a.fireEvent(BI.DownListPopup.EVENT_CHANGE,d,c),!BI.contains(a.singleValues,d)){var e=a.getValue(),f=[];BI.each(e,function(a,b){b.value!=d&&f.push(b)}),a.setValue(f)}}),BI.createWidget({type:"bi.vertical",element:this,items:[this.popup],vgap:5})},_createChildren:function(a){var b=this,c=[];return BI.each(a,function(d,e){var f={type:"bi.down_list_group",items:[]};if(BI.each(e,function(a,c){BI.isNotEmptyArray(c.children)&&!BI.isEmpty(c.el)?(c.type="bi.combo_group",c.cls="down-list-group",c.trigger="hover",c.isNeedAdjustWidth=!1,c.el.title=c.el.title||c.el.text,c.el.type="bi.down_list_group_item",c.el.logic={dynamic:!0},c.el.height=b.constants.height,c.el.iconCls2=b.constants.nextIcon,c.popup={lgap:1,el:{type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},innerVGap:5,maxHeight:378},c.el.childValues=[],BI.each(c.children,function(a,d){var e=BI.deepClone(c.el.value),f=BI.deepClone(d.value);b.singleValues.push(d.value),d.type="bi.down_list_item",d.extraCls=" child-down-list-item",d.title=d.title||d.text,d.textRgap=10,d.isNeedAdjustWidth=!1,d.logic={dynamic:!0},d.father=e,b.fatherValueMap[b._createChildValue(e,f)]=e,b.childValueMap[b._createChildValue(e,f)]=f,d.value=b._createChildValue(e,f),c.el.childValues.push(d.value)})):(c.type="bi.down_list_item",c.title=c.title||c.text,c.textRgap=10,c.isNeedAdjustWidth=!1,c.logic={dynamic:!0});var d={};d.el=c,f.items.push(d)}),b._isGroup(f.items)&&BI.each(f.items,function(a,c){b.singleValues.push(c.el.value)}),c.push(f),b._needSpliter(d,a.length)){var g=BI.createWidget({type:"bi.vertical",items:[{el:{type:"bi.layout",cls:"bi-down-list-spliter bi-split-top cursor-pointer",height:0}}],cls:"bi-down-list-spliter-container cursor-pointer",vgap:5,lgap:10,rgap:0});c.push(g)}}),c},_isGroup:function(a){return a.length>1},_needSpliter:function(a,b){return a0?1:0}},setValue:function(a){a=a||{},this.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT;var b=[],c=[];BI.isNotNull(a.year)&&(b.push(BI.DynamicDateCard.TYPE.YEAR),c.push(this._createValue(BI.DynamicDateCard.TYPE.YEAR,a.year))),BI.isNotNull(a.quarter)&&(b.push(BI.DynamicDateCard.TYPE.QUARTER),c.push(this._createValue(BI.DynamicDateCard.TYPE.QUARTER,a.quarter))),BI.isNotNull(a.month)&&(b.push(BI.DynamicDateCard.TYPE.MONTH),c.push(this._createValue(BI.DynamicDateCard.TYPE.MONTH,a.month))),BI.isNotNull(a.week)&&(b.push(BI.DynamicDateCard.TYPE.WEEK),c.push(this._createValue(BI.DynamicDateCard.TYPE.WEEK,a.week))),BI.isNotNull(a.day)&&(b.push(BI.DynamicDateCard.TYPE.DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.DAY,a.day))),BI.isNotNull(a.workDay)&&(b.push(BI.DynamicDateCard.TYPE.WORK_DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.WORK_DAY,a.workDay))),this.checkgroup.setValue(b),this.workDayBox.setSelected(BI.isNotNull(a.workDay)),this.resultPane.populate(this._getParamJson(c,a.position))},getValue:function(){var a=this,b={},c=this.checkgroup.getValue(),d=this.resultPane.getAllButtons();if(0!==c.length&&BI.each(d,function(c,d){var e=d.getValue();switch(e.dateType){case BI.DynamicDateCard.TYPE.YEAR:b.year=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.QUARTER:b.quarter=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.MONTH:b.month=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.WEEK:b.week=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.DAY:b.day=0===e.offset?-e.value:e.value}BI.isNull(e.dateType)&&(b.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT)}),this.workDayBox.isSelected()){var e=d[0].getValue();b.workDay=0===e.offset?-e.value:e.value}return b}}),BI.shortcut("bi.dynamic_date_card",BI.DynamicDateCard),BI.extend(BI.DynamicDateCard,{TYPE:{YEAR:1,QUARTER:2,MONTH:3,WEEK:4,DAY:5,WORK_DAY:6},OFFSET:{CURRENT:1,BEGIN:2,END:3}}),BI.DynamicDateCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow bi-border-radius",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW)}}]},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},_defaultState:function(){},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()}}),BI.DynamicDateCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW="BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_combo",BI.DynamicDateCombo),BI.extend(BI.DynamicDateCombo,{Static:1,Dynamic:2}),BI.DynamicDateParamItem=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-param-item",dateType:BI.DynamicDateCard.TYPE.YEAR,value:0,offset:0,height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.sign_editor",cls:"bi-border",height:22,validationChecker:function(a){return BI.isNaturalNumber(a)},value:b.value,ref:function(){a.editor=this},errorText:function(a){return BI.isEmptyString(a)?BI.i18nText("BI-Basic_Please_Input_Content"):BI.i18nText("BI-Please_Input_Natural_Number")},allowBlank:!1,listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]},width:60},{el:{type:"bi.label",height:24,text:this._getText()},width:b.dateType===BI.DynamicDateCard.TYPE.WORK_DAY?60:20},{type:"bi.text_value_combo",height:24,items:[{text:BI.i18nText("BI-Basic_Front"),value:0},{text:BI.i18nText("BI-Basic_Behind"),value:1}],ref:function(){a.offsetCombo=this},container:null,value:b.offset,listeners:[{eventName:BI.TextValueCombo.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]}]}},_getText:function(){var a="";switch(this.options.dateType){case BI.DynamicDateCard.TYPE.YEAR:a=BI.i18nText("BI-Basic_Year");break;case BI.DynamicDateCard.TYPE.QUARTER:a=BI.i18nText("BI-Basic_Single_Quarter");break;case BI.DynamicDateCard.TYPE.MONTH:a=BI.i18nText("BI-Basic_Month");break;case BI.DynamicDateCard.TYPE.WEEK:a=BI.i18nText("BI-Basic_Week");break;case BI.DynamicDateCard.TYPE.DAY:a=BI.i18nText("BI-Basic_Day");break;case BI.DynamicDateCard.TYPE.WORK_DAY:default:a=BI.i18nText("BI-Basic_Work_Day")}return a},setValue:function(a){a=a||{},a.value=a.value||0,a.offset=a.offset||0,this.editor.setValue(a.value),this.offsetCombo.setValue(a.offset)},getValue:function(){return{dateType:this.options.dateType,value:this.editor.getValue(),offset:this.offsetCombo.getValue()[0]}}}),BI.DynamicDateParamItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.dynamic_date_param_item",BI.DynamicDateParamItem),BI.DynamicDatePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-popup",width:248,height:344},_init:function(){BI.DynamicDatePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",shadow:!0,text:BI.i18nText("BI-Basic_Clear"),textHeight:c.buttonHeight-1,listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",shadow:!0,textHeight:c.buttonHeight-1,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,listeners:[{eventName:BI.DateCalendarPopup.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.EVENT_CHANGE)}}],ref:function(){a.ymd=this}}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.DynamicDatePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_popup",BI.DynamicDatePopup),BI.DynamicDateTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Date_Trigger_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text")},title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.getDate();f=BI.DynamicDateHelper.getCalculation(d);var g=BI.print(f,"%Y-%x-%e");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day),"%Y-%X-%d")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split("-");a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2]}}}a.fireEvent(BI.DynamicDateTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_SPACE,function(){a.editor.isValid()&&a.editor.blur()}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>=0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))), d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day),"%Y-%X-%d");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue}}),BI.DynamicDateTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTrigger.EVENT_START="EVENT_START",BI.DynamicDateTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_trigger",BI.DynamicDateTrigger),BI.DynamicDateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateTimeCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateTimeCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateTimeCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate(),hour:0,minute:0,second:0}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateTimeCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()},isValid:function(){return this.trigger.isValid()}}),BI.DynamicDateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_time_combo",BI.DynamicDateTimeCombo),BI.extend(BI.DynamicDateTimeCombo,{Static:1,Dynamic:2}),BI.DynamicDateTimePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-time-popup",width:248,height:385},_init:function(){BI.DynamicDateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_Clear"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.vtape",items:[{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,ref:function(){a.ymd=this}},{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){}}]},height:40}]}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a.timeSelect.setValue(),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.timeSelect.setValue(),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.timeSelect.setValue({hour:c.hour,minute:c.minute,second:c.second}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){var a=this.dateTab.getSelect();return{type:a,value:a===BI.DynamicDateTimeCombo.Static?BI.extend(this.ymd.getValue(),this.timeSelect.getValue()):this.dynamicPane.getValue()}}}),BI.DynamicDateTimePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_time_popup",BI.DynamicDateTimePopup),BI.DynamicDateTimeSelect=BI.inherit(BI.Widget,{props:{baseCls:"bi-date-time-select bi-split-top"},render:function(){var a=this;return{type:"bi.center_adapt",items:[{type:"bi.vertical_adapt",items:[{el:{type:"bi.number_editor",ref:function(){a.hour=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<24},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-23"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkHour(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.HOUR);this.setValue(b)}}],width:60,height:24},lgap:14},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.minute=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkMinute(b),this.setValue(a._formatValueToDoubleDigit(b),BI.DynamicDateTimeSelect.MINUTE),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.MINUTE);this.setValue(b)}}],width:60,height:24},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.second=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkSecond(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}}],width:60,height:24}]}]}},_checkBorder:function(a){a=a||{},this._checkHour(a.hour),this._checkMinute(a.minute),this._checkSecond(a.second)},_checkHour:function(a){this.hour.setDownEnable(BI.parseInt(a)>0),this.hour.setUpEnable(BI.parseInt(a)<23)},_checkMinute:function(a){this.minute.setDownEnable(BI.parseInt(a)>0),this.minute.setUpEnable(BI.parseInt(a)<59)},_checkSecond:function(a){this.second.setDownEnable(BI.parseInt(a)>0),this.second.setUpEnable(BI.parseInt(a)<59)},_autoSwitch:function(a,b){var c=0,d=a+"";switch(b){case BI.DynamicDateTimeSelect.HOUR:c=2;break;case BI.DynamicDateTimeSelect.MINUTE:c=5}return 1===d.length&&BI.parseInt(d)>c&&(d="0"+d),2===d.length&&(b===BI.DynamicDateTimeSelect.HOUR?this.minute.focus():this.second.focus()),d},_formatValueToDoubleDigit:function(a){(BI.isNull(a)||BI.isEmptyString(a))&&(a=0);var b=BI.parseInt(a);return b<10&&(b="0"+b),b},_assertValue:function(a){return a=a||{},a.hour=this._formatValueToDoubleDigit(a.hour)||"00",a.minute=this._formatValueToDoubleDigit(a.minute)||"00",a.second=this._formatValueToDoubleDigit(a.second)||"00",a},getValue:function(){return{hour:BI.parseInt(this.hour.getValue()),minute:BI.parseInt(this.minute.getValue()),second:BI.parseInt(this.second.getValue())}},setValue:function(a){a=this._assertValue(a),this.hour.setValue(a.hour),this.minute.setValue(a.minute),this.second.setValue(a.second),this._checkBorder(a)}}),BI.DynamicDateTimeSelect.EVENT_CONFIRM="EVENT_CONFIRM",BI.shortcut("bi.dynamic_date_time_select",BI.DynamicDateTimeSelect),BI.extend(BI.DynamicDateTimeSelect,{HOUR:1,MINUTE:2}),BI.DynamicDateTimeTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-time-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTimeTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Basic_Date_Time_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text")},title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.DynamicDateHelper.getCalculation(d),g=BI.print(f,"%Y-%x-%e %H:%M:%S");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day,d.hour||0,d.minute||0,d.second||0),"%Y-%X-%d %H:%M:%S")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split(/-|\s|:/);a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2],hour:0|c[3],minute:0|c[4],second:0|c[5]}}}a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d %H:%M:%S"),"%Y-%x-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d %H:%M:%S"),"%Y-%X-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e %H:%M:%S"),"%Y-%x-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e %H:%M:%S"),"%Y-%X-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e %H:%M:%S");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day,c.hour||0,c.minute||0,c.second||0),"%Y-%X-%d %H:%M:%S");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue},isValid:function(){return this.editor.isValid()}}),BI.DynamicDateTimeTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeTrigger.EVENT_START="EVENT_START",BI.DynamicDateTimeTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTimeTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_time_trigger",BI.DynamicDateTimeTrigger),BI.SearchEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-search-editor bi-border bi-focus-shadow",height:24,errorText:"",watermark:BI.i18nText("BI-Basic_Search"),validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){this.options.height-=2,BI.SearchEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,hgap:1,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"close-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.SearchEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:{type:"bi.icon_label",cls:"search-font"},width:24},{el:a.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SearchEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SearchEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SearchEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SearchEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SearchEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SearchEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SearchEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SearchEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.SearchEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.SearchEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SearchEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SearchEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SearchEditor.EVENT_STOP)}),this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},getKeywords:function(){var a=this.editor.getValue(),b=a.match(/[\S]+/g);return BI.isEndWithBlank(a)?b.concat([" "]):b},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isEditing:function(){return this.editor.isEditing()},isValid:function(){return this.editor.isValid()}}),BI.SearchEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SearchEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SearchEditor.EVENT_BLUR="EVENT_BLUR",BI.SearchEditor.EVENT_CLICK="EVENT_CLICK",BI.SearchEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SearchEditor.EVENT_SPACE="EVENT_SPACE",BI.SearchEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.SearchEditor.EVENT_CLEAR="EVENT_CLEAR",BI.SearchEditor.EVENT_START="EVENT_START",BI.SearchEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SearchEditor.EVENT_STOP="EVENT_STOP",BI.SearchEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SearchEditor.EVENT_VALID="EVENT_VALID",BI.SearchEditor.EVENT_ERROR="EVENT_ERROR",BI.SearchEditor.EVENT_ENTER="EVENT_ENTER",BI.SearchEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SearchEditor.EVENT_REMOVE="EVENT_REMOVE",BI.SearchEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.search_editor",BI.SearchEditor),BI.SmallSearchEditor=BI.inherit(BI.SearchEditor,{_defaultConfig:function(){var a=BI.SmallSearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-small-search-editor",height:24})},_init:function(){BI.SmallSearchEditor.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.small_search_editor",BI.SmallSearchEditor),BI.TextEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.TextEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{extraCls:"bi-text-editor bi-border",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:"",height:24})},_init:function(){BI.TextEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;BI.isNumber(b.height)&&this.element.css({height:b.height-2}),BI.isNumber(b.width)&&this.element.css({width:b.width-2}),this.editor=BI.createWidget({type:"bi.editor",height:b.height-2,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,title:b.title,tipType:b.tipType,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.TextEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.TextEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.TextEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.TextEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.TextEditor.EVENT_KEY_DOWN)}),this.editor.on(BI.Editor.EVENT_SPACE,function(b){a.fireEvent(BI.TextEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(b){a.fireEvent(BI.TextEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.TextEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.TextEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(b){a.fireEvent(BI.TextEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.TextEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.TextEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.TextEditor.EVENT_STOP)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.TextEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.TextEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.TextEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.TextEditor.EVENT_EMPTY)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]})},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isValid:function(){return this.editor.isValid()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()}}),BI.TextEditor.EVENT_CHANGE="EVENT_CHANGE",BI.TextEditor.EVENT_FOCUS="EVENT_FOCUS",BI.TextEditor.EVENT_BLUR="EVENT_BLUR",BI.TextEditor.EVENT_CLICK="EVENT_CLICK",BI.TextEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.TextEditor.EVENT_SPACE="EVENT_SPACE",BI.TextEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.TextEditor.EVENT_START="EVENT_START",BI.TextEditor.EVENT_PAUSE="EVENT_PAUSE",BI.TextEditor.EVENT_STOP="EVENT_STOP",BI.TextEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.TextEditor.EVENT_VALID="EVENT_VALID",BI.TextEditor.EVENT_ERROR="EVENT_ERROR",BI.TextEditor.EVENT_ENTER="EVENT_ENTER",BI.TextEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.TextEditor.EVENT_REMOVE="EVENT_REMOVE",BI.TextEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.text_editor",BI.TextEditor),BI.SmallTextEditor=BI.inherit(BI.TextEditor,{_defaultConfig:function(){var a=BI.SmallTextEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-small-text-editor",height:24})},_init:function(){BI.SmallTextEditor.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.small_text_editor",BI.SmallTextEditor),BI.IntervalSlider=BI.inherit(BI.Single,{_constant:{EDITOR_WIDTH:58,EDITOR_R_GAP:60,EDITOR_HEIGHT:30,SLIDER_WIDTH_HALF:15,SLIDER_WIDTH:30,SLIDER_HEIGHT:30,TRACK_HEIGHT:24},props:{baseCls:"bi-interval-slider bi-slider-track",digit:!1,unit:""},render:function(){var a=this,b=this._constant;return this.enable=!1,this.valueOne="",this.valueTwo="",this.calculation=new BI.AccurateCalculationModel,this.grayTrack=BI.createWidget({type:"bi.layout",cls:"gray-track",height:6}),this.blueTrack=BI.createWidget({type:"bi.layout",cls:"blue-track bi-high-light-background",height:6}),this.track=this._createTrackWrapper(),this.labelOne=BI.createWidget({type:"bi.sign_text_editor",cls:"slider-editor-button",text:this.options.unit,allowBlank:!1,width:b.EDITOR_WIDTH,validationChecker:function(b){return a._checkValidation(b)}}),this.labelOne.element.hover(function(){a.labelOne.element.removeClass("bi-border").addClass("bi-border")},function(){a.labelOne.element.removeClass("bi-border")}),this.labelOne.on(BI.Editor.EVENT_CONFIRM,function(){ diff --git a/dist/fineui.js b/dist/fineui.js index 84e867b12..03b8cbec8 100644 --- a/dist/fineui.js +++ b/dist/fineui.js @@ -264,7 +264,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -272,10084 +272,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + /*--------------------------------------------------------------------------*/ - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + /** Used to generate unique IDs. */ + var idCounter = 0; - /*--------------------------------------------------------------------------*/ + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; + if (index < 0) { + return false; } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; } + } - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; } - return result; + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } } + return true; + } - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - while (++index < length) { - array[offset + index] = values[index]; + if (newValue === undefined) { + newValue = srcValue; } - return array; + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; + var isCommon = newValue === undefined; - if (initAccum && length) { - accumulator = array[++index]; + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); } - return false; - } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; + else { + seen = iteratee ? [] : result; } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { return -1; - } + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; } + var data = isBindKey ? undefined : getData(func); - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - array.sort(comparer); - while (length--) { - array[length] = array[length].value; + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; } - return array; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); + object = object.buffer; + other = other.buffer; - while (++index < n) { - result[index] = iteratee(index); + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; } - return result; - } + return true; - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } + case errorTag: + return object.name == other.name && object.message == other.message; - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; + case mapTag: + var convert = mapToArray; - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); + }); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); + case boolTag: + case dateTag: + return new Ctor(+object); - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } + case dataViewTag: + return cloneDataView(object, isDeep); - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; + case mapTag: + return new Ctor; - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } + case numberTag: + case stringTag: + return new Ctor(object); - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); + case regexpTag: + return cloneRegExp(object); - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } + case setTag: + return new Ctor; - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; + case symbolTag: + return cloneSymbol(object); } + } - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; }); - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); + }; + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } - return this; + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; } - - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; } - - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { - return false; + if (isPrototype(value)) { + return !baseKeys(value).length; } - - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); } - /*------------------------------------------------------------------------*/ - - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; } - - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; - - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); - - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); - - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; - - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; }); - - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; - - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); }); - - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); - - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; + }; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); - - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); - LazyWrapper.prototype.compact = function() { - return this.filter(identity); - }; + /*------------------------------------------------------------------------*/ - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; }; - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); - }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; }; + }); - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; }; + }); - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); - }; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); }; + }); - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; - }; - }); + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); + } + return this.map(function(value) { + return baseInvoke(value, path, args); }); - - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); - - names.push({ 'name': methodName, 'func': lodashFunc }); - } + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; }); - - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; - - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; - - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; - - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } - - /*--------------------------------------------------------------------------*/ - - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; - - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; - } + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 基本函数 @@ -10917,6 +10953,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -11029,12 +11066,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - 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a=[],b=localStorage.length;b>=0;b--){var c=localStorage.key(b);if(c){var d=BI.Cache._getKeyPrefix();0===c.indexOf(d)&&(a[a.length]=c.substring(d.length))}}return a},addCookie:function(a,b,c,d){var e=a+"="+escape(b);if(d&&d>0){var f=new Date;f.setTime(BI.getTime()+3600*d*1e3),e=e+"; expires="+f.toGMTString()}c&&(e=e+"; path="+c),document.cookie=e},getCookie:function(a){var b,c=new RegExp("(^| )"+a+"=([^;]*)(;|$)");return(b=document.cookie.match(c))?unescape(b[2]):null},deleteCookie:function(a,b){var c=new Date;c.setTime(BI.getTime()-1e4);var d=a+"=v; expires="+c.toGMTString();b&&(d=d+"; path="+b),document.cookie=d}},BI.CellSizeAndPositionManager=function(a,b,c){this._cellSizeGetter=b,this._cellCount=a,this._estimatedCellSize=c,this._cellSizeAndPositionData={},this._lastMeasuredIndex=-1},BI.CellSizeAndPositionManager.prototype={constructor:BI.CellSizeAndPositionManager,configure:function(a,b){this._cellCount=a,this._estimatedCellSize=b},getCellCount:function(){return this._cellCount},getEstimatedCellSize:function(){return this._estimatedCellSize},getLastMeasuredIndex:function(){return this._lastMeasuredIndex},getSizeAndPositionOfCell:function(a){if(!(a<0||a>=this._cellCount)){if(a>this._lastMeasuredIndex){for(var b=this.getSizeAndPositionOfLastMeasuredCell(),c=b.offset+b.size,d=this._lastMeasuredIndex+1;d<=a;d++){var e=this._cellSizeGetter(d);null==e||isNaN(e)||(this._cellSizeAndPositionData[d]={offset:c,size:e},c+=e)}this._lastMeasuredIndex=a}return this._cellSizeAndPositionData[a]}},getSizeAndPositionOfLastMeasuredCell:function(){return this._lastMeasuredIndex>=0?this._cellSizeAndPositionData[this._lastMeasuredIndex]:{offset:0,size:0}},getTotalSize:function(){var a=this.getSizeAndPositionOfLastMeasuredCell();return a.offset+a.size+(this._cellCount-this._lastMeasuredIndex-1)*this._estimatedCellSize},getUpdatedOffsetForIndex:function(a,b,c,d){var e,f=this.getSizeAndPositionOfCell(d),g=f.offset,h=g-b+f.size;switch(a){case"start":e=g;break;case"end":e=h;break;case"center":e=g-(b-f.size)/2;break;default:e=Math.max(h,Math.min(g,c))}var i=this.getTotalSize();return Math.max(0,Math.min(i-b,e))},getVisibleCellRange:function(a,b){var c=this.getTotalSize();if(0===c)return{};var d=b+a,e=this._findNearestCell(b),f=this.getSizeAndPositionOfCell(e);b=f.offset+f.size;for(var g=e;bc&&(a=d-1)}if(b>0)return b-1},_exponentialSearch:function(a,b){for(var c=1;a=a?this._binarySearch(c,0,a):this._exponentialSearch(c,a)}}},BI.ScalingCellSizeAndPositionManager=function(a,b,c,d){this._cellSizeAndPositionManager=new BI.CellSizeAndPositionManager(a,b,c),this._maxScrollSize=d||1e7},BI.ScalingCellSizeAndPositionManager.prototype={constructor:BI.ScalingCellSizeAndPositionManager,configure:function(){this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager,arguments)},getCellCount:function(){return this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDO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this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDOMZBLZWPDWYYGDSTTHCSQSCCRSSSYSLFYBFNTYJSZDFNDPDHDZZMBBLSLCMYFFGTJJQWFTMTPJWFNLBZCMMJTGBDZLQLPYFHYYMJYLSDCHDZJWJCCTLJCLDTLJJCPDDSQDSSZYBNDBJLGGJZXSXNLYCYBJXQYCBYLZCFZPPGKCXZDZFZTJJFJSJXZBNZYJQTTYJYHTYCZHYMDJXTTMPXSPLZCDWSLSHXYPZGTFMLCJTYCBPMGDKWYCYZCDSZZYHFLYCTYGWHKJYYLSJCXGYWJCBLLCSNDDBTZBSCLYZCZZSSQDLLMQYYHFSLQLLXFTYHABXGWNYWYYPLLSDLDLLBJCYXJZMLHLJDXYYQYTDLLLBUGBFDFBBQJZZMDPJHGCLGMJJPGAEHHBWCQXAXHHHZCHXYPHJAXHLPHJPGPZJQCQZGJJZZUZDMQYYBZZPHYHYBWHAZYJHYKFGDPFQSDLZMLJXKXGALXZDAGLMDGXMWZQYXXDXXPFDMMSSYMPFMDMMKXKSYZYSHDZKXSYSMMZZZMSYDNZZCZXFPLSTMZDNMXCKJMZTYYMZMZZMSXHHDCZJEMXXKLJSTLWLSQLYJZLLZJSSDPPMHNLZJCZYHMXXHGZCJMDHXTKGRMXFWMCGMWKDTKSXQMMMFZZYDKMSCLCMPCGMHSPXQPZDSSLCXKYXTWLWJYAHZJGZQMCSNXYYMMPMLKJXMHLMLQMXCTKZMJQYSZJSYSZHSYJZJCDAJZYBSDQJZGWZQQXFKDMSDJLFWEHKZQKJPEYPZYSZCDWYJFFMZZYLTTDZZEFMZLBNPPLPLPEPSZALLTYLKCKQZKGENQLWAGYXYDPXLHSXQQWQCQXQCLHYXXMLYCCWLYMQYSKGCHLCJNSZKPYZKCQZQLJPDMDZHLASXLBYDWQLWDNBQCRYDDZTJYBKBWSZDXDTNPJDTCTQDFXQQMGNXECLTTBKPWSLCTYQLPWYZZKLPYGZCQQPLLKCCYLPQMZCZQCLJSLQZDJXLDDHPZQDLJJXZQDXYZQKZLJCYQDYJPPYPQYKJYRMPCBYMCXKLLZLLFQPYLLLMBSGLCYSSLRSYSQTMXYXZQZFDZUYSYZTFFMZZSMZQHZSSCCMLYXWTPZGXZJGZGSJSGKDDHTQGGZLLBJDZLCBCHYXYZHZFYWXYZYMSDBZZYJGTSMTFXQYXQSTDGSLNXDLRYZZLRYYLXQHTXSRTZNGZXBNQQZFMYKMZJBZYMKBPNLYZPBLMCNQYZZZSJZHJCTZKHYZZJRDYZHNPXGLFZTLKGJTCTSSYLLGZRZBBQZZKLPKLCZYSSUYXBJFPNJZZXCDWXZYJXZZDJJKGGRSRJKMSMZJLSJYWQSKYHQJSXPJZZZLSNSHRNYPZTWCHKLPSRZLZXYJQXQKYSJYCZTLQZYBBYBWZPQDWWYZCYTJCJXCKCWDKKZXSGKDZXWWYYJQYYTCYTDLLXWKCZKKLCCLZCQQDZLQLCSFQCHQHSFSMQZZLNBJJZBSJHTSZDYSJQJPDLZCDCWJKJZZLPYCGMZWDJJBSJQZSYZYHHXJPBJYDSSXDZNCGLQMBTSFSBPDZDLZNFGFJGFSMPXJQLMBLGQCYYXBQKDJJQYRFKZTJDHCZKLBSDZCFJTPLLJGXHYXZCSSZZXSTJYGKGCKGYOQXJPLZPBPGTGYJZGHZQZZLBJLSQFZGKQQJZGYCZBZQTLDXRJXBSXXPZXHYZYCLWDXJJHXMFDZPFZHQHQMQGKSLYHTYCGFRZGNQXCLPDLBZCSCZQLLJBLHBZCYPZZPPDYMZZSGYHCKCPZJGSLJLNSCDSLDLXBMSTLDDFJMKDJDHZLZXLSZQPQPGJLLYBDSZGQLBZLSLKYYHZTTNTJYQTZZPSZQZTLLJTYYLLQLLQYZQLBDZLSLYYZYMDFSZSNHLXZNCZQZPBWSKRFBSYZMTHBLGJPMCZZLSTLXSHTCSYZLZBLFEQHLXFLCJLYLJQCBZLZJHHSSTBRMHXZHJZCLXFNBGXGTQJCZTMSFZKJMSSNXLJKBHSJXNTNLZDNTLMSJXGZJYJCZXYJYJWRWWQNZTNFJSZPZSHZJFYRDJSFSZJZBJFZQZZHZLXFYSBZQLZSGYFTZDCSZXZJBQMSZKJRHYJZCKMJKHCHGTXKXQGLXPXFXTRTYLXJXHDTSJXHJZJXZWZLCQSBTXWXGXTXXHXFTSDKFJHZYJFJXRZSDLLLTQSQQZQWZXSYQTWGWBZCGZLLYZBCLMQQTZHZXZXLJFRMYZFLXYSQXXJKXRMQDZDMMYYBSQBHGZMWFWXGMXLZPYYTGZYCCDXYZXYWGSYJYZNBHPZJSQSYXSXRTFYZGRHZTXSZZTHCBFCLSYXZLZQMZLMPLMXZJXSFLBYZMYQHXJSXRXSQZZZSSLYFRCZJRCRXHHZXQYDYHXSJJHZCXZBTYNSYSXJBQLPXZQPYMLXZKYXLXCJLCYSXXZZLXDLLLJJYHZXGYJWKJRWYHCPSGNRZLFZWFZZNSXGXFLZSXZZZBFCSYJDBRJKRDHHGXJLJJTGXJXXSTJTJXLYXQFCSGSWMSBCTLQZZWLZZKXJMLTMJYHSDDBXGZHDLBMYJFRZFSGCLYJBPMLYSMSXLSZJQQHJZFXGFQFQBPXZGYYQXGZTCQWYLTLGWSGWHRLFSFGZJMGMGBGTJFSYZZGZYZAFLSSPMLPFLCWBJZCLJJMZLPJJLYMQDMYYYFBGYGYZMLYZDXQYXRQQQHSYYYQXYLJTYXFSFSLLGNQCYHYCWFHCCCFXPYLYPLLZYXXXXXKQHHXSHJZCFZSCZJXCPZWHHHHHAPYLQALPQAFYHXDYLUKMZQGGGDDESRNNZLTZGCHYPPYSQJJHCLLJTOLNJPZLJLHYMHEYDYDSQYCDDHGZUNDZCLZYZLLZNTNYZGSLHSLPJJBDGWXPCDUTJCKLKCLWKLLCASSTKZZDNQNTTLYYZSSYSSZZRYLJQKCQDHHCRXRZYDGRGCWCGZQFFFPPJFZYNAKRGYWYQPQXXFKJTSZZXSWZDDFBBXTBGTZKZNPZZPZXZPJSZBMQHKCYXYLDKLJNYPKYGHGDZJXXEAHPNZKZTZCMXCXMMJXNKSZQNMNLWBWWXJKYHCPSTMCSQTZJYXTPCTPDTNNPGLLLZSJLSPBLPLQHDTNJNLYYRSZFFJFQWDPHZDWMRZCCLODAXNSSNYZRESTYJWJYJDBCFXNMWTTBYLWSTSZGYBLJPXGLBOCLHPCBJLTMXZLJYLZXCLTPNCLCKXTPZJSWCYXSFYSZDKNTLBYJCYJLLSTGQCBXRYZXBXKLYLHZLQZLNZCXWJZLJZJNCJHXMNZZGJZZXTZJXYCYYCXXJYYXJJXSSSJSTSSTTPPGQTCSXWZDCSYFPTFBFHFBBLZJCLZZDBXGCXLQPXKFZFLSYLTUWBMQJHSZBMDDBCYSCCLDXYCDDQLYJJWMQLLCSGLJJSYFPYYCCYLTJANTJJPWYCMMGQYYSXDXQMZHSZXPFTWWZQSWQRFKJLZJQQYFBRXJHHFWJJZYQAZMYFRHCYYBYQWLPEXCCZSTYRLTTDMQLYKMBBGMYYJPRKZNPBSXYXBHYZDJDNGHPMFSGMWFZMFQMMBCMZZCJJLCNUXYQLMLRYGQZCYXZLWJGCJCGGMCJNFYZZJHYCPRRCMTZQZXHFQGTJXCCJEAQCRJYHPLQLSZDJRBCQHQDYRHYLYXJSYMHZYDWLDFRYHBPYDTSSCNWBXGLPZMLZZTQSSCPJMXXYCSJYTYCGHYCJWYRXXLFEMWJNMKLLSWTXHYYYNCMMCWJDQDJZGLLJWJRKHPZGGFLCCSCZMCBLTBHBQJXQDSPDJZZGHGLFQYWBZYZJLTSTDHQHCTCBCHFLQMPWDSHYYTQWCNZZJTLBYMBPDYYYXSQKXWYYFLXXNCWCXYPMAELYKKJMZZZBRXYYQJFLJPFHHHYTZZXSGQQMHSPGDZQWBWPJHZJDYSCQWZKTXXSQLZYYMYSDZGRXCKKUJLWPYSYSCSYZLRMLQSYLJXBCXTLWDQZPCYCYKPPPNSXFYZJJRCEMHSZMSXLXGLRWGCSTLRSXBZGBZGZTCPLUJLSLYLYMTXMTZPALZXPXJTJWTCYYZLBLXBZLQMYLXPGHDSLSSDMXMBDZZSXWHAMLCZCPJMCNHJYSNSYGCHSKQMZZQDLLKABLWJXSFMOCDXJRRLYQZKJMYBYQLYHETFJZFRFKSRYXFJTWDSXXSYSQJYSLYXWJHSNLXYYXHBHAWHHJZXWMYLJCSSLKYDZTXBZSYFDXGXZJKHSXXYBSSXDPYNZWRPTQZCZENYGCXQFJYKJBZMLJCMQQXUOXSLYXXLYLLJDZBTYMHPFSTTQQWLHOKYBLZZALZXQLHZWRRQHLSTMYPYXJJXMQSJFNBXYXYJXXYQYLTHYLQYFMLKLJTMLLHSZWKZHLJMLHLJKLJSTLQXYLMBHHLNLZXQJHXCFXXLHYHJJGBYZZKBXSCQDJQDSUJZYYHZHHMGSXCSYMXFEBCQWWRBPYYJQTYZCYQYQQZYHMWFFHGZFRJFCDPXNTQYZPDYKHJLFRZXPPXZDBBGZQSTLGDGYLCQMLCHHMFYWLZYXKJLYPQHSYWMQQGQZMLZJNSQXJQSYJYCBEHSXFSZPXZWFLLBCYYJDYTDTHWZSFJMQQYJLMQXXLLDTTKHHYBFPWTYYSQQWNQWLGWDEBZWCMYGCULKJXTMXMYJSXHYBRWFYMWFRXYQMXYSZTZZTFYKMLDHQDXWYYNLCRYJBLPSXCXYWLSPRRJWXHQYPHTYDNXHHMMYWYTZCSQMTSSCCDALWZTCPQPYJLLQZYJSWXMZZMMYLMXCLMXCZMXMZSQTZPPQQBLPGXQZHFLJJHYTJSRXWZXSCCDLXTYJDCQJXSLQYCLZXLZZXMXQRJMHRHZJBHMFLJLMLCLQNLDXZLLLPYPSYJYSXCQQDCMQJZZXHNPNXZMEKMXHYKYQLXSXTXJYYHWDCWDZHQYYBGYBCYSCFGPSJNZDYZZJZXRZRQJJYMCANYRJTLDPPYZBSTJK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BI.first(this.children)},getLastChild:function(){return BI.last(this.children)},setLeft:function(a){this.left=a},getLeft:function(){return this.left},setRight:function(a){this.right=a},getRight:function(){return this.right},setParent:function(a){this.parent=a},getParent:function(){return this.parent},getChild:function(a){return this.children[a]},getChildIndex:function(a){return BI.findIndex(this.children,function(b,c){return c.get("id")===a})},removeChild:function(a){this.removeChildByIndex(this.getChildIndex(a))},removeChildByIndex:function(a){var b=this.getChild(a-1),c=this.getChild(a+1);null!=b&&b.setRight(c||null),null!=c&&c.setLeft(b||null),this.children.splice(a,1)},removeAllChilds:function(){this.children=[]},addChild:function(a,b){var c=null;c=BI.isUndefined(b)?this.children.length-1:b-1,a.setParent(this),c>=0&&(this.getChild(c)&&this.getChild(c).setRight(a),a.setLeft(this.getChild(c))),BI.isUndefined(b)?this.children.push(a):this.children.splice(b,0,a)},equals:function(a){return this===a||this.id===a.id},clear:function(){this.parent=null,this.left=null,this.right=null,this.children=[]}},BI.extend(BI.Tree,{transformToArrayFormat:function(a,b){if(!a)return[];var c=[];if(BI.isArray(a))for(var d=0,e=a.length;d=this.x&&a<=this.x+this.w&&b>=this.y&&b<=this.y+this.h)},getPosition:function(){var a=[];return a.push(this.x+this.w/2),a.push(this.y+this.h/2),a}},BI.BehaviorFactory={createBehavior:function(a,b){var c;switch(a){case"highlight":c=BI.HighlightBehavior;break;case"redmark":c=BI.RedMarkBehavior}return new c(b)}},BI.Behavior=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.Behavior.superclass._defaultConfig.apply(this,arguments),{rule:function(){return!0}})},_init:function(){BI.Behavior.superclass._init.apply(this,arguments)},doBehavior:function(){}}),BI.Layout=BI.inherit(BI.Widget,{props:function(){return{scrollable:null,scrollx:!1,scrolly:!1,items:[]}},render:function(){this._init4Margin(),this._init4Scroll()},_init4Margin:function(){this.options.top&&this.element.css("top",this.options.top),this.options.left&&this.element.css("left",this.options.left),this.options.bottom&&this.element.css("bottom",this.options.bottom),this.options.right&&this.element.css("right",this.options.right)},_init4Scroll:function(){switch(this.options.scrollable){case!0:this.element.css("overflow","auto");break;case!1:this.element.css("overflow","hidden")}this.options.scrollx&&this.element.css({"overflow-x":"auto","overflow-y":"hidden"}),this.options.scrolly&&this.element.css({"overflow-x":"hidden","overflow-y":"auto"})},appendFragment:function(a){this.element.append(a)},_mountChildren:function(){var a=this,b=BI.Widget._renderEngine.createFragment(),c=!1;BI.each(this._children,function(d,e){e.element!==a.element&&(b.appendChild(e.element[0]),c=!0)}),c===!0&&this.appendFragment(b)},_getChildName:function(a){return a+""},_addElement:function(a,b){var c,d=this;return this.hasWidget(this._getChildName(a))?c=this.getWidgetByName(this._getChildName(a)):(c=BI.createWidget(b),c.on(BI.Events.DESTROY,function(){BI.each(d._children,function(a,b){b===c&&(BI.remove(d._children,b),d.removeItemAt(0|a))})}),this.addWidget(this._getChildName(a),c)),c},_getOptions:function(a){return a instanceof BI.Widget&&(a=a.options),a=BI.stripEL(a),a instanceof BI.Widget&&(a=a.options),a},_compare:function(a,b){function c(a,b,e,f){if(a===b)return 0!==a||1/a===1/b;if(null==a||null==b)return a===b;var g=Object.prototype.toString.call(a);switch(g){case"[object RegExp]":case"[object String]":return""+a==""+b;case"[object Number]":return+a!==+a?+b!==+b:0===+a?1/+a===1/b:+a===+b;case"[object Date]":case"[object 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a>0?this._children[this._getChildName(a-1)].element.after(c.element):c.element.prependTo(this._getWrapper()),c._mount(),c}},removeItemAt:function(a){a=BI.isArray(a)?a:[a];for(var b=[],c=[],d={},e=0,f=this.options.items.length;ethis.options.items.length-1)return!1;var c=this._children[this._getChildName(a)];return c.shouldUpdate?c.shouldUpdate(this._getOptions(b))===!0:null},updateItemAt:function(a,b){if(!(a<0||a>this.options.items.length-1)){var c,d=this._children[this._getChildName(a)];if(c=d.update(this._getOptions(b)))return c;var e=this._children[this._getChildName(a)];delete this._children[this._getChildName(a)],this.options.items.splice(a,1);var f=this._addElement(a,b);this.options.items.splice(a,0,b),this._children[this._getChildName(a)]=f,a>0?this._children[this._getChildName(a-1)].element.after(f.element):f.element.prependTo(this._getWrapper()),e._destroy(),f._mount()}},addItems:function(a){var b=this,c=this.options,d=BI.Widget._renderEngine.createFragment(),e=[];BI.each(a,function(a,f){var g=b._addElement(c.items.length,f);b._children[b._getChildName(c.items.length)]=g,c.items.push(f),e.push(g),d.appendChild(g.element[0])}),this._isMounted&&(this._getWrapper().append(d),BI.each(e,function(a,b){b._mount()}))},prependItems:function(a){var b=this;a=a||[];for(var c=BI.Widget._renderEngine.createFragment(),d=[],e=a.length-1;e>=0;e--){this._addItemAt(0,a[e]);var f=this._addElement(0,a[e]);b._children[b._getChildName(0)]=f,this.options.items.unshift(a[e]),d.push(f),c.appendChild(f.element[0])}this._isMounted&&(this._getWrapper().prepend(c),BI.each(d,function(a,b){b._mount()}))},getValue:function(){var a,b=this,c=[];return BI.each(this.options.items,function(d){if(a=b._children[b._getChildName(d)]){var e=a.getValue();e=BI.isArray(e)?e:[e],c=c.concat(e)}}),c},setValue:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setValue(a)})},setText:function(a){var b,c=this;BI.each(this.options.items,function(d){(b=c._children[c._getChildName(d)])&&b.setText(a)})},patchItem:function(a,b,c){var d=this.shouldUpdateItem(c,b);if(d===!0||null===d&&!this._compare(a,b))return this.updateItemAt(c,b)},updateChildren:function(a,b){function c(a,b,c,d){return a=j._getOptions(a),b=j._getOptions(b),BI.isKey(a.key)?a.key===b.key:c>=0?c===d:void 0}function d(a,b){var c=j._getOptions(a),d=null==c.key?j._getChildName(b):c.key;return s[d]=j._addElement(d,a)}function e(a,b,c,e){for(;c<=e;++c){var f=d(b[c],c);g(f,a,!1,c)}}function f(a,b,c){for(;b<=c;++b){var d=j._getOptions(a[b]),e=null==d.key?j._getChildName(b):d.key;s[e]._destroy()}}function g(a,b,c,d){a=j._getOptions(a),b=b&&j._getOptions(b);var e=BI.isKey(a.key)?a.key:j._getChildName(d);if(b&&s[b.key]){var f,g=BI.isKey(b.key)?b.key:j._getChildName(d);f=c?s[g].element.next():s[g].element,f.length>0?f.before(s[e].element):j._getWrapper().append(s[e].element)}else j._getWrapper().append(s[e].element)}var h,i,j=this,k=0,l=0,m=a.length-1,n=a[0],o=a[m],p=b.length-1,q=b[0],r=b[p],s={};for(BI.each(a,function(a,b){b=j._getOptions(b);var c=null==b.key?a:b.key;BI.isKey(c)&&(s[c]=j._children[j._getChildName(a)])});k<=m&&l<=p;)if(BI.isNull(n))n=a[++k];else if(BI.isNull(o))o=a[--m];else if(c(n,q,k,l))i=this.patchItem(n,q,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],n=a[++k],q=b[++l];else if(c(o,r,m,p))i=this.patchItem(o,r,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],o=a[--m],r=b[--p];else if(c(n,r))i=this.patchItem(n,r,k)||i,s[null==n.key?this._getChildName(k):n.key]=this._children[this._getChildName(k)],g(n,o,!0),n=a[++k],r=b[--p];else if(c(o,q))i=this.patchItem(o,q,m)||i,s[null==o.key?this._getChildName(m):o.key]=this._children[this._getChildName(m)],g(o,n),o=a[--m],q=b[++l];else{var t=d(q);g(t,n),q=b[++l]}return k>m?(h=BI.isNull(b[p+1])?null:b[p+1],e(h,b,l,p)):l>p&&f(a,k,m),this._children={},BI.each(b,function(a,b){var c=j._getOptions(b),d=null==c.key?j._getChildName(a):c.key;s[d]._mount(),j._children[j._getChildName(a)]=s[d]}),i},update:function(a){var b=this.options,c=a.items||[],d=this.updateChildren(b.items,c);return this.options.items=c,d},stroke:function(a){var b=this;BI.each(a,function(a,c){c&&b._addElement(a,c)})},removeWidget:function(a){var b;BI.isWidget(a)?BI.each(this._children,function(c,d){d===a&&(b=c)}):b=a,b&&this._removeItemAt(0|b)},empty:function(){BI.Layout.superclass.empty.apply(this,arguments),this.options.items=[]},destroy:function(){BI.Layout.superclass.destroy.apply(this,arguments),this.options.items=[]},populate:function(a){this.options;return a=a||[],this._isMounted?void 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BI.extend(BI.Action.superclass._defaultConfig.apply(this,arguments),{src:null,tar:null})},_init:function(){BI.Action.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){}, actionBack:function(a,b,c){}}),BI.ActionFactory={createAction:function(a,b){var c;switch(a){case"show":c=BI.ShowAction}return new c(b)}},BI.ShowAction=BI.inherit(BI.Action,{_defaultConfig:function(){return BI.extend(BI.ShowAction.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.ShowAction.superclass._init.apply(this,arguments)},actionPerformed:function(a,b,c){b=b||this.options.tar,b.setVisible(!0),c&&c()},actionBack:function(a,b,c){a=a||this.options.tar,a.setVisible(!1),c&&c()}}),function(){function isEmpty(a){var b=""===a||null===a||void 0===a;return b}function isInvalidDate(a){return"Invalid Date"==a||"NaN"==a}function _eFormat(a,b){function c(a,b){var c=a<0?(a*=-1,"-"):"",h="",i=a>0&&a<1?"floor":"ceil",j=Math[i](Math.log(a)/Math.log(10));if(!isFinite(j))return 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self?self:this,_global.BI||(_global.BI={}),BI.cjkEncode=function(a){if("string"!=typeof a)return a;for(var b="",c=0;c=128||91===d||93===d?"["+d.toString(16)+"]":a.charAt(c)}return b},BI.cjkDecode=function(text){if(null==text)return"";if(!isNaN(text)||text.indexOf("[")==-1)return text;for(var newText="",i=0;ii+1){var subText=text.substring(i+1,rightIdx);subText.length>0&&(ch=String.fromCharCode(eval("0x"+subText))),i=rightIdx}}newText+=ch}return newText},BI.htmlEncode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/\"/g,""").replace(//g,">").replace(/\s/g," ")},BI.htmlDecode=function(a){return null==a?"":String(a).replace(/&/g,"&").replace(/"/g,'"').replace(/</g,"<").replace(/>/g,">").replace(/ /g," ")},BI.cjkEncodeDO=function(a){if(BI.isPlainObject(a)){var b={};return _.each(a,function(a,c){"string"!=typeof a&&(a=BI.jsonEncode(a)),c=BI.cjkEncode(c),b[c]=BI.cjkEncode(a)}),b}return a},BI.jsonEncode=function(a){var b=!!{}.hasOwnProperty,c={"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},d=function(a){return/["\\\x00-\x1f]/.test(a)?'"'+a.replace(/([\x00-\x1f\\"])/g,function(a,b){var d=c[b];return d?d:(d=b.charCodeAt(),"\\u00"+Math.floor(d/16).toString(16)+(d%16).toString(16))})+'"':'"'+a+'"'},e=function(a){var b,c,d,e=["["],f=a.length;for(c=0;c2?BI.Date._MN[b.getMonth()]:d<2?b.getMonth()+1:BI.leftPad(b.getMonth()+1+"",2,"0");break;case"d":c=d>1?BI.leftPad(b.getDate()+"",2,"0"):b.getDate();break;case"h":var f=b.getHours()%12;0===f&&(f=12),c=d>1?BI.leftPad(f+"",2,"0"):f;break;case"H":c=d>1?BI.leftPad(b.getHours()+"",2,"0"):b.getHours();break;case"m":c=d>1?BI.leftPad(b.getMinutes()+"",2,"0"):b.getMinutes();break;case"s":c=d>1?BI.leftPad(b.getSeconds()+"",2,"0"):b.getSeconds();break;case"a":c=b.getHours()<12?"am":"pm";break;case"z":c=BI.getTimezone(b);break;default:c=a.str}return c}if(!a)return"";var d=b.length,e="";if(d>0){for(var f=b.charAt(0),g=0,h=f,i=1;iBI.Widget._renderEngine.createElement("body").outerWidth()&&(l-=k.element.outerWidth()+15),m+k.element.outerHeight()>BI.Widget._renderEngine.createElement("body").outerHeight()?(m-=k.element.outerHeight()+15,!f.belowMouse&&(m=Math.min(m,h.top-k.element.outerHeight()-5))):!f.belowMouse&&(m=Math.max(m,j)),k.element.css({left:l<0?0:l+"px",top:m<0?0:m+"px"}),k.element.hover(function(){g.remove(b),e.element.trigger("mouseleave.title"+e.getName())}),this},add:function(a,b){return this.has(a)?this:(this.set(a,b),this)},get:function(a){return this.tooltipsManager[a]},set:function(a,b){this.tooltipsManager[a]=b},has:function(a){return null!=this.tooltipsManager[a]},remove:function(a){return this.has(a)?(this.tooltipsManager[a].destroy(),delete this.tooltipsManager[a],this):this}}),_.extend(BI,{Events:{KEYDOWN:"_KEYDOWN",BACKSPACE:"_BACKSPACE",SPACE:"_SPACE",ENTER:"_ENTER",CONFIRM:"_CONFIRM",ERROR:"_ERROR",PAUSE:"_PAUSE",DESTROY:"_DESTROY",UNMOUNT:"_UNMOUNT",CLEAR:"_CLEAR",ADD:"_ADD",EDITING:"_EDITING",EMPTY:"_EMPTY",VIEW:"_VIEW",RESIZE:"_RESIZE",BEFOREEDIT:"_BEFOREEDIT",AFTEREDIT:"_AFTEREDIT",STARTEDIT:"_STARTEDIT",STOPEDIT:"_STOPEDIT",CHANGE:"_CHANGE",EXPAND:"_EXPAND",COLLAPSE:"_COLLAPSE",CALLBACK:"_CALLBACK",CLICK:"_CLICK",STATECHANGE:"_STATECHANGE",BEFORESTATECHANGE:"_BEFORESTATECHANGE",INIT:"_INIT",AFTERINIT:"_AFTERINIT",SCROLL:"_SCROLL",STARTLOAD:"_STARTLOAD",AFTERLOAD:"_AFTERLOAD",BS:"beforesubmit",AS:"aftersubmit",SC:"submitcomplete",SF:"submitfailure",SS:"submitsuccess",BVW:"beforeverifywrite",AVW:"afterverifywrite",AV:"afterverify",BW:"beforewrite",AW:"afterwrite",WS:"writesuccess",WF:"writefailure",BA:"beforeappend",AA:"afterappend",BD:"beforedelete",AD:"beforedelete",UC:"unloadcheck",BTOPDF:"beforetopdf",ATOPDF:"aftertopdf",BTOEXCEL:"beforetoexcel",ATOEXCEL:"aftertoexcel",BTOWORD:"beforetoword",ATOWORD:"aftertoword",BTOIMAGE:"beforetoimage",ATOIMAGE:"aftertoimage",BTOHTML:"beforetohtml",ATOHTML:"aftertohtml",BIMEXCEL:"beforeimportexcel",AIMEXCEL:"afterimportexcel",BPDFPRINT:"beforepdfprint",APDFPRINT:"afterpdfprint",BFLASHPRINT:"beforeflashprint",AFLASHPRINT:"afterflashprint",BAPPLETPRINT:"beforeappletprint",AAPPLETPRINT:"afterappletprint",BSEVERPRINT:"beforeserverprint",ASERVERPRINT:"afterserverprint",BEMAIL:"beforeemail",AEMAIL:"afteremail"}}),_.extend(BI,{pushArray:function(a,b){for(var c=0;ce&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+3*parseInt(b)),c},getQuarterStartMonth:function(a){var b=0,c=a.getMonth();return c<3&&(b=0),28&&(b=9),b},getQuarterStartDate:function(a){return BI.getDate(a.getFullYear(),BI.getQuarterStartMonth(a),1)},getQuarterEndDate:function(a){var b=BI.getQuarterStartMonth(a)+2;return BI.getDate(a.getFullYear(),b,BI.getMonthDays(a,b))},getOffsetMonth:function(a,b){var c=BI.getDate(BI.getTime(a.getFullYear(),a.getMonth(),a.getDate(),a.getHours(),a.getMinutes(),a.getSeconds())),d=c.getDate(),e=BI.getMonthDays(BI.getDate(c.getFullYear(),c.getMonth()+parseInt(b),1));return d>e&&(d=e),c.setDate(d),c.setMonth(c.getMonth()+parseInt(b)),c},getWeekStartDate:function(a){var b=a.getDay(),c=BI.StartOfWeek%7;return BI.getOffsetDate(a,BI.Date._OFFSET[b=12,m=l?k-12:k,n=BI.getDayOfYear(a);0==m&&(m=12);var 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g={},h=[];BI.action=function(a,b){return BI.isFunction(a)?(h.push(a),function(){BI.remove(h,function(a){return h.indexOf(b)===a})}):(g[a]||(g[a]=[]),g[a].push(b),function(){BI.remove(g[a],function(c){return g[a].indexOf(b)===c}),0===g[a].length&&delete g[a]})};var i={};BI.point=function(a,b,c,d){i[a]||(i[a]={}),i[a][b]||(i[a][b]={}),i[a][b][d?"after":"before"]||(i[a][b][d?"after":"before"]=[]),i[a][b][d?"after":"before"].push(c)},BI.Modules={getModule:function(b){return a[b]?a[b]:(_global.console&&console.error("module:["+b+"] does not exists"),!1)}},BI.Constants={getConstant:function(a){return b[a]}};var j=function(a,b){if(i[b])for(var c in i[b]){var d=i[b][c].before;d&&BI.aspect.before(a,c,function(b){return function(){for(var c=0,d=b.length;c1?d.toString():d[0]:d,BI.isNull(d))throw new Error("value cannot be null");var f=b.cardNameCreator(d);if(!b.cardLayout.isCardExisted(f)){var g=b.cardCreator(f);b.cardLayout.addCardByName(f,g),b.afterCardCreated(f)}b.cardLayout.showCardByName(f),BI.nextTick(function(){b.afterCardShow(f),a.fireEvent(BI.ShowListener.EVENT_CHANGE,f)})}})}}),BI.ShowListener.EVENT_CHANGE="ShowListener.EVENT_CHANGE",BI.StyleLoaderManager=BI.inherit(BI.OB,{_defaultConfig:function(){return BI.extend(BI.StyleLoaderManager.superclass._defaultConfig.apply(this,arguments),{})},_init:function(){BI.StyleLoaderManager.superclass._init.apply(this,arguments),this.stylesManager={}},loadStyle:function(a,b){if(_global.document){var c=document,d=c.createElement("style");return c.getElementsByTagName("head")[0].appendChild(d),d.setAttribute("type","text/css"),d.styleSheet?d.styleSheet.cssText=b:d.appendChild(document.createTextNode(b)),this.stylesManager[a]=d,this}},get:function(a){return this.stylesManager[a]},has:function(a){return null!=this.stylesManager[a]},removeStyle:function(a){return this.has(a)?(this.stylesManager[a].parentNode.removeChild(this.stylesManager[a]),delete this.stylesManager[a],this):this}}),BI.Logic=BI.inherit(BI.OB,{createLogic:function(){return this.options||{}}}),BI.LogicFactory={Type:{Vertical:"vertical",Horizontal:"horizontal",Table:"table",HorizontalFill:"horizontal_fill"},createLogic:function(a,b){var c;switch(a){case BI.LogicFactory.Type.Vertical:c=BI.VerticalLayoutLogic;break;case BI.LogicFactory.Type.Horizontal:c=BI.HorizontalLayoutLogic;break;case BI.LogicFactory.Type.Table:c=BI.TableLayoutLogic;break;case BI.LogicFactory.Type.HorizontalFill:c=BI.HorizontalFillLayoutLogic;break;default:c=BI.Logic}return new c(b).createLogic()},createLogicTypeByDirection:function(a){switch(a){case BI.Direction.Top:case BI.Direction.Bottom:case BI.Direction.Custom:return BI.LogicFactory.Type.Vertical;case BI.Direction.Left:case BI.Direction.Right:return BI.LogicFactory.Type.Horizontal}},createLogicItemsByDirection:function(a){var b,c=Array.prototype.slice.call(arguments,1);switch(c=BI.map(c,function(a,b){return BI.isWidget(b)?{el:b,width:b.options.width,height:b.options.height}:b}),a){case BI.Direction.Bottom:b=BI.LogicFactory.Type.Vertical,c.reverse();break;case BI.Direction.Right:b=BI.LogicFactory.Type.Horizontal,c.reverse();break;case BI.Direction.Custom:c=c.slice(1)}return c}},BI.VerticalLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.VerticalLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options;return 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BI.extend(BI.TableLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,columns:0,rows:0,columnSize:[],rowSize:[],hgap:0,vgap:0,items:[]})},createLogic:function(){var a,b=this.options;return a=b.dynamic?"bi.table":"bi.window",{type:a,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,columns:b.columns,rows:b.rows,columnSize:b.columnSize,rowSize:b.rowSize,hgap:b.hgap,vgap:b.vgap,items:b.items}},_init:function(){BI.TableLayoutLogic.superclass._init.apply(this,arguments)}}),BI.HorizontalFillLayoutLogic=BI.inherit(BI.Logic,{_defaultConfig:function(){return BI.extend(BI.HorizontalFillLayoutLogic.superclass._defaultConfig.apply(this,arguments),{dynamic:!1,scrollable:null,scrolly:!1,scrollx:!1,items:[],hgap:0,vgap:0,lgap:0,rgap:0,tgap:0,bgap:0})},createLogic:function(){var a,b=this.options,c=[];return BI.each(b.items,function(a,b){c.push(b.width||0)}),a=b.dynamic?"bi.horizontal_adapt":"bi.htape",{type:a,columnSize:c,scrollable:b.scrollable,scrolly:b.scrolly,scrollx:b.scrollx,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,items:b.items}},_init:function(){BI.HorizontalFillLayoutLogic.superclass._init.apply(this,arguments)}}),_.extend(BI,{ajax:function(a){a||(a={});var b=a.async;a.data=BI.cjkEncodeDO(a.data||{}),$.ajax({url:a.url,type:"POST",data:a.data,async:b,error:a.error,complete:function(b,c){BI.isFunction(a.complete)&&a.complete(BI.jsonDecode(b.responseText),c)}})}}),BI.prepares.push(function(){var a,b=function(){return null==a&&(a=!(!BI.isSupportCss3||!BI.isSupportCss3("flex"))),a};BI.Plugin.registerWidget("bi.horizontal",function(a){var c=BI.isIE(),d=b(),e=c&&BI.getIEVersion()<8;return a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Middle&&a.horizontalAlign===BI.HorizontalAlign.Left?e?a:BI.extend(a,{type:"bi.table_adapt"}):a.verticalAlign===BI.VerticalAlign.Top&&a.horizontalAlign===BI.HorizontalAlign.Center?e?a:BI.extend(a,{type:"bi.table_adapt"}):c?a:d?BI.extend(a,{type:"bi.flex_horizontal"}):BI.extend(a,{type:"bi.table_adapt"})}),BI.Plugin.registerWidget("bi.center_adapt",function(a){var c=BI.isIE(),d=b(),e=a.items&&a.items.length<=1;return!c&&d&&e?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend(a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):e?BI.extend(a,{type:"bi.inline_center_adapt"}):a}),BI.Plugin.registerWidget("bi.vertical_adapt",function(a){var c=BI.isIE(),d=b();return!c&&d?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_vertical_center"}):BI.extend(a,{type:"bi.flex_vertical_center"}):BI.extend(a,{type:"bi.inline_vertical_adapt"})}),BI.Plugin.registerWidget("bi.horizontal_adapt",function(a){return a.items&&a.items.length<=1?BI.extend(a,{type:"bi.horizontal_auto"}):a}),BI.Plugin.registerWidget("bi.float_center_adapt",function(a){return!BI.isIE()&&b()?a.scrollable===!0||a.scrollx===!0||a.scrolly===!0?BI.extend({},a,{type:"bi.flex_wrapper_center"}):BI.extend(a,{type:"bi.flex_center"}):BI.extend(a,{type:"bi.inline_center_adapt"})})}),!function(){var a=_global.document&&_global.document.attachEvent,b=!1;if(_global.document&&!a){var c=function(){var a=_global.requestAnimationFrame||_global.mozRequestAnimationFrame||_global.webkitRequestAnimationFrame||function(a){return _global.setTimeout(a,20)};return function(b){return a(b)}}(),d=function(){var 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BI.DOM.rgb2hex(BI.DOM.json2rgb({r:this.R.getValue(),g:this.G.getValue(),b:this.B.getValue()}))}}),BI.SimpleColorPickerEditor.EVENT_CHANGE="SimpleColorPickerEditor.EVENT_CHANGE",BI.shortcut("bi.simple_color_picker_editor",BI.SimpleColorPickerEditor),BI.Farbtastic=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Farbtastic.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-farbtastic",width:195,height:195})},_init:function(){BI.Farbtastic.superclass._init.apply(this,arguments)},mounted:function(){var a=this;this.farbtastic=$.farbtastic(this.element,function(b){a.fireEvent(BI.Farbtastic.EVENT_CHANGE,a.getValue(),a)})},setValue:function(a){this.farbtastic.setColor(a)},getValue:function(){return this.farbtastic.color}}),BI.Farbtastic.EVENT_CHANGE="Farbtastic.EVENT_CHANGE",BI.shortcut("bi.farbtastic",BI.Farbtastic),jQuery.fn.farbtastic=function(a){return $.farbtastic(this,a),this},jQuery.farbtastic=function(a,b){var a=$(a).get(0);return a.farbtastic||(a.farbtastic=new jQuery._farbtastic(a,b))},jQuery._farbtastic=function(a,b){var c=this;$(a).html('
');var d=$(".farbtastic",a);c.wheel=$(".wheel",a).get(0),c.radius=84,c.square=100,c.width=194,navigator.appVersion.match(/MSIE [0-6]\./)&&$("*",d).each(function(){if("none"!=this.currentStyle.backgroundImage){var a=this.currentStyle.backgroundImage;a=this.currentStyle.backgroundImage.substring(5,a.length-2),$(this).css({backgroundImage:"none",filter:"progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='"+a+"')"})}}),c.linkTo=function(a){return"object"==typeof c.callback&&$(c.callback).unbind("keyup",c.updateValue),c.color=null,"function"==typeof a?c.callback=a:"object"!=typeof a&&"string"!=typeof a||(c.callback=$(a),c.callback.bind("keyup",c.updateValue),c.callback.get(0).value&&c.setColor(c.callback.get(0).value)),this},c.updateValue=function(a){this.value&&this.value!=c.color&&c.setColor(this.value)},c.setColor=function(a){var b=c.unpack(a);return c.color!=a&&b&&(c.color=a,c.rgb=b,c.hsl=c.RGBToHSL(c.rgb),c.updateDisplay()),this},c.setHSL=function(a){return c.hsl=a,c.rgb=c.HSLToRGB(a),c.color=c.pack(c.rgb),c.updateDisplay(),this},c.widgetCoords=function(a){var b,d,e=a.target||a.srcElement,f=c.wheel;if("undefined"!=typeof a.offsetX){for(var g={x:a.offsetX,y:a.offsetY},h=e;h;)h.mouseX=g.x,h.mouseY=g.y,g.x+=h.offsetLeft,g.y+=h.offsetTop,h=h.offsetParent;for(var h=f,i={x:0,y:0};h;){if("undefined"!=typeof h.mouseX){b=h.mouseX-i.x,d=h.mouseY-i.y;break}i.x+=h.offsetLeft,i.y+=h.offsetTop,h=h.offsetParent}for(h=e;h;)h.mouseX=void 0,h.mouseY=void 0,h=h.offsetParent}else{var g=c.absolutePosition(f);b=(a.pageX||0*(a.clientX+$("html").get(0).scrollLeft))-g.x,d=(a.pageY||0*(a.clientY+$("html").get(0).scrollTop))-g.y}return{x:b-c.width/2,y:d-c.width/2}},c.click=function(a){var b=c.widgetCoords(a);return c.circleDrag=2*Math.max(Math.abs(b.x),Math.abs(b.y))>c.square,c.mousemove(a),!1},c.mousemove=function(a){var b=c.widgetCoords(a);if(c.circleDrag){var d=Math.atan2(b.x,-b.y)/6.28;d<0&&(d+=1),c.setHSL([d,c.hsl[1],c.hsl[2]])}else{var e=Math.max(0,Math.min(1,-(b.x/c.square)+.5)),f=Math.max(0,Math.min(1,-(b.y/c.square)+.5));c.setHSL([c.hsl[0],e,f])}return!1},c.updateDisplay=function(){var a=6.28*c.hsl[0];$(".h-marker",d).css({left:Math.round(Math.sin(a)*c.radius+c.width/2)+"px",top:Math.round(-Math.cos(a)*c.radius+c.width/2)+"px"}),$(".sl-marker",d).css({left:Math.round(c.square*(.5-c.hsl[1])+c.width/2)+"px",top:Math.round(c.square*(.5-c.hsl[2])+c.width/2)+"px"}),$(".color",d).css("backgroundColor",c.pack(c.HSLToRGB([c.hsl[0],1,.5]))),"object"==typeof c.callback?($(c.callback).css({backgroundColor:c.color,color:c.hsl[2]>.5?"#000":"#fff"}),$(c.callback).each(function(){this.value&&this.value!=c.color&&(this.value=c.color)})):"function"==typeof c.callback&&c.callback.call(c,c.color)},c.absolutePosition=function(a){var b={x:a.offsetLeft,y:a.offsetTop};if(a.offsetParent){var d=c.absolutePosition(a.offsetParent);b.x+=d.x,b.y+=d.y}return b},c.pack=function(a){var b=Math.round(255*a[0]),c=Math.round(255*a[1]),d=Math.round(255*a[2]);return"#"+(b<16?"0":"")+b.toString(16)+(c<16?"0":"")+c.toString(16)+(d<16?"0":"")+d.toString(16)},c.unpack=function(a){return 7==a.length?[parseInt("0x"+a.substring(1,3))/255,parseInt("0x"+a.substring(3,5))/255,parseInt("0x"+a.substring(5,7))/255]:4==a.length?[parseInt("0x"+a.substring(1,2))/15,parseInt("0x"+a.substring(2,3))/15,parseInt("0x"+a.substring(3,4))/15]:void 0},c.HSLToRGB=function(a){var b,c,d=a[0],e=a[1],f=a[2];return c=f<=.5?f*(e+1):f+e-f*e,b=2*f-c,[this.hueToRGB(b,c,d+.33333),this.hueToRGB(b,c,d),this.hueToRGB(b,c,d-.33333)]},c.hueToRGB=function(a,b,c){return c=c<0?c+1:c>1?c-1:c,6*c<1?a+(b-a)*c*6:2*c<1?b:3*c<2?a+(b-a)*(.66666-c)*6:a},c.RGBToHSL=function(a){var b,c,d,e,f,g,h=a[0],i=a[1],j=a[2];return b=Math.min(h,Math.min(i,j)),c=Math.max(h,Math.max(i,j)),d=c-b,g=(b+c)/2,f=0,g>0&&g<1&&(f=d/(g<.5?2*g:2-2*g)),e=0,d>0&&(c==h&&c!=i&&(e+=(i-j)/d),c==i&&c!=j&&(e+=2+(j-h)/d),c==j&&c!=h&&(e+=4+(h-i)/d),e/=6),[e,f,g]},$("*",d).click(c.click),c.setColor("#000000"),b&&c.linkTo(b)},BI.BubbleCombo=BI.inherit(BI.Widget,{_const:{TRIANGLE_LENGTH:6},_defaultConfig:function(){return BI.extend(BI.BubbleCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-bubble-combo",trigger:"click",toggle:!0,direction:"bottom",isDefaultInit:!1,destroyWhenHide:!1,isNeedAdjustHeight:!0,isNeedAdjustWidth:!0,stopPropagation:!1,adjustLength:0,hideChecker:BI.emptyFn,offsetStyle:"left",el:{},popup:{}})},_init:function(){BI.BubbleCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.combo=BI.createWidget({type:"bi.combo",element:this,trigger:b.trigger,toggle:b.toggle,container:b.container,direction:b.direction,isDefaultInit:b.isDefaultInit,destroyWhenHide:b.destroyWhenHide,isNeedAdjustHeight:b.isNeedAdjustHeight,isNeedAdjustWidth:b.isNeedAdjustWidth,adjustLength:this._getAdjustLength(),stopPropagation:b.stopPropagation,adjustXOffset:0,adjustYOffset:0,hideChecker:b.hideChecker,offsetStyle:b.offsetStyle,el:b.el,popup:BI.extend({type:"bi.bubble_popup_view"},b.popup)}),this.combo.on(BI.Combo.EVENT_TRIGGER_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_TRIGGER_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.BubbleCombo.EVENT_CHANGE,arguments)}),this.combo.on(BI.Combo.EVENT_EXPAND,function(){a.fireEvent(BI.BubbleCombo.EVENT_EXPAND,arguments)}),this.combo.on(BI.Combo.EVENT_COLLAPSE,function(){a.fireEvent(BI.BubbleCombo.EVENT_COLLAPSE,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_INIT,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_INIT,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_POPUPVIEW,function(){a._showTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_AFTER_POPUPVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_BEFORE_HIDEVIEW,function(){a._hideTriangle(),a.fireEvent(BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW,arguments)}),this.combo.on(BI.Combo.EVENT_AFTER_HIDEVIEW,function(){a.fireEvent(BI.BubbleCombo.EVENT_AFTER_HIDEVIEW,arguments)})},_getAdjustLength:function(){return this._const.TRIANGLE_LENGTH+this.options.adjustLength},_createTriangle:function(a){var b={},c={},d=this.options.adjustLength,e=this.element.offset(),f=e.left,g=e.left+this.element.outerWidth(),h=e.top,i=e.top+this.element.outerHeight();switch(a){case"left":b={top:h,height:this.element.outerHeight(),left:f-d-this._const.TRIANGLE_LENGTH},c={width:this._const.TRIANGLE_LENGTH};break;case"right":b={top:h,height:this.element.outerHeight(),left:g+d},c={width:this._const.TRIANGLE_LENGTH};break;case"top":b={left:f,width:this.element.outerWidth(),top:h-d-this._const.TRIANGLE_LENGTH},c={height:this._const.TRIANGLE_LENGTH};break;case"bottom":b={left:f,width:this.element.outerWidth(),top:i+d},c={height:this._const.TRIANGLE_LENGTH}}this.triangle&&this.triangle.destroy(),this.triangle=BI.createWidget(c,{type:"bi.center_adapt",cls:"button-combo-triangle-wrapper",items:[{type:"bi.layout",cls:"bubble-combo-triangle-"+a+" bi-high-light-border"}]}),b.el=this.triangle,BI.createWidget({type:"bi.absolute",element:this,items:[b]})},_createLeftTriangle:function(){this._createTriangle("left")},_createRightTriangle:function(){this._createTriangle("right")},_createTopTriangle:function(){this._createTriangle("top")},_createBottomTriangle:function(){this._createTriangle("bottom")},_showTriangle:function(){var a=this.combo.getPopupPosition();switch(a.dir){case"left,top":case"left,bottom":this._createLeftTriangle();break;case"right,top":case"right,bottom":this._createRightTriangle();break;case"top,left":case"top,right":this._createTopTriangle();break;case"bottom,left":case"bottom,right":this._createBottomTriangle()}},_hideTriangle:function(){this.triangle&&this.triangle.destroy(),this.triangle=null},hideView:function(){this._hideTriangle(),this.combo&&this.combo.hideView()},showView:function(){this.combo&&this.combo.showView()},isViewVisible:function(){return this.combo.isViewVisible()}}),BI.BubbleCombo.EVENT_TRIGGER_CHANGE="EVENT_TRIGGER_CHANGE",BI.BubbleCombo.EVENT_CHANGE="EVENT_CHANGE",BI.BubbleCombo.EVENT_EXPAND="EVENT_EXPAND",BI.BubbleCombo.EVENT_COLLAPSE="EVENT_COLLAPSE",BI.BubbleCombo.EVENT_AFTER_INIT="EVENT_AFTER_INIT",BI.BubbleCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.BubbleCombo.EVENT_AFTER_POPUPVIEW="EVENT_AFTER_POPUPVIEW",BI.BubbleCombo.EVENT_BEFORE_HIDEVIEW="EVENT_BEFORE_HIDEVIEW",BI.BubbleCombo.EVENT_AFTER_HIDEVIEW="EVENT_AFTER_HIDEVIEW",BI.shortcut("bi.bubble_combo",BI.BubbleCombo),BI.BubblePopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.BubblePopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:a.baseCls+" bi-bubble-popup-view",minWidth:220,maxWidth:300,minHeight:90})},_init:function(){BI.BubblePopupView.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.bubble_popup_view",BI.BubblePopupView),BI.BubblePopupBarView=BI.inherit(BI.BubblePopupView,{_defaultConfig:function(){return BI.extend(BI.BubblePopupBarView.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-bubble-bar-popup-view",buttons:[{value:BI.i18nText("BI-Basic_Cancel"),ghost:!0},{value:BI.i18nText(BI.i18nText("BI-Basic_Sure"))}]})},_init:function(){BI.BubblePopupBarView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this,c=[];return BI.each(a.buttons,function(a,d){BI.isWidget(d)?c.push(d):c.push(BI.extend({type:"bi.button",height:24,handler:function(a){b.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,a)}},d))}),BI.createWidget({type:"bi.center",height:44,rgap:15,items:[{type:"bi.right_vertical_adapt",lgap:10,items:c}]})},_createView:function(){var a=this.options,b=BI.createWidget({type:"bi.button_group",items:[a.el],layouts:[{type:"bi.vertical",hgap:15,tgap:10}]});return b.element.css("min-height",a.minHeight-44),b}}),BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.bubble_bar_popup_view",BI.BubblePopupBarView),BI.TextBubblePopupBarView=BI.inherit(BI.Widget,{props:function(){return{baseCls:"bi-text-bubble-bar-popup-view",text:"",buttons:[{level:"ignore",value:!1,text:BI.i18nText("BI-Basic_Cancel")},{value:!0,text:BI.i18nText("BI-Basic_Sure")}]}},render:function(){var a=this,b=this.options,c=BI.map(b.buttons,function(b,c){return BI.isWidget(c)?c:BI.extend({type:"bi.button",height:24,handler:function(b){a.fireEvent(BI.BubblePopupBarView.EVENT_CLICK_TOOLBAR_BUTTON,b)}},c)});return{type:"bi.bubble_bar_popup_view",ref:function(){a.popup=this},el:{type:"bi.label",text:b.text,whiteSpace:"normal",textAlign:"left",ref:function(){a.text=this}},buttons:c}},populate:function(a){this.text.setText(a||this.options.text)}}),BI.TextBubblePopupBarView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_bubble_bar_popup_view",BI.TextBubblePopupBarView),BI.EditorIconCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.EditorIconCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseClass:"bi-check-editor-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:""})},_init:function(){BI.EditorIconCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.editor_trigger",items:b.items,height:b.height,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText,value:b.value}),this.trigger.on(BI.EditorTrigger.EVENT_CHANGE,function(){a.popup.setValue(this.getValue()),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.editorIconCheckCombo.hideView(),a.fireEvent(BI.EditorIconCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editorIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.editorIconCheckCombo.setValue(a)},getValue:function(){return this.trigger.getValue()},populate:function(a){this.options.items=a,this.editorIconCheckCombo.populate(a)}}),BI.EditorIconCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.editor_icon_check_combo",BI.EditorIconCheckCombo),BI.IconCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-combo",width:24,height:24,el:{},popup:{},minWidth:100,maxWidth:"auto",maxHeight:300,direction:"bottom",adjustLength:3,adjustXOffset:0,adjustYOffset:0,offsetStyle:"left",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.icon_combo_trigger",iconCls:b.iconCls,title:b.title,items:b.items,width:b.width,height:b.height,iconWidth:b.iconWidth,iconHeight:b.iconHeight,value:b.value}),this.popup=BI.createWidget(b.popup,{type:"bi.icon_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.IconComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.iconCombo.hideView(),a.fireEvent(BI.IconCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.iconCombo=BI.createWidget({type:"bi.combo",element:this,direction:b.direction,trigger:b.trigger,container:b.container,adjustLength:b.adjustLength,adjustXOffset:b.adjustXOffset,adjustYOffset:b.adjustYOffset,offsetStyle:b.offsetStyle,el:this.trigger,popup:{el:this.popup,maxWidth:b.maxWidth,maxHeight:b.maxHeight,minWidth:b.minWidth}})},showView:function(){this.iconCombo.showView()},hideView:function(){this.iconCombo.hideView()},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.iconCombo.populate(a)}}),BI.IconCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo",BI.IconCombo),BI.IconComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi.icon-combo-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.IconComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconComboPopup.EVENT_CHANGE,c,d); }),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_popup",BI.IconComboPopup),BI.IconComboTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconComboTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-combo-trigger",el:{},items:[],iconCls:"",width:24,height:24,isShowDown:!0,value:""})},_init:function(){BI.IconComboTrigger.superclass._init.apply(this,arguments);var a=this.options,b="";BI.isKey(a.value)&&(b=this._digest(a.value,a.items)),this.button=BI.createWidget(a.el,{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b,disableSelected:!0,width:a.isShowDown?a.width-12:a.width,height:a.height,iconWidth:a.iconWidth,iconHeight:a.iconHeight,selected:BI.isNotEmptyString(b)}),this.down=BI.createWidget({type:"bi.icon_button",disableSelected:!0,cls:"icon-combo-down-icon trigger-triangle-font font-size-12",width:12,height:8,selected:BI.isNotEmptyString(b)}),this.down.setVisible(a.isShowDown),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.button,left:0,right:0,top:0,bottom:0},{el:this.down,right:3,bottom:0}]})},_digest:function(a,b){var c="";return a=BI.isArray(a)?a[0]:a,BI.any(b,function(b,d){if(a===d.value)return c=d.iconCls,!0}),c},populate:function(a){var b=this.options;this.options.items=a||[],this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1)},setValue:function(a){BI.IconComboTrigger.superclass.setValue.apply(this,arguments);var b=this.options,c=this._digest(a,this.options.items);a=BI.isArray(a)?a[0]:a,BI.isNotEmptyString(c)?(this.button.setIcon(c),this.button.setSelected(!0),this.down.setSelected(!0)):(this.button.setIcon(b.iconCls),this.button.setSelected(!1),this.down.setSelected(!1))}}),BI.IconComboTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_combo_trigger",BI.IconComboTrigger),BI.IconTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.IconTextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-value-combo",height:24,iconHeight:null,iconWidth:null,value:"",attributes:{tabIndex:0}})},_init:function(){BI.IconTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_icon_text_trigger",cls:"icon-text-value-trigger",items:b.items,height:b.height,text:b.text,iconCls:b.iconCls,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth,title:b.title,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.icon_text_value_combo_popup",items:b.items,value:b.value,iconHeight:b.iconHeight,iconWidth:b.iconWidth,iconWrapperWidth:b.iconWrapperWidth}),this.popup.on(BI.IconTextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.IconTextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this.setValue(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.options.tipType="warning",this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.options.tipType="success",this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.IconTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo",BI.IconTextValueCombo),BI.IconTextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.IconTextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-icon-text-icon-popup"})},_init:function(){BI.IconTextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_icon_text_item",height:24,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.IconTextValueComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.IconTextValueComboPopup.superclass.populate.apply(this,arguments);var b=this.options;a=BI.createItems(a,{type:"bi.single_select_icon_text_item",height:24,iconWrapperWidth:b.iconWrapperWidth,iconHeight:b.iconHeight,iconWidth:b.iconWidth}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.IconTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.icon_text_value_combo_popup",BI.IconTextValueComboPopup),BI.SearchTextValueCombo=BI.inherit(BI.Widget,{props:{baseCls:"bi-search-text-value-combo",height:24,text:"",items:[],tipType:"",warningTitle:"",attributes:{tabIndex:0}},render:function(){var a=this,b=this.options;return{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,adjustLength:2,toggle:!1,ref:function(){a.combo=this},el:{type:"bi.search_text_value_trigger",cls:"search-text-value-trigger",ref:function(){a.trigger=this},items:b.items,height:b.height-2,text:b.text,value:b.value,tipType:b.tipType,warningTitle:b.warningTitle,title:b.title,listeners:[{eventName:BI.SearchTextValueTrigger.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},popup:{el:{type:"bi.text_value_combo_popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:b.value,items:b.items,ref:function(){a.popup=this,a.trigger.getSearcher().setAdapter(a.popup)},listeners:[{eventName:BI.TextValueComboPopup.EVENT_CHANGE,action:function(){a.setValue(this.getValue()),a.combo.hideView(),a.fireEvent(BI.SearchTextValueCombo.EVENT_CHANGE)}}]},maxHeight:252},listeners:[{eventName:BI.Combo.EVENT_AFTER_HIDEVIEW,action:function(){a.trigger.stopEditing()}},{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.fireEvent(BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},left:0,right:0,bottom:0,top:0},{el:{type:"bi.trigger_icon_button",cls:"trigger-icon-button",ref:function(){a.triggerBtn=this},width:b.height,height:b.height,handler:function(){a.combo.isViewVisible()?a.combo.hideView():a.combo.showView()}},right:0,bottom:0,top:0}]}},mounted:function(){var a=this.options;BI.isKey(a.value)&&this._checkError(a.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.element.removeClass("combo-error").addClass("combo-error"),this.trigger.attr("tipType","warning")):(this.element.removeClass("combo-error"),this.trigger.attr("tipType","success"))}},populate:function(a){this.options.items=a,this.combo.populate(a)},setValue:function(a){this.combo.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]}}),BI.SearchTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.SearchTextValueCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.search_text_value_combo",BI.SearchTextValueCombo),BI.SearchTextValueComboPopup=BI.inherit(BI.Pane,{props:{baseCls:"bi-search-text-value-popup"},render:function(){var a=this,b=this.options;return{type:"bi.vertical",vgap:5,items:[{type:"bi.button_group",ref:function(){a.popup=this},items:BI.createItems(b.items,{type:"bi.single_select_item",textAlign:b.textAlign,height:24}),chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,layouts:[{type:"bi.vertical"}],behaviors:{redmark:function(){return!0}},value:b.value,listeners:[{eventName:BI.Controller.EVENT_CHANGE,action:function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.SearchTextValueComboPopup.EVENT_CHANGE,c,d)}}]}]}},populate:function(a,b,c){var d=BI.concat(a,b);BI.SearchTextValueComboPopup.superclass.populate.apply(this,d),d=BI.createItems(d,{type:"bi.single_select_item",height:24}),this.popup.populate(d,c)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.SearchTextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_combo_popup",BI.SearchTextValueComboPopup),BI.SearchTextValueTrigger=BI.inherit(BI.Trigger,{props:{extraCls:"bi-search-text-value-trigger bi-border",height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.searcher",ref:function(){a.searcher=this},isAutoSearch:!1,el:{type:"bi.state_editor",ref:function(){a.editor=this},text:this._digest(b.value,b.items),value:b.value,height:b.height,tipText:""},popup:{type:"bi.search_text_value_combo_popup",cls:"bi-card",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE},onSearch:function(a,c){var d=a.keyword,e=BI.Func.getSearchResult(b.items,d),f=e.match,g=e.find;c(g,f)},listeners:[{eventName:BI.Searcher.EVENT_CHANGE,action:function(){a.fireEvent(BI.SearchTextValueTrigger.EVENT_CHANGE)}}]}},{el:{type:"bi.layout",width:24},width:24}]}},_setState:function(a){this.editor.setState(a)},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},stopEditing:function(){this.searcher.stopSearch()},getSearcher:function(){return this.searcher},populate:function(a){this.options.items=a},setValue:function(a){this._setState(this._digest(a,this.options.items))},getValue:function(){return this.searcher.getValue()}}),BI.SearchTextValueTrigger.EVENT_SEARCHING="EVENT_SEARCHING",BI.SearchTextValueTrigger.EVENT_STOP="EVENT_STOP",BI.SearchTextValueTrigger.EVENT_START="EVENT_START",BI.SearchTextValueTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.search_text_value_trigger",BI.SearchTextValueTrigger),BI.TextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-check-combo",width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCheckCombo.hideView(),a.fireEvent(BI.TextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}}),BI.isKey(b.value)&&this.setValue(b.value)},setTitle:function(a){this.trigger.setTitle(a)},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},setWarningTitle:function(a){this.trigger.setWarningTitle(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCheckCombo.populate(a)}}),BI.TextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo",BI.TextValueCheckCombo),BI.SmallTextValueCheckCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCheckCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:""})},_init:function(){BI.SmallTextValueCheckCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text,value:b.value}),this.popup=BI.createWidget({type:"bi.text_value_check_combo_popup",chooseType:b.chooseType,items:b.items,value:b.value}),this.popup.on(BI.TextValueCheckComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextIconCheckCombo.hideView(),a.fireEvent(BI.SmallTextValueCheckCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextIconCheckCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:300}})},setValue:function(a){this.SmallTextIconCheckCombo.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextIconCheckCombo.populate(a)}}),BI.SmallTextValueCheckCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_check_combo",BI.SmallTextValueCheckCombo),BI.TextValueCheckComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueCheckComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueCheckComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:this._formatItems(a.items),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueCheckComboPopup.EVENT_CHANGE,c,d)}),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},_formatItems:function(a){return BI.map(a,function(a,b){return BI.extend({type:"bi.icon_text_item",cls:"item-check-font bi-list-item",height:24},b)})},populate:function(a){BI.TextValueCheckComboPopup.superclass.populate.apply(this,arguments),this.popup.populate(this._formatItems(a))},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueCheckComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_check_combo_popup",BI.TextValueCheckComboPopup),BI.TextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-combo",height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,text:"",value:"",attributes:{tabIndex:0}})},_init:function(){BI.TextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",cls:"text-value-trigger",items:b.items,height:b.height,text:b.text,value:b.value,warningTitle:b.warningTitle}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,value:b.value,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.textIconCombo.hideView(),a.fireEvent(BI.TextValueCombo.EVENT_CHANGE,arguments)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.textIconCombo=BI.createWidget({type:"bi.combo",container:b.container,element:this,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}}),BI.isKey(b.value)&&this._checkError(b.value)},_checkError:function(a){if(BI.isNotNull(a)){a=BI.isArray(a)?a:[a];var b=BI.find(this.options.items,function(b,c){return BI.contains(a,c.value)});BI.isNull(b)?(this.trigger.setTipType("warning"),this.element.removeClass("combo-error").addClass("combo-error")):(this.trigger.setTipType("success"),this.element.removeClass("combo-error"))}},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a),this._checkError(a)},getValue:function(){var a=this.popup.getValue();return BI.isNull(a)?[]:BI.isArray(a)?a:[a]},populate:function(a){this.options.items=a,this.textIconCombo.populate(a)}}),BI.TextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo",BI.TextValueCombo),BI.SmallTextValueCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SmallTextValueCombo.superclass._defaultConfig.apply(this,arguments),{width:100,height:24,chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,el:{},text:""})},_init:function(){BI.SmallTextValueCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget(b.el,{type:"bi.small_select_text_trigger",items:b.items,height:b.height,text:b.text}),this.popup=BI.createWidget({type:"bi.text_value_combo_popup",chooseType:b.chooseType,items:b.items}),this.popup.on(BI.TextValueComboPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.SmallTextValueCombo.hideView(),a.fireEvent(BI.SmallTextValueCombo.EVENT_CHANGE)}),this.popup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.SmallTextValueCombo=BI.createWidget({type:"bi.combo",element:this,container:b.container,adjustLength:2,el:this.trigger,popup:{el:this.popup,maxHeight:240}})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()},populate:function(a){this.options.items=a,this.SmallTextValueCombo.populate(a)}}),BI.SmallTextValueCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.small_text_value_combo",BI.SmallTextValueCombo),BI.TextValueComboPopup=BI.inherit(BI.Pane,{_defaultConfig:function(){return BI.extend(BI.TextValueComboPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-icon-popup",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE})},_init:function(){BI.TextValueComboPopup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.popup=BI.createWidget({type:"bi.button_group",items:BI.createItems(a.items,{type:"bi.single_select_item",textAlign:a.textAlign,height:24}),chooseType:a.chooseType,layouts:[{type:"bi.vertical"}],value:a.value}),this.popup.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.TextValueComboPopup.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget({type:"bi.vertical",element:this,vgap:5,items:[this.popup]})},populate:function(a){BI.TextValueComboPopup.superclass.populate.apply(this,arguments),a=BI.createItems(a,{type:"bi.single_select_item",height:24}),this.popup.populate(a)},getValue:function(){return this.popup.getValue()},setValue:function(a){this.popup.setValue(a)}}),BI.TextValueComboPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_combo_popup",BI.TextValueComboPopup),BI.TextValueDownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.TextValueDownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-text-value-down-list-combo",height:24,attributes:{tabIndex:0}})},_init:function(){BI.TextValueDownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this._createValueMap();var c;BI.isNotNull(b.value)&&(c=this._digest(b.value)),this.trigger=BI.createWidget({type:"bi.down_list_select_text_trigger",cls:"text-value-down-list-trigger",height:b.height,items:b.items,text:b.text,value:c}),this.combo=BI.createWidget({type:"bi.down_list_combo",element:this,chooseType:BI.Selection.Single,adjustLength:2,height:b.height,el:this.trigger,value:BI.isNull(c)?[]:[c],items:BI.deepClone(b.items)}),this.combo.on(BI.DownListCombo.EVENT_CHANGE,function(){var b=a.combo.getValue()[0].value;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))}),this.combo.on(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,function(){var b=a.combo.getValue()[0].childValue;b!==a.value&&(a.setValue(b),a.fireEvent(BI.TextValueDownListCombo.EVENT_CHANGE))})},_createValueMap:function(){var a=this;this.valueMap={},BI.each(BI.flatten(this.options.items),function(b,c){BI.has(c,"el")?BI.each(c.children,function(b,d){a.valueMap[d.value]={value:c.el.value,childValue:d.value}}):a.valueMap[c.value]={value:c.value}})},_digest:function(a){return this.value=a,this.valueMap[a]},setValue:function(a){a=this._digest(a),this.combo.setValue([a]),this.trigger.setValue(a)},getValue:function(){var a=this.combo.getValue()[0];return[a.childValue||a.value]},populate:function(a){this.options.items=BI.flatten(a),this.combo.populate(a),this._createValueMap()}}),BI.TextValueDownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.text_value_down_list_combo",BI.TextValueDownListCombo),BI.DownListSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.DownListSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-select-text-trigger",height:24,text:""})},_init:function(){BI.DownListSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.select_text_trigger",element:this,height:a.height,items:this._formatItemArray(a.items),text:a.text,value:BI.isNull(a.value)?"":a.value.childValue||a.value.value})},_formatItemArray:function(){var a=BI.flatten(BI.deepClone(this.options.items)),b=[];return BI.each(a,function(a,c){BI.has(c,"el")?(BI.each(c.children,function(a,b){b.text=c.el.text+"("+b.text+")"}),b=BI.concat(b,c.children)):b.push(c)}),b},setValue:function(a){this.trigger.setValue(a.childValue||a.value)},populate:function(a){this.trigger.populate(this._formatItemArray(a))}}),BI.shortcut("bi.down_list_select_text_trigger",BI.DownListSelectTextTrigger),BI.ClearEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ClearEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-clear-editor",height:24,errorText:"",watermark:"",validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){BI.ClearEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker,value:b.value}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"search-close-h-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.ClearEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ClearEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ClearEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ClearEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ClearEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.ClearEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ClearEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.ClearEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ClearEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ClearEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.ClearEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.ClearEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.ClearEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ClearEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ClearEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ClearEditor.EVENT_STOP)}),BI.isKey(b.value)?this.clear.visible():this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isValid:function(){return this.editor.isValid()}}),BI.ClearEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ClearEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ClearEditor.EVENT_BLUR="EVENT_BLUR",BI.ClearEditor.EVENT_CLICK="EVENT_CLICK",BI.ClearEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ClearEditor.EVENT_SPACE="EVENT_SPACE",BI.ClearEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.ClearEditor.EVENT_CLEAR="EVENT_CLEAR",BI.ClearEditor.EVENT_START="EVENT_START",BI.ClearEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ClearEditor.EVENT_STOP="EVENT_STOP",BI.ClearEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ClearEditor.EVENT_VALID="EVENT_VALID",BI.ClearEditor.EVENT_ERROR="EVENT_ERROR",BI.ClearEditor.EVENT_ENTER="EVENT_ENTER",BI.ClearEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ClearEditor.EVENT_REMOVE="EVENT_REMOVE",BI.ClearEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.clear_editor",BI.ClearEditor),BI.ShelterEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.ShelterEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-shelter-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,textAlign:"left"})},_init:function(){BI.ShelterEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"shelter-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:b.textAlign,height:b.height,hgap:b.hgap}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.text.on(BI.Controller.EVENT_CHANGE,function(){arguments[2]=a,a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK_LABEL)}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.ShelterEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.ShelterEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.ShelterEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.ShelterEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.ShelterEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.ShelterEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.ShelterEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.ShelterEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.ShelterEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.ShelterEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.ShelterEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.ShelterEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.ShelterEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.ShelterEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText(),this.text.doRedMark(b.keyword)},_checkText:function(){var a=this.options;""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setTextStyle:function(a){this.text.setStyle(a)},setValue:function(a){this.editor.setValue(a),this._checkText(),this.text.doRedMark(this.options.keyword)},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.ShelterEditor.EVENT_CHANGE="EVENT_CHANGE",BI.ShelterEditor.EVENT_FOCUS="EVENT_FOCUS",BI.ShelterEditor.EVENT_BLUR="EVENT_BLUR",BI.ShelterEditor.EVENT_CLICK="EVENT_CLICK",BI.ShelterEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.ShelterEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.ShelterEditor.EVENT_START="EVENT_START",BI.ShelterEditor.EVENT_PAUSE="EVENT_PAUSE",BI.ShelterEditor.EVENT_STOP="EVENT_STOP",BI.ShelterEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.ShelterEditor.EVENT_VALID="EVENT_VALID",BI.ShelterEditor.EVENT_ERROR="EVENT_ERROR",BI.ShelterEditor.EVENT_ENTER="EVENT_ENTER",BI.ShelterEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.ShelterEditor.EVENT_SPACE="EVENT_SPACE",BI.ShelterEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.shelter_editor",BI.ShelterEditor),BI.SignEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SignEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-sign-editor", hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SignEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"sign-editor-text",title:b.title,warningTitle:b.warningTitle,tipType:b.tipType,textAlign:"left",height:b.height,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.selectAll()}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SignEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SignEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SignEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SignEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SignEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SignEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SignEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a._checkText(),a.fireEvent(BI.SignEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SignEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SignEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SignEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SignEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a._checkText(),a.fireEvent(BI.SignEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SignEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SignEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SignEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),a._checkText()},_checkText:function(){var a=this.options;BI.nextTick(BI.bind(function(){""===this.editor.getValue()?(this.text.setValue(a.watermark||""),this.text.element.addClass("bi-water-mark")):(this.text.setValue(this.editor.getValue()),this.text.element.removeClass("bi-water-mark"))},this))},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},setTitle:function(a){this.text.setTitle(a)},setWarningTitle:function(a){this.text.setWarningTitle(a)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint(),this._checkText()},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),this._checkText()},getValue:function(){return this.editor.getValue()},getState:function(){return this.text.getValue()},setState:function(a){this._showHint(),this.text.setValue(a)}}),BI.SignEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SignEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SignEditor.EVENT_BLUR="EVENT_BLUR",BI.SignEditor.EVENT_CLICK="EVENT_CLICK",BI.SignEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SignEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SignEditor.EVENT_START="EVENT_START",BI.SignEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SignEditor.EVENT_STOP="EVENT_STOP",BI.SignEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SignEditor.EVENT_VALID="EVENT_VALID",BI.SignEditor.EVENT_ERROR="EVENT_ERROR",BI.SignEditor.EVENT_ENTER="EVENT_ENTER",BI.SignEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SignEditor.EVENT_SPACE="EVENT_SPACE",BI.SignEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.sign_editor",BI.SignEditor),BI.StateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!0,watermark:"",errorText:"",height:24,text:BI.i18nText("BI-Basic_Unrestricted")})},_init:function(){BI.StateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text tip-text-style",textAlign:"left",height:b.height,text:b.text,hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")},title:BI.isNotNull(b.tipText)?b.tipText:function(){var b="";return BI.isString(a.stateValue)&&(b=a.stateValue),BI.isArray(a.stateValue)&&1===a.stateValue.length&&(b=a.stateValue[0]),b},warningTitle:b.warningTitle,tipType:b.tipType}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.StateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.StateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.StateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.StateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.StateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.StateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.StateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.StateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.StateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.StateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.StateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.StateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.StateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.StateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.StateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.StateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this.options.disabled===!1&&(this._showInput(),this.editor.focus())},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){var b=this.options;return BI.StateEditor.superclass.setValue.apply(this,arguments),this.stateValue=a,BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Select_All")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text"))):BI.isString(a)?(this.text.setText(a),void this.text.element.removeClass("state-editor-infinite-text")):void(BI.isArray(a)&&(BI.isEmpty(a)?(this.text.setText(b.text),this.text.element.addClass("state-editor-infinite-text")):1===a.length?(this.text.setText(a[0]),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Select_Part")),this.text.element.removeClass("state-editor-infinite-text"))))},setTipType:function(a){this.text.options.tipType=a}}),BI.StateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.StateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.StateEditor.EVENT_BLUR="EVENT_BLUR",BI.StateEditor.EVENT_CLICK="EVENT_CLICK",BI.StateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.StateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.StateEditor.EVENT_START="EVENT_START",BI.StateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.StateEditor.EVENT_STOP="EVENT_STOP",BI.StateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.StateEditor.EVENT_VALID="EVENT_VALID",BI.StateEditor.EVENT_ERROR="EVENT_ERROR",BI.StateEditor.EVENT_ENTER="EVENT_ENTER",BI.StateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.StateEditor.EVENT_SPACE="EVENT_SPACE",BI.StateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.state_editor",BI.StateEditor),BI.SimpleStateEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SimpleStateEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-simple-state-editor",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,mouseOut:!1,allowBlank:!0,watermark:"",errorText:"",height:24})},_init:function(){BI.SimpleStateEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.text=BI.createWidget({type:"bi.text_button",cls:"state-editor-infinite-text",textAlign:"left",height:b.height,text:BI.i18nText("BI-Basic_Unrestricted"),hgap:4,handler:function(){a._showInput(),a.editor.focus(),a.editor.setValue("")}}),this.text.on(BI.TextButton.EVENT_CHANGE,function(){BI.nextTick(function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK_LABEL)})}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.text,left:0,right:0,top:0,bottom:0}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_FOCUS,arguments)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_BLUR,arguments)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CLICK,arguments)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SimpleStateEditor.EVENT_KEY_DOWN,arguments)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_VALID,arguments)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a._showHint(),a.fireEvent(BI.SimpleStateEditor.EVENT_CONFIRM,arguments)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_START,arguments)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_PAUSE,arguments)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_STOP,arguments)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_SPACE,arguments)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ERROR,arguments)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_ENTER,arguments)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_RESTRICT,arguments)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a.fireEvent(BI.SimpleStateEditor.EVENT_EMPTY,arguments)}),BI.createWidget({type:"bi.vertical",scrolly:!1,element:this,items:[this.editor]}),this._showHint(),BI.isNotNull(b.text)&&this.setState(b.text)},doRedMark:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){""===this.editor.getValue()&&BI.isKey(this.options.watermark)||this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)},focus:function(){this._showInput(),this.editor.focus()},blur:function(){this.editor.blur(),this._showHint()},_showInput:function(){this.editor.visible(),this.text.invisible()},_showHint:function(){this.editor.invisible(),this.text.visible()},isValid:function(){return this.editor.isValid()},setErrorText:function(a){this.editor.setErrorText(a)},getErrorText:function(){return this.editor.getErrorText()},isEditing:function(){return this.editor.isEditing()},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a)},getValue:function(){return this.editor.getValue()},getState:function(){return this.editor.getValue().match(/[^\s]+/g)},setState:function(a){return BI.SimpleStateEditor.superclass.setValue.apply(this,arguments),BI.isNumber(a)?void(a===BI.Selection.All?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):a===BI.Selection.Multi?(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text"))):void(BI.isArray(a)&&1!==a.length?BI.isEmpty(a)?(this.text.setText(BI.i18nText("BI-Basic_Unrestricted")),this.text.element.addClass("state-editor-infinite-text")):(this.text.setText(BI.i18nText("BI-Already_Selected")),this.text.element.removeClass("state-editor-infinite-text")):(this.text.setText(a),this.text.setTitle(a),this.text.element.removeClass("state-editor-infinite-text")))}}),BI.SimpleStateEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SimpleStateEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SimpleStateEditor.EVENT_BLUR="EVENT_BLUR",BI.SimpleStateEditor.EVENT_CLICK="EVENT_CLICK",BI.SimpleStateEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SimpleStateEditor.EVENT_CLICK_LABEL="EVENT_CLICK_LABEL",BI.SimpleStateEditor.EVENT_START="EVENT_START",BI.SimpleStateEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SimpleStateEditor.EVENT_STOP="EVENT_STOP",BI.SimpleStateEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SimpleStateEditor.EVENT_VALID="EVENT_VALID",BI.SimpleStateEditor.EVENT_ERROR="EVENT_ERROR",BI.SimpleStateEditor.EVENT_ENTER="EVENT_ENTER",BI.SimpleStateEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SimpleStateEditor.EVENT_SPACE="EVENT_SPACE",BI.SimpleStateEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.simple_state_editor",BI.SimpleStateEditor),BI.MultiPopupView=BI.inherit(BI.PopupView,{_defaultConfig:function(){var a=BI.MultiPopupView.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{_baseCls:(a._baseCls||"")+" bi-multi-list-view",buttons:[BI.i18nText("BI-Basic_Sure")]})},_init:function(){BI.MultiPopupView.superclass._init.apply(this,arguments)},_createToolBar:function(){var a=this.options,b=this;if(0!==a.buttons.length){var c=[];return BI.each(a.buttons,function(a,b){c.push({text:b,value:a})}),this.buttongroup=BI.createWidget({type:"bi.button_group",cls:"list-view-toolbar bi-high-light bi-split-top",height:24,items:BI.createItems(c,{type:"bi.text_button",once:!1,shadow:!0,isShadowShowingOnSelected:!0}),layouts:[{type:"bi.center",hgap:0,vgap:0}]}),this.buttongroup.on(BI.ButtonGroup.EVENT_CHANGE,function(a,c){b.fireEvent(BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON,a,c)}),this.buttongroup}}}),BI.MultiPopupView.EVENT_CHANGE="EVENT_CHANGE",BI.MultiPopupView.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.multi_popup_view",BI.MultiPopupView),BI.PopupPanel=BI.inherit(BI.MultiPopupView,{_defaultConfig:function(){var a=BI.PopupPanel.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-popup-panel",title:""})},_init:function(){BI.PopupPanel.superclass._init.apply(this,arguments)},_createTool:function(){var a=this,b=this.options,c=BI.createWidget({type:"bi.icon_button",cls:"close-h-font",width:25,height:25});return c.on(BI.IconButton.EVENT_CHANGE,function(){a.setVisible(!1),a.fireEvent(BI.PopupPanel.EVENT_CLOSE)}),BI.createWidget({type:"bi.htape",cls:"popup-panel-title bi-header-background",height:25,items:[{el:{type:"bi.label",textAlign:"left",text:b.title,height:25,lgap:10}},{el:c,width:25}]})}}),BI.PopupPanel.EVENT_CHANGE="EVENT_CHANGE",BI.PopupPanel.EVENT_CLOSE="EVENT_CLOSE",BI.PopupPanel.EVENT_CLICK_TOOLBAR_BUTTON="EVENT_CLICK_TOOLBAR_BUTTON",BI.shortcut("bi.popup_panel",BI.PopupPanel),BI.ListPane=BI.inherit(BI.Pane,{_defaultConfig:function(){var a=BI.ListPane.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-list-pane",logic:{dynamic:!0},lgap:0,rgap:0,tgap:0,bgap:0,vgap:0,hgap:0,items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,el:{type:"bi.button_group"}})},_init:function(){BI.ListPane.superclass._init.apply(this,arguments);var a=this,b=this.options;this.button_group=BI.createWidget(b.el,{type:"bi.button_group",chooseType:BI.ButtonGroup.CHOOSE_TYPE_SINGLE,behaviors:{},items:b.items,itemsCreator:function(c,d){1===c.times&&(a.empty(),BI.nextTick(function(){a.loading()})),b.itemsCreator(c,function(){d.apply(a,arguments),1===c.times&&BI.nextTick(function(){a.loaded()})})},hasNext:b.hasNext,layouts:[{type:"bi.vertical"}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),b===BI.Events.CLICK&&a.fireEvent(BI.ListPane.EVENT_CHANGE,c,d)}),this.check(),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Top),BI.extend({scrolly:!0,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,vgap:b.vgap,hgap:b.hgap},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Top,this.button_group)}))))},hasPrev:function(){return this.button_group.hasPrev&&this.button_group.hasPrev()},hasNext:function(){return this.button_group.hasNext&&this.button_group.hasNext()},prependItems:function(a){this.options.items=a.concat(this.options.items),this.button_group.prependItems.apply(this.button_group,arguments),this.check()},addItems:function(a){this.options.items=this.options.items.concat(a),this.button_group.addItems.apply(this.button_group,arguments),this.check()},removeItemAt:function(a){a=a||[],BI.removeAt(this.options.items,a),this.button_group.removeItemAt.apply(this.button_group,arguments),this.check()},populate:function(a){var b=this;this.options;return 0===arguments.length&&BI.isFunction(this.button_group.attr("itemsCreator"))?void this.button_group.attr("itemsCreator").apply(this,[{times:1},function(){if(0===arguments.length)throw new Error("参数不能为空");b.populate.apply(b,arguments)}]):(BI.ListPane.superclass.populate.apply(this,arguments),void this.button_group.populate.apply(this.button_group,arguments))},empty:function(){this.button_group.empty()},setNotSelectedValue:function(){this.button_group.setNotSelectedValue.apply(this.button_group,arguments)},getNotSelectedValue:function(){return this.button_group.getNotSelectedValue()},setValue:function(){this.button_group.setValue.apply(this.button_group,arguments)},getValue:function(){return this.button_group.getValue.apply(this.button_group,arguments)},getAllButtons:function(){return this.button_group.getAllButtons()},getAllLeaves:function(){return this.button_group.getAllLeaves()},getSelectedButtons:function(){return this.button_group.getSelectedButtons()},getNotSelectedButtons:function(){return this.button_group.getNotSelectedButtons()},getIndexByValue:function(a){return this.button_group.getIndexByValue(a)},getNodeById:function(a){return this.button_group.getNodeById(a)},getNodeByValue:function(a){return this.button_group.getNodeByValue(a)}}),BI.ListPane.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.list_pane",BI.ListPane),BI.Panel=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Panel.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-panel bi-border",title:"",titleButtons:[],el:{},logic:{dynamic:!1}})},_init:function(){BI.Panel.superclass._init.apply(this,arguments);var a=this.options;BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("vertical",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("top",this._createTitle(),this.options.el)}))))},_createTitle:function(){var a=this,b=this.options;return this.text=BI.createWidget({type:"bi.label",cls:"panel-title-text",text:b.title,height:30}),this.button_group=BI.createWidget({type:"bi.button_group",items:b.titleButtons,layouts:[{type:"bi.center_adapt",lgap:10}]}),this.button_group.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.button_group.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Panel.EVENT_CHANGE,b,c)}),{el:{type:"bi.left_right_vertical_adapt",cls:"panel-title bi-header-background bi-border-bottom",height:29,items:{left:[this.text],right:[this.button_group]},lhgap:10,rhgap:10},height:29}},setTitle:function(a){this.text.setValue(a)}}),BI.Panel.EVENT_CHANGE="Panel.EVENT_CHANGE",BI.shortcut("bi.panel",BI.Panel),BI.LinearSegmentButton=BI.inherit(BI.BasicButton,{props:{extraCls:"bi-line-segment-button bi-list-item-effect",once:!0,readonly:!0,hgap:10,height:25},render:function(){var a=this,b=this.options;return[{type:"bi.label",text:b.text,height:b.height,value:b.value,hgap:b.hgap,ref:function(){a.text=this}},{type:"bi.absolute",items:[{el:{type:"bi.layout",cls:"line-segment-button-line",height:2,ref:function(){a.line=this}},left:0,right:0,bottom:0}]}]},setSelected:function(a){BI.LinearSegmentButton.superclass.setSelected.apply(this,arguments),a?this.line.element.addClass("bi-high-light-background"):this.line.element.removeClass("bi-high-light-background")},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.linear_segment_button",BI.LinearSegmentButton),BI.LinearSegment=BI.inherit(BI.Widget,{props:{baseCls:"bi-linear-segment bi-split-bottom",items:[],height:29},render:function(){var a=this,b=this.options;return{type:"bi.button_group",items:BI.createItems(b.items,{type:"bi.linear_segment_button",height:b.height-1}),layout:[{type:"bi.center"}],listeners:[{eventName:"__EVENT_CHANGE__",action:function(){a.fireEvent("__EVENT_CHANGE__",arguments)}},{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.buttonGroup=this}}},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.shortcut("bi.linear_segment",BI.LinearSegment),BI.SelectList=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SelectList.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-list",direction:BI.Direction.Top,logic:{dynamic:!0},items:[],itemsCreator:BI.emptyFn,hasNext:BI.emptyFn,onLoaded:BI.emptyFn,toolbar:{type:"bi.multi_select_bar",iconWrapperWidth:36},el:{type:"bi.list_pane"}})},_init:function(){BI.SelectList.superclass._init.apply(this,arguments);var a=this,b=this.options;this.toolbar=BI.createWidget(b.toolbar),this.allSelected=!1,this.toolbar.on(BI.Controller.EVENT_CHANGE,function(b,c,d){a.allSelected=this.isSelected(),b===BI.Events.CLICK&&(a.setAllSelected(a.allSelected),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.list=BI.createWidget(b.el,{type:"bi.list_pane",items:b.items,itemsCreator:function(c,d){1===c.times&&a.toolbar.setVisible(!1),b.itemsCreator(c,function(b){d.apply(a,arguments),1===c.times&&(a.toolbar.setVisible(b&&b.length>0),a.toolbar.setEnable(b&&b.length>0)),a._checkAllSelected()})},onLoaded:b.onLoaded,hasNext:b.hasNext}),this.list.on(BI.Controller.EVENT_CHANGE,function(b,c,d){b===BI.Events.CLICK&&(a._checkAllSelected(),a.fireEvent(BI.SelectList.EVENT_CHANGE,c,d)),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(b.direction),BI.extend({scrolly:!0},b.logic,{items:BI.LogicFactory.createLogicItemsByDirection(b.direction,this.toolbar,this.list)})))),b.items.length<=0&&(this.toolbar.setVisible(!1),this.toolbar.setEnable(!1)),BI.isNotNull(b.value)&&this.setValue(b.value)},_checkAllSelected:function(){var a=this.list.getValue().length,b=this.getAllLeaves().length-a,c=this.list.hasNext(),d=this.toolbar.isSelected(),e=a>0&&(b>0||!d&&c);e=e||b>0&&c&&d,this.toolbar.setHalfSelected(e),!e&&this.toolbar.setSelected(a>0&&b<=0&&(!c||d))},setAllSelected:function(a){BI.each(this.getAllButtons(),function(b,c){(c.setSelected||c.setAllSelected).apply(c,[a])}),this.allSelected=!!a,this.toolbar.setSelected(a),this.toolbar.setHalfSelected(!1)},setToolBarVisible:function(a){this.toolbar.setVisible(a)},isAllSelected:function(){return this.allSelected},hasPrev:function(){return this.list.hasPrev()},hasNext:function(){return this.list.hasNext()},prependItems:function(a){this.list.prependItems.apply(this.list,arguments)},addItems:function(a){this.list.addItems.apply(this.list,arguments)},setValue:function(a){var b=a.type===BI.ButtonGroup.CHOOSE_TYPE_ALL;this.setAllSelected(b),this.list[b?"setNotSelectedValue":"setValue"](a.value),this._checkAllSelected()},getValue:function(){return this.isAllSelected()===!1?{type:BI.ButtonGroup.CHOOSE_TYPE_MULTI,value:this.list.getValue(),assist:this.list.getNotSelectedValue()}:{type:BI.ButtonGroup.CHOOSE_TYPE_ALL,value:this.list.getNotSelectedValue(),assist:this.list.getValue()}},empty:function(){this.list.empty()},populate:function(a){this.toolbar.setVisible(!BI.isEmptyArray(a)),this.toolbar.setEnable(!BI.isEmptyArray(a)),this.list.populate.apply(this.list,arguments),this._checkAllSelected()},_setEnable:function(a){BI.SelectList.superclass._setEnable.apply(this,arguments),this.toolbar.setEnable(a)},resetHeight:function(a){var b=(this.toolbar.element.outerHeight()||25)*(this.toolbar.isVisible()?1:0);this.list.resetHeight?this.list.resetHeight(a-b):this.list.element.css({"max-height":a-b+"px"})},setNotSelectedValue:function(){this.list.setNotSelectedValue.apply(this.list,arguments),this._checkAllSelected()},getNotSelectedValue:function(){return this.list.getNotSelectedValue()},getAllButtons:function(){return this.list.getAllButtons()},getAllLeaves:function(){return this.list.getAllLeaves()},getSelectedButtons:function(){return this.list.getSelectedButtons()},getNotSelectedButtons:function(){return this.list.getNotSelectedButtons()},getIndexByValue:function(a){return this.list.getIndexByValue(a)},getNodeById:function(a){return this.list.getNodeById(a)},getNodeByValue:function(a){return this.list.getNodeByValue(a)}}),BI.SelectList.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.select_list",BI.SelectList),BI.LazyLoader=BI.inherit(BI.Widget,{_const:{PAGE:100},_defaultConfig:function(){return BI.extend(BI.LazyLoader.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-lazy-loader",el:{}})},_init:function(){var a=this,b=this.options;BI.LazyLoader.superclass._init.apply(this,arguments);var c=b.items.length;this.loader=BI.createWidget({type:"bi.loader",element:this,el:b.el,itemsCreator:function(b,c){c(a._getNextItems(b))},hasNext:function(a){return a.count=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:30,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:5,right:74},{el:this.vlabel,top:5,right:111},{el:this.hpager,top:5,right:-9},{el:this.hlabel,top:5,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b); +},b.next)),this.next.on(BI.Controller.EVENT_CHANGE,function(b){b===BI.Events.CLICK&&a._nextLoad()})),BI.createWidget({type:"bi.vertical",element:this,items:[this.next]}),b.isDefaultInit&&BI.isEmpty(b.items)&&BI.nextTick(BI.bind(function(){this.populate()},this)),BI.isNotEmptyArray(b.items)&&this.populate(b.items)},hasNext:function(){var a=this.options;return BI.isNumber(a.count)?this.count=1)},setValue:function(a){this.pager.setValue(a)},setVPage:function(a){this.pager.setValue(a)},setCount:function(a){this.rowCount.setText(a),this.rowCount.setTitle(a)},getCurrentPage:function(){return this.pager.getCurrentPage()},hasPrev:function(){return this.pager.hasPrev()},hasNext:function(){return this.pager.hasNext()},setPagerVisible:function(a){this.editor.setVisible(a),this.allPages.setVisible(a),this.pager.setVisible(a)},populate:function(){this.pager.populate()}}),BI.AllCountPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.all_count_pager",BI.AllCountPager),BI.DirectionPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DirectionPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-direction-pager",height:20,horizontal:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn},vertical:{pages:!1,curr:1,hasPrev:BI.emptyFn,hasNext:BI.emptyFn,firstPage:1,lastPage:BI.emptyFn}})},_init:function(){BI.DirectionPager.superclass._init.apply(this,arguments);var a=this.options;a.vertical,a.horizontal;this._createVPager(),this._createHPager(),this.layout=BI.createWidget({type:"bi.absolute",scrollable:!1,element:this,items:[{el:this.vpager,top:0,right:74},{el:this.vlabel,top:0,right:111},{el:this.hpager,top:0,right:-9},{el:this.hlabel,top:0,right:28}]})},_createVPager:function(){var a=this,b=this.options,c=b.vertical;this.vlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.vpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Up_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev column-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Down_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next column-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.vpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.vpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.vlabel.setValue(this.getCurrentPage()),a.vlabel.setTitle(this.getCurrentPage())})},_createHPager:function(){var a=this,b=this.options,c=b.horizontal;this.hlabel=BI.createWidget({type:"bi.label",width:24,height:20,value:c.curr,title:c.curr,invisible:!0}),this.hpager=BI.createWidget({type:"bi.pager",width:76,layouts:[{type:"bi.horizontal",scrollx:!1,rgap:24,vgap:1}],invisible:!0,dynamicShow:!1,pages:c.pages,curr:c.curr,groups:0,first:!1,last:!1,prev:{type:"bi.icon_button",value:"prev",title:BI.i18nText("BI-Left_Page"),warningTitle:BI.i18nText("BI-Current_Is_First_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-prev row-pre-page-h-font"},next:{type:"bi.icon_button",value:"next",title:BI.i18nText("BI-Right_Page"),warningTitle:BI.i18nText("BI-Current_Is_Last_Page"),height:20,iconWidth:16,iconHeight:16,cls:"direction-pager-next row-next-page-h-font"},hasPrev:c.hasPrev,hasNext:c.hasNext,firstPage:c.firstPage,lastPage:c.lastPage}),this.hpager.on(BI.Pager.EVENT_CHANGE,function(){a.fireEvent(BI.DirectionPager.EVENT_CHANGE)}),this.hpager.on(BI.Pager.EVENT_AFTER_POPULATE,function(){a.hlabel.setValue(this.getCurrentPage()),a.hlabel.setTitle(this.getCurrentPage())})},getVPage:function(){return this.vpager.getCurrentPage()},getHPage:function(){return this.hpager.getCurrentPage()},setVPage:function(a){this.vpager.setValue(a),this.vlabel.setValue(a),this.vlabel.setTitle(a)},setHPage:function(a){this.hpager.setValue(a),this.hlabel.setValue(a),this.hlabel.setTitle(a)},hasVNext:function(){return this.vpager.hasNext()},hasHNext:function(){return this.hpager.hasNext()},hasVPrev:function(){return this.vpager.hasPrev()},hasHPrev:function(){return this.hpager.hasPrev()},setHPagerVisible:function(a){this.hpager.setVisible(a),this.hlabel.setVisible(a)},setVPagerVisible:function(a){this.vpager.setVisible(a),this.vlabel.setVisible(a)},populate:function(){this.vpager.populate(),this.hpager.populate();var a=!1,b=!1;this.hasHNext()||this.hasHPrev()?(this.setHPagerVisible(!0),b=!0):this.setHPagerVisible(!1),this.hasVNext()||this.hasVPrev()?(this.setVPagerVisible(!0),a=!0):this.setVPagerVisible(!1),this.setVisible(b||a);var c=[74,111,-9,28],d=this.layout.attr("items");a===!0&&b===!0?(d[0].right=c[0],d[1].right=c[1],d[2].right=c[2],d[3].right=c[3]):a===!0?(d[0].right=c[2],d[1].right=c[3]):b===!0&&(d[2].right=c[2],d[3].right=c[3]),this.layout.attr("items",d),this.layout.resize()},clear:function(){this.vpager.attr("curr",1),this.hpager.attr("curr",1)}}),BI.DirectionPager.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.direction_pager",BI.DirectionPager),BI.DetailPager=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DetailPager.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-detail-pager",behaviors:{},layouts:[{type:"bi.horizontal",hgap:10,vgap:0}],dynamicShow:!0,dynamicShowFirstLast:!1,dynamicShowPrevNext:!1,pages:!1,curr:function(){return 1},groups:0,jump:BI.emptyFn,first:!1,last:!1,prev:"上一页",next:"下一页",firstPage:1,lastPage:function(){return 1},hasPrev:BI.emptyFn,hasNext:BI.emptyFn})},_init:function(){BI.DetailPager.superclass._init.apply(this,arguments);var a=this;this.currPage=BI.result(this.options,"curr"),this._lock=!1,this._debouce=BI.debounce(function(){a._lock=!1},300),this._populate()},_populate:function(){var a=this,b=this.options,c=[],d={};this.empty();var e=BI.result(b,"pages"),f=BI.result(this,"currPage"),g=BI.result(b,"groups"),h=BI.result(b,"first"),i=BI.result(b,"last"),j=BI.result(b,"prev"),k=BI.result(b,"next");e===!1?(g=0,h=!1,i=!1):g>e&&(g=e),d.index=Math.ceil((f+(g>1&&g!==e?1:0))/(0===g?1:g)),(!b.dynamicShow&&!b.dynamicShowPrevNext||f>1)&&j!==!1&&(BI.isKey(j)?c.push({text:j,value:"prev",disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)}):c.push(BI.extend({disabled:e===!1?b.hasPrev(f)===!1:!(f>1&&j!==!1)},j))),(!b.dynamicShow&&!b.dynamicShowFirstLast||d.index>1&&0!==g)&&h&&(c.push({text:h,value:"first",disabled:!(d.index>1&&0!==g)}),d.index>1&&0!==g&&c.push({type:"bi.label",cls:"page-ellipsis",text:"…"})),d.poor=Math.floor((g-1)/2),d.start=d.index>1?f-d.poor:1,d.end=d.index>1?function(){var a=f+(g-d.poor-1);return a>e?e:a}():g,d.end-d.start1&&0!==g&&e>g&&d.endg&&d.endg&&d.endg&&d.end1},hasNext:function(a){a||(a=1);var b=this.options,c=this.options.pages;return c===!1?b.hasNext(a):ac?c:(d=BI.result(b,"firstPage"),ab.pages?b.pages:a,this.currPage=a;this._populate()},getValue:function(){var a=this.button_group.getValue()[0];switch(a){case"prev":return-1;case"next":return 1;case"first":return BI.MIN;case"last":return BI.MAX;default:return a}},attr:function(a,b){BI.DetailPager.superclass.attr.apply(this,arguments),"curr"===a&&(this.currPage=BI.result(this.options,"curr"))},populate:function(){this._populate()}}),BI.DetailPager.EVENT_CHANGE="EVENT_CHANGE",BI.DetailPager.EVENT_AFTER_POPULATE="EVENT_AFTER_POPULATE",BI.shortcut("bi.detail_pager",BI.DetailPager),BI.SegmentButton=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.SegmentButton.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-segment-button bi-list-item-select",shadow:!0,readonly:!0,hgap:5})},_init:function(){BI.SegmentButton.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",element:this,textHeight:a.height,whiteSpace:a.whiteSpace,text:a.text,value:a.value,hgap:a.hgap})},setSelected:function(){BI.SegmentButton.superclass.setSelected.apply(this,arguments)},setText:function(a){BI.SegmentButton.superclass.setText.apply(this,arguments),this.text.setText(a)},destroy:function(){BI.SegmentButton.superclass.destroy.apply(this,arguments)}}),BI.shortcut("bi.segment_button",BI.SegmentButton),BI.Segment=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.Segment.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-segment",items:[],height:24})},_init:function(){BI.Segment.superclass._init.apply(this,arguments);var a=this,b=this.options;this.buttonGroup=BI.createWidget({element:this,type:"bi.button_group",value:b.value,items:BI.createItems(b.items,{type:"bi.segment_button",height:b.height-2,whiteSpace:b.whiteSpace}),layout:[{type:"bi.center"}]}),this.buttonGroup.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.buttonGroup.on(BI.ButtonGroup.EVENT_CHANGE,function(b,c){a.fireEvent(BI.Segment.EVENT_CHANGE,b,c)})},_setEnable:function(a){BI.Segment.superclass._setEnable.apply(this,arguments),a===!0?this.element.removeClass("base-disabled disabled"):a===!1&&this.element.addClass("base-disabled disabled")},setValue:function(a){this.buttonGroup.setValue(a)},setEnabledValue:function(a){this.buttonGroup.setEnabledValue(a)},getValue:function(){return this.buttonGroup.getValue()}}),BI.Segment.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.segment",BI.Segment),BI.MultiSelectBar=BI.inherit(BI.BasicButton,{_defaultConfig:function(){return BI.extend(BI.MultiSelectBar.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-multi-select-bar",height:25,text:BI.i18nText("BI-Select_All"),isAllCheckedBySelectedValue:BI.emptyFn,disableSelected:!0,isHalfCheckedBySelectedValue:function(a){return a.length>0},halfSelected:!1,iconWrapperWidth:26})},_init:function(){BI.MultiSelectBar.superclass._init.apply(this,arguments);var a=this,b=this.options,c=b.selected===!0,d=!b.selected&&b.halfSelected;this.checkbox=BI.createWidget({type:"bi.checkbox",stopPropagation:!0,handler:function(){a.setSelected(a.isSelected())},selected:c,invisible:d}),this.half=BI.createWidget({type:"bi.half_icon_button",stopPropagation:!0,handler:function(){a.setSelected(!0)},invisible:c||!d}),this.checkbox.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.checkbox.on(BI.Checkbox.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.half.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.CLICK,a.isSelected(),a)}),this.half.on(BI.HalfIconButton.EVENT_CHANGE,function(){a.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,a.isSelected(),a)}),this.text=BI.createWidget({type:"bi.label",textAlign:"left",whiteSpace:"nowrap",textHeight:b.height,height:b.height,hgap:b.hgap,text:b.text,keyword:b.keyword,value:b.value,py:b.py}),BI.createWidget({type:"bi.htape",element:this,items:[{width:b.iconWrapperWidth,el:{type:"bi.center_adapt",items:[this.checkbox,this.half]}},{el:this.text}]})},_setSelected:function(a){this.checkbox.setSelected(!!a)},beforeClick:function(){var a=this.isHalfSelected(),b=this.isSelected();a===!0?this.setSelected(!0):this.setSelected(!b)},setSelected:function(a){this.checkbox.setSelected(a),this.setHalfSelected(!1)},setHalfSelected:function(a){this.halfSelected=!!a,a===!0?(this.checkbox.setSelected(!1),this.half.visible(),this.checkbox.invisible()):(this.half.invisible(),this.checkbox.visible())},isHalfSelected:function(){return!this.isSelected()&&!!this.halfSelected},isSelected:function(){return this.checkbox.isSelected()},setValue:function(a){BI.MultiSelectBar.superclass.setValue.apply(this,arguments);var b=this.options.isAllCheckedBySelectedValue.apply(this,arguments);this._setSelected(b),!b&&this.setHalfSelected(this.options.isHalfCheckedBySelectedValue.apply(this,arguments))},doClick:function(){BI.MultiSelectBar.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.MultiSelectBar.EVENT_CHANGE,this.isSelected(),this)}}),BI.MultiSelectBar.EVENT_CHANGE="MultiSelectBar.EVENT_CHANGE",BI.shortcut("bi.multi_select_bar",BI.MultiSelectBar),BI.LevelTree=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.LevelTree.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-level-tree",el:{chooseType:0},expander:{},items:[],value:""})},_init:function(){BI.LevelTree.superclass._init.apply(this,arguments),this.initTree(this.options.items)},_formatItems:function(a,b,c){var d=this;return BI.each(a,function(e,f){var g={layer:b};BI.isKey(f.id)||(f.id=BI.UUID()),g.pNode=c,f.isParent===!0||f.parent===!0||BI.isNotEmptyArray(f.children)?(g.type="bi.mid_plus_group_node",e===a.length-1&&(g.type="bi.last_plus_group_node",g.isLastNode=!0),0!==e||c||(g.type="bi.first_plus_group_node"),0===e&&e===a.length-1&&(g.type="bi.plus_group_node"),BI.defaults(f,g),d._formatItems(f.children,b+1,f)):(g.type="bi.mid_tree_leaf_item",0!==e||c||(g.type="bi.first_tree_leaf_item"),e===a.length-1&&(g.type="bi.last_tree_leaf_item"),BI.defaults(f,g))}),a},_assertId:function(a){BI.each(a,function(a,b){BI.isKey(b.id)||(b.id=BI.UUID())})},initTree:function(a){var b=this,c=this.options;this.empty(),this._assertId(a),this.tree=BI.createWidget({type:"bi.custom_tree",element:this,expander:BI.extend({el:{},popup:{type:"bi.custom_tree"}},c.expander),items:this._formatItems(BI.Tree.transformToTreeFormat(a),0),value:c.value,el:BI.extend({type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},c.el)}),this.tree.on(BI.Controller.EVENT_CHANGE,function(a,c,d){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.LevelTree.EVENT_CHANGE,c,d)})},stroke:function(a){this.tree.stroke.apply(this.tree,arguments)},populate:function(a,b){a=this._formatItems(BI.Tree.transformToTreeFormat(a),0),this.tree.populate(a,b)},setValue:function(a){this.tree.setValue(a)},getValue:function(){return this.tree.getValue()},getAllLeaves:function(){return this.tree.getAllLeaves()},getNodeById:function(a){return this.tree.getNodeById(a)},getNodeByValue:function(a){return this.tree.getNodeByValue(a)}}),BI.LevelTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.level_tree",BI.LevelTree),BI.DisplayTree=BI.inherit(BI.TreeView,{_defaultConfig:function(){return BI.extend(BI.DisplayTree.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-display-tree"})},_init:function(){BI.DisplayTree.superclass._init.apply(this,arguments)},_configSetting:function(){function a(a,b){return!1}var b={view:{selectedMulti:!1,dblClickExpand:!1,showIcon:!1,nameIsHTML:!0,showTitle:!1},data:{key:{title:"title",name:"text"},simpleData:{enable:!0}},callback:{beforeCollapse:a}};return b},_dealWidthNodes:function(a){a=BI.DisplayTree.superclass._dealWidthNodes.apply(this,arguments);this.options;return BI.each(a,function(a,b){b.isParent=b.isParent||b.parent,null==b.text&&b.count>0&&(b.text=b.value+"("+BI.i18nText("BI-Basic_Altogether")+b.count+BI.i18nText("BI-Basic_Count")+")")}),a},initTree:function(a,b){var b=b||this._configSetting();this.nodes=$.fn.zTree.init(this.tree.element,b,a)},destroy:function(){BI.DisplayTree.superclass.destroy.apply(this,arguments)}}),BI.DisplayTree.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.display_tree",BI.DisplayTree),BI.SimpleTreeView=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.SimpleTreeView.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-simple-tree",itemsCreator:BI.emptyFn,items:null})},_init:function(){BI.SimpleTreeView.superclass._init.apply(this,arguments);var a=this,b=this.options;this.structure=new BI.Tree,this.tree=BI.createWidget({type:"bi.tree_view",element:this,itemsCreator:function(c,d){var e=function(b){d({items:b}),a.structure.initTree(BI.Tree.transformToTreeFormat(b))};BI.isNotNull(b.items)?e(b.items):b.itemsCreator(c,e)}}),this.tree.on(BI.TreeView.EVENT_CHANGE,function(){a.fireEvent(BI.SimpleTreeView.EVENT_CHANGE,arguments)}),BI.isNotEmptyArray(b.items)&&this.populate(),BI.isNotNull(b.value)&&this.setValue(b.value)},populate:function(a,b){a&&(this.options.items=a),this.tree.stroke({keyword:b})},_digest:function(a){a||(a=[]);var b=this,c={},d=[];return BI.each(a,function(a,e){var f=b.structure.search(e,"value");if(f){var g=f;for(g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++);g&&g.getChildrenLength()<=c[g.value];)d.push(g.value),g=g.getParent(),g&&(c[g.value]||(c[g.value]=0),c[g.value]++)}}),BI.makeObject(a.concat(d))},setValue:function(a){this.tree.setValue(this._digest(a))},_getValue:function(){var a=[],b=this.tree.getValue(),c=function(b){BI.each(b,function(b,d){BI.isEmpty(d)?a.push(b):c(d)})};return c(b),a},empty:function(){this.tree.empty()},getValue:function(){var a=this,b=[],c=this._getValue();return BI.each(c,function(c,d){var e=a.structure.search(d,"value");e&&a.structure._traverse(e,function(a){a.isLeaf()&&b.push(a.value)})}),b}}),BI.SimpleTreeView.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.simple_tree",BI.SimpleTreeView),BI.EditorTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.EditorTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-editor-trigger bi-border",height:24,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:""})},_init:function(){this.options.height-=2,BI.EditorTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,value:b.value,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.EditorTrigger.EVENT_CHANGE,arguments)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.editor},{el:{type:"bi.trigger_icon_button",width:b.triggerWidth||b.height},width:b.triggerWidth||b.height}]})},getValue:function(){return this.editor.getValue()},setValue:function(a){this.editor.setValue(a)},setText:function(a){this.editor.setState(a)}}),BI.EditorTrigger.EVENT_CHANGE="BI.EditorTrigger.EVENT_CHANGE",BI.shortcut("bi.editor_trigger",BI.EditorTrigger),BI.IconTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.IconTrigger.superclass._defaultConfig.apply(this,arguments),{extraCls:"bi-icon-trigger",el:{},height:24})},_init:function(){var a=this.options;BI.IconTrigger.superclass._init.apply(this,arguments),this.iconButton=BI.createWidget(a.el,{type:"bi.trigger_icon_button",element:this,width:a.width,height:a.height})}}),BI.shortcut("bi.icon_trigger",BI.IconTrigger),BI.IconTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.IconTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24,iconHeight:null,iconWidth:null})},_init:function(){BI.IconTextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options;this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",ref:function(b){a.wrapper=b},items:[{el:{type:"bi.icon_change_button",cls:"icon-combo-trigger-icon",iconCls:b.iconCls,ref:function(b){a.icon=b},iconHeight:b.iconHeight,iconWidth:b.iconWidth,disableSelected:!0},width:BI.isEmptyString(b.iconCls)?0:b.iconWrapperWidth||b.height},{el:this.text,lgap:BI.isEmptyString(b.iconCls)?5:0},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setValue:function(a){this.text.setValue(a)},setIcon:function(a){var b=this.options;this.icon.setIcon(a);var c=this.wrapper.attr("items")[0],d=this.wrapper.attr("items")[1];BI.isNull(a)||BI.isEmptyString(a)?0!==c.width&&(c.width=0,d.lgap=5,this.wrapper.resize()):c.width!==(b.iconWrapperWidth||b.height)&&(c.width=b.iconWrapperWidth||b.height,d.lgap=0,this.wrapper.resize())},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.icon_text_trigger",BI.IconTextTrigger),BI.SelectIconTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectIconTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border",height:24,iconHeight:null,iconWidth:null,iconCls:""})},_init:function(){this.options.height-=2,BI.SelectIconTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digist(a.value,a.items);this.trigger=BI.createWidget({type:"bi.icon_text_trigger",element:this,text:b.text,iconCls:b.iconCls,height:a.height,iconHeight:a.iconHeight,iconWidth:a.iconWidth,iconWrapperWidth:a.iconWrapperWidth})},_digist:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d,e=BI.Tree.transformToArrayFormat(b);return BI.any(e,function(b,c){if(BI.deepContains(a,c.value))return d={text:c.text||c.value,iconCls:c.iconCls},!0}),BI.isNotNull(d)?{text:d.text,iconCls:d.iconCls}:{text:c.text,iconCls:c.iconCls}},setValue:function(a){var b=this._digist(a,this.options.items);this.trigger.setText(b.text),this.trigger.setIcon(b.iconCls)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_icon_text_trigger",BI.SelectIconTextTrigger),BI.TextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.TextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:24})},_init:function(){BI.TextTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.text=BI.createWidget({type:"bi.label",cls:"select-text-label",textAlign:"left",height:b.height,text:b.text,title:function(){return a.text.getText()},tipType:b.tipType,warningTitle:b.warningTitle,hgap:c.hgap,readonly:b.readonly}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:b.triggerWidth||b.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:b.triggerWidth||b.height}]})},setText:function(a){this.text.setText(a)},setTipType:function(a){this.text.options.tipType=a}}),BI.shortcut("bi.text_trigger",BI.TextTrigger),BI.SelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-select-text-trigger bi-border bi-focus-shadow",height:24})},_init:function(){this.options.height-=2,BI.SelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options;this.trigger=BI.createWidget({type:"bi.text_trigger",element:this,height:a.height,readonly:a.readonly,text:this._digest(a.value,a.items),tipType:a.tipType,warningTitle:a.warningTitle})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b); return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?d.join(","):c.text},setValue:function(a){this.trigger.setText(this._digest(a,this.options.items))},setTipType:function(a){this.trigger.setTipType(a)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.select_text_trigger",BI.SelectTextTrigger),BI.SmallSelectTextTrigger=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.SmallSelectTextTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-small-select-text-trigger bi-border",height:20})},_init:function(){this.options.height-=2,BI.SmallSelectTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._digest(a.text,a.items);this.trigger=BI.createWidget({type:"bi.small_text_trigger",element:this,height:a.height-2,text:b.text,cls:b.cls})},_digest:function(a,b){var c=this.options;a=BI.isArray(a)?a:[a];var d=[],e=BI.Tree.transformToArrayFormat(b);return BI.each(e,function(b,c){BI.deepContains(a,c.value)&&!BI.contains(d,c.text||c.value)&&d.push(c.text||c.value)}),d.length>0?{cls:"",text:d.join(",")}:{cls:"bi-water-mark",text:c.text}},setValue:function(a){var b=this._digest(a,this.options.items);this.trigger.element.removeClass("bi-water-mark").addClass(b.cls),this.trigger.setText(b.text)},populate:function(a){this.options.items=a}}),BI.shortcut("bi.small_select_text_trigger",BI.SmallSelectTextTrigger),BI.SmallTextTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4},_defaultConfig:function(){var a=BI.SmallTextTrigger.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-text-trigger",height:20})},_init:function(){BI.SmallTextTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",textAlign:"left",height:a.height,text:a.text,hgap:b.hgap}),this.trigerButton=BI.createWidget({type:"bi.trigger_icon_button",width:a.triggerWidth||a.height}),BI.createWidget({element:this,type:"bi.htape",items:[{el:this.text},{el:this.trigerButton,width:a.triggerWidth||a.height}]})},setValue:function(a){this.text.setValue(a)},setText:function(a){this.text.setText(a)}}),BI.shortcut("bi.small_text_trigger",BI.SmallTextTrigger),BI.MonthDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.MonthDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-month-combo",height:24,container:null})},_init:function(){BI.MonthDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.month_popup",behaviors:b.behaviors}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue())}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",container:b.container,element:this,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:85,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.combo.hideView(),a.fireEvent(BI.MonthDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.MonthDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.month_date_combo",BI.MonthDateCombo),BI.YearDateCombo=BI.inherit(BI.Trigger,{_defaultConfig:function(){return BI.extend(BI.YearDateCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-combo",min:"1900-01-01",max:"2099-12-31",behaviors:{},height:24,container:null})},_init:function(){BI.YearDateCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.trigger=BI.createWidget({type:"bi.date_triangle_trigger"}),this.popup=BI.createWidget({type:"bi.year_popup",behaviors:b.behaviors,min:b.min,max:b.max}),this.popup.on(BI.YearPopup.EVENT_CHANGE,function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo=BI.createWidget({type:"bi.combo",offsetStyle:"center",element:this,container:b.container,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,popup:{minWidth:100,stopPropagation:!1,el:this.popup}}),this.combo.on(BI.Combo.EVENT_CHANGE,function(){a.fireEvent(BI.YearDateCombo.EVENT_CHANGE)}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.doBehavior()})},setValue:function(a){this.trigger.setValue(a),this.popup.setValue(a)},getValue:function(){return this.popup.getValue()}}),BI.YearDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_date_combo",BI.YearDateCombo),BI.DatePicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DatePicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-picker",height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.DatePicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this._month=BI.getDate().getMonth()+1,this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){1===a._month?a.setValue({year:a.year.getValue()-1,month:12}):a.setValue({year:a.year.getValue(),month:a.month.getValue()-1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){12===a._month?a.setValue({year:a.year.getValue()+1,month:1}):a.setValue({year:a.year.getValue(),month:a.month.getValue()+1}),a.fireEvent(BI.DatePicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",behaviors:b.behaviors,min:b.min,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),this.month=BI.createWidget({type:"bi.month_date_combo",behaviors:b.behaviors}),this.month.on(BI.MonthDateCombo.EVENT_CHANGE,function(){a.setValue({year:a.year.getValue(),month:a.month.getValue()}),a.fireEvent(BI.DatePicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:24},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal",width:120,rgap:10,items:[{el:this.year,lgap:10},this.month]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:24}]}),this.setValue({year:this._year,month:this._month})},_checkLeftValid:function(){var a=this.options,b=!(1===this._month&&this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(12===this._month&&this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a.year,this._month=a.month,this.year.setValue(a.year),this.month.setValue(a.month),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return{year:this.year.getValue(),month:this.month.getValue()}}}),BI.DatePicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_picker",BI.DatePicker),BI.YearPicker=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.YearPicker.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-year-picker",behaviors:{},height:40,min:"1900-01-01",max:"2099-12-31"})},_init:function(){BI.YearPicker.superclass._init.apply(this,arguments);var a=this,b=this.options;this._year=BI.getDate().getFullYear(),this.left=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:25,height:25}),this.left.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()-1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.right=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:25,height:25}),this.right.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(a.year.getValue()+1),a.fireEvent(BI.YearPicker.EVENT_CHANGE),a._checkLeftValid(),a._checkRightValid()}),this.year=BI.createWidget({type:"bi.year_date_combo",min:b.min,behaviors:b.behaviors,max:b.max}),this.year.on(BI.YearDateCombo.EVENT_CHANGE,function(){a.setValue(a.year.getValue()),a.fireEvent(BI.YearPicker.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:{type:"bi.center_adapt",items:[this.left]},width:25},{type:"bi.center_adapt",items:[{el:{type:"bi.horizontal_float",width:50,items:[{el:this.year}]}}]},{el:{type:"bi.center_adapt",items:[this.right]},width:25}]}),this.setValue({year:this._year})},_checkLeftValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.min,"%Y-%X-%d").getFullYear());return this.left.setEnable(b),b},_checkRightValid:function(){var a=this.options,b=!(this._year===BI.parseDateTime(a.max,"%Y-%X-%d").getFullYear());return this.right.setEnable(b),b},setValue:function(a){this._year=a,this.year.setValue(a),this._checkLeftValid(),this._checkRightValid()},getValue:function(){return this.year.getValue()}}),BI.YearPicker.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_picker",BI.YearPicker),BI.DateCalendarPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.DateCalendarPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-calendar-popup",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!0},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_init:function(){BI.DateCalendarPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this._day=this.today.getDate(),this.selectedTime=b.selectedTime||{year:this._year,month:this._month,day:this._day},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.calendar=BI.createWidget({direction:"top",logic:{dynamic:!0},type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this),afterCardCreated:function(){},afterCardShow:function(){this.setValue(a.selectedTime)}}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){a.selectedTime=a.datePicker.getValue(),a.selectedTime.day=1,a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime))}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.calendar,left:5,right:5},{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},setValue:function(a){this.datePicker.setValue(a),this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},getValue:function(){return this.selectedTime}}),BI.DateCalendarPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.date_calendar_popup",BI.DateCalendarPopup),BI.YearPopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.YearPopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-year-popup",behaviors:{},min:"1900-01-01",max:"2099-12-31"})},_createYearCalendar:function(a){var b=this.options,c=this._year,d=BI.createWidget({type:"bi.year_calendar",behaviors:b.behaviors,min:b.min,max:b.max,logic:{dynamic:!0},year:c+12*a});return d.setValue(this._year),d},_init:function(){BI.YearPopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.selectedYear=this._year=BI.getDate().getFullYear();var c=BI.createWidget({type:"bi.icon_button",cls:"pre-page-h-font",width:24,height:24,value:-1}),d=BI.createWidget({type:"bi.icon_button",cls:"next-page-h-font",width:24,height:24,value:1});this.navigation=BI.createWidget({type:"bi.navigation",element:this,single:!0,logic:{dynamic:!0},tab:{cls:"year-popup-navigation bi-high-light bi-split-top",height:24,items:[c,d]},cardCreator:BI.bind(this._createYearCalendar,this),afterCardShow:function(){this.setValue(a.selectedYear);var b=this.getSelectedCard();c.setEnable(!b.isFrontYear()),d.setEnable(!b.isFinalYear())}}),this.navigation.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedYear=this.getValue(),a.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a.fireEvent(BI.YearPopup.EVENT_CHANGE,a.selectedYear)}),BI.isKey(b.value)&&this.setValue(b.value)},getValue:function(){return this.selectedYear},setValue:function(a){var b=this.options;a=BI.parseInt(a),BI.checkDateVoid(a,1,1,b.min,b.max)[0]?(a=BI.getDate().getFullYear(),this.selectedYear="",this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue("")):(this.selectedYear=a,this.navigation.setSelect(BI.YearCalendar.getPageByYear(a)),this.navigation.setValue(a))}}),BI.YearPopup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.year_popup",BI.YearPopup),BI.DateTriangleTrigger=BI.inherit(BI.Trigger,{_const:{height:24,iconWidth:12,iconHeight:12},_defaultConfig:function(){return BI.extend(BI.DateTriangleTrigger.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-triangle-trigger pull-down-ha-font cursor-pointer",height:24})},_init:function(){BI.DateTriangleTrigger.superclass._init.apply(this,arguments);var a=this.options,b=this._const;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"right",text:a.text,value:a.value,height:b.height}),BI.createWidget({type:"bi.vertical_adapt",element:this,items:[{el:this.text,rgap:5},{type:"bi.icon_label",width:16}]})},setValue:function(a){this.text.setValue(a)},getValue:function(){return this.text.getValue()},setText:function(a){this.text.setText(a)},getText:function(){return this.item.getText()},getKey:function(){}}),BI.shortcut("bi.date_triangle_trigger",BI.DateTriangleTrigger),BI.StaticDatePaneCard=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.StaticDatePaneCard.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-date-pane",min:"1900-01-01",max:"2099-12-31",selectedTime:null})},_init:function(){BI.StaticDatePaneCard.superclass._init.apply(this,arguments);var a=this,b=this.options;this.today=BI.getDate(),this._year=this.today.getFullYear(),this._month=this.today.getMonth()+1,this.selectedTime=b.selectedTime||{year:this._year,month:this._month},this.datePicker=BI.createWidget({type:"bi.date_picker",behaviors:b.behaviors,min:b.min,max:b.max}),this.datePicker.on(BI.DatePicker.EVENT_CHANGE,function(){var b=a.datePicker.getValue(),c=BI.getMonthDays(BI.getDate(b.year,b.month-1,1)),d=a.selectedTime.day||0;d>c&&(d=c),a.selectedTime={year:b.year,month:b.month},0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=a.calendar.getValue(),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.setValue(b.selectedTime),BI.createWidget({type:"bi.vtape",element:this,items:[{el:this.datePicker,height:40},this.calendar],hgap:10}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]})},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=a},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){this._setDatePicker(a),this._setCalendar(a)},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_pane_card",BI.StaticDatePaneCard),BI.DynamicDatePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDatePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDatePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDatePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDatePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDatePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDatePane.Static:return{type:"bi.static_date_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDatePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this}}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateCombo.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_pane",BI.DynamicDatePane),BI.extend(BI.DynamicDatePane,{Static:1,Dynamic:2}),BI.DateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:290,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},_defaultConfig:function(){return BI.extend(BI.DateTimeCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-combo bi-border",width:200,height:24})},_init:function(){BI.DateTimeCombo.superclass._init.apply(this,arguments);var a=this,b=this.options,c=BI.getDate();this.storeValue=BI.isNotNull(b.value)?b.value:{year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate(),hour:c.getHours(),minute:c.getMinutes(),second:c.getSeconds()},this.trigger=BI.createWidget({type:"bi.date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),this.popup=BI.createWidget({type:"bi.date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value}),a.setValue(this.storeValue),this.popup.on(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE,function(){a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CANCEL)}),this.popup.on(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE,function(){a.storeValue=a.popup.getValue(),a.setValue(a.storeValue),a.hidePopupView(),a.fireEvent(BI.DateTimeCombo.EVENT_CONFIRM)}),this.combo=BI.createWidget({type:"bi.combo",container:b.container,toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:this.trigger,adjustLength:this.constants.comboAdjustHeight,popup:{el:this.popup,width:this.constants.popupWidth,stopPropagation:!1},hideChecker:function(a){return 0===d.element.find(a.target).length}}),this.combo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW)});var d=BI.createWidget({type:"bi.icon_button",cls:"bi-trigger-icon-button date-font bi-border-right",width:24,height:24});d.on(BI.IconButton.EVENT_CHANGE,function(){a.combo.isViewVisible()||a.combo.showView()}),BI.createWidget({type:"bi.htape",element:this,items:[{type:"bi.absolute",items:[{el:this.combo,top:0,left:0,right:0,bottom:0},{el:d,top:0,right:0}]}]})},setValue:function(a){this.storeValue=a,this.popup.setValue(a),this.trigger.setValue(a)},getValue:function(){return this.storeValue},hidePopupView:function(){this.combo.hideView()}}),BI.DateTimeCombo.EVENT_CANCEL="EVENT_CANCEL",BI.DateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW="BI.DateTimeCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.date_time_combo",BI.DateTimeCombo),BI.DateTimePopup=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimePopup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-popup",width:268,height:374})},_init:function(){BI.DateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options;this.cancelButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top bi-border-right",shadow:!0,text:BI.i18nText("BI-Basic_Cancel")}),this.cancelButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE)}),this.okButton=BI.createWidget({type:"bi.text_button",forceCenter:!0,cls:"multidate-popup-button bi-border-top",shadow:!0,text:BI.i18nText("BI-Basic_OK")}),this.okButton.on(BI.TextButton.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE)}),this.dateCombo=BI.createWidget({type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max}),a.dateCombo.on(BI.DateCalendarPopup.EVENT_CHANGE,function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}),this.dateSelect=BI.createWidget({type:"bi.vertical_adapt",cls:"bi-border-top",items:[{type:"bi.label",text:BI.i18nText("BI-Basic_Time"),width:45},{type:"bi.date_time_select",max:23,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.hour=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.minute=b}},{type:"bi.label",text:":",width:15},{type:"bi.date_time_select",max:59,min:0,width:60,height:30,listeners:[{eventName:BI.DateTimeSelect.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DateTimePopup.CALENDAR_EVENT_CHANGE)}}],ref:function(b){a.second=b}}]}),this.setValue(b.value),this.dateButton=BI.createWidget({type:"bi.grid",items:[[this.cancelButton,this.okButton]]}),BI.createWidget({element:this,type:"bi.vtape",items:[{el:this.dateCombo},{el:this.dateSelect,height:50},{el:this.dateButton,height:30}]})},setValue:function(a){var b,c=a;BI.isNull(c)?(b=BI.getDate(),this.dateCombo.setValue({year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}),this.hour.setValue(b.getHours()),this.minute.setValue(b.getMinutes()),this.second.setValue(b.getSeconds())):(this.dateCombo.setValue({year:c.year,month:c.month,day:c.day}),this.hour.setValue(c.hour),this.minute.setValue(c.minute),this.second.setValue(c.second))},getValue:function(){return{year:this.dateCombo.getValue().year,month:this.dateCombo.getValue().month,day:this.dateCombo.getValue().day,hour:this.hour.getValue(),minute:this.minute.getValue(),second:this.second.getValue()}}}),BI.DateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DateTimePopup.BUTTON_CANCEL_EVENT_CHANGE="BUTTON_CANCEL_EVENT_CHANGE",BI.DateTimePopup.CALENDAR_EVENT_CHANGE="CALENDAR_EVENT_CHANGE",BI.shortcut("bi.date_time_popup",BI.DateTimePopup),BI.DateTimeSelect=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DateTimeSelect.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-date-time-select bi-border",max:23,min:0})},_init:function(){BI.DateTimeSelect.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.sign_editor",value:this._alertInEditorValue(b.min),allowBlank:!1,errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Please_Input_Natural_Number"):BI.i18nText("BI-Numerical_Interval_Input_Data")},validationChecker:function(a){return BI.isNaturalNumber(a)}}),this.editor.on(BI.TextEditor.EVENT_CONFIRM,function(){a._finetuning(0),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.topBtn=BI.createWidget({type:"bi.icon_button",cls:"column-pre-page-h-font top-button bi-border-left bi-border-bottom"}),this.topBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this.bottomBtn=BI.createWidget({type:"bi.icon_button",cls:"column-next-page-h-font bottom-button bi-border-left"}),this.bottomBtn.on(BI.IconButton.EVENT_CHANGE,function(){a._finetuning(-1),a.fireEvent(BI.DateTimeSelect.EVENT_CONFIRM)}),this._finetuning(0),BI.createWidget({type:"bi.htape",element:this,items:[this.editor,{el:{type:"bi.grid",columns:1,rows:2,items:[{column:0,row:0,el:this.topBtn},{column:0,row:1,el:this.bottomBtn}]},width:30}]})},_alertOutEditorValue:function(a){return a>this.options.max&&(a=this.options.min),athis.options.max&&(a=this.options.min),ac&&(d=c),a.selectedTime=BI.extend(a.selectedTime,{year:b.year,month:b.month,day:d}),0!==d&&(a.selectedTime.day=d),a.calendar.setSelect(BI.Calendar.getPageByDateJSON(a.selectedTime)),a.calendar.setValue(a.selectedTime),0!==d&&a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),this.calendar=BI.createWidget({direction:"custom",type:"bi.navigation",tab:this.datePicker,cardCreator:BI.bind(this._createNav,this)}),this.calendar.on(BI.Navigation.EVENT_CHANGE,function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.calendar.empty(),a.setValue(a.selectedTime),a.fireEvent(BI.DateCalendarPopup.EVENT_CHANGE)}),BI.createWidget({type:"bi.vtape",element:this,hgap:10,items:[{el:this.datePicker,height:40},this.calendar,{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){a.selectedTime=BI.extend(a.calendar.getValue(),a.timeSelect.getValue()),a.fireEvent("EVENT_CHANGE")}}]},height:40}]}),BI.createWidget({type:"bi.absolute",element:this,items:[{el:{type:"bi.layout",cls:"bi-split-top"},height:1,top:40,left:0,right:0}]}),this.setValue(b.selectedTime)},_createNav:function(a){var b=BI.Calendar.getDateJSONByPage(a),c=BI.createWidget({type:"bi.calendar",logic:{dynamic:!1},min:this.options.min,max:this.options.max,year:b.year,month:b.month,day:this.selectedTime.day});return c},_getNewCurrentDate:function(){var a=BI.getDate();return{year:a.getFullYear(),month:a.getMonth()+1}},_setCalenderValue:function(a){this.calendar.setSelect(BI.Calendar.getPageByDateJSON(a)),this.calendar.setValue(a),this.selectedTime=BI.extend({},this.timeSelect.getValue(),a)},_setDatePicker:function(a){BI.isNull(a)||BI.isNull(a.year)||BI.isNull(a.month)?this.datePicker.setValue(this._getNewCurrentDate()):this.datePicker.setValue(a)},_setCalendar:function(a){BI.isNull(a)||BI.isNull(a.day)?(this.calendar.empty(),this._setCalenderValue(this._getNewCurrentDate())):this._setCalenderValue(a)},setValue:function(a){a=a||{},this._setDatePicker(a),this._setCalendar(a),this.timeSelect.setValue({hour:a.hour,minute:a.minute,second:a.second})},getValue:function(){return this.selectedTime}}),BI.shortcut("bi.static_date_time_pane_card",BI.StaticDateTimePaneCard),BI.DynamicDateTimePane=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-pane"},render:function(){var a=this,b=this.options;return{type:"bi.vtape",items:[{el:{type:"bi.linear_segment",cls:"bi-split-bottom",height:30,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateTimePane.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateTimePane.Dynamic}],{textAlign:"center"}),listeners:[{eventName:BI.ButtonGroup.EVENT_CHANGE,action:function(){var b=this.getValue()[0];switch(a.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()});break;case BI.DynamicDateTimePane.Dynamic:a.dynamicPane.setValue({year:0})}}}],ref:function(){a.switcher=this}},height:30},{type:"bi.tab",ref:function(){a.dateTab=this},showIndex:BI.DynamicDateTimePane.Static,cardCreator:function(c){switch(c){case BI.DynamicDateTimePane.Static:return{type:"bi.static_date_time_pane_card",behaviors:b.behaviors,listeners:[{eventName:"EVENT_CHANGE",action:function(){a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.ymd=this}};case BI.DynamicDateTimePane.Dynamic:default:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._checkValue(a.getValue())&&a.fireEvent("EVENT_CHANGE")}}],ref:function(){a.dynamicPane=this; }}}}}]}},mounted:function(){this.setValue(this.options.value)},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){a=a||{};var b=a.type||BI.DynamicDateTimePane.Static,c=a.value||a;switch(this.switcher.setValue(b),this.dateTab.setSelect(b),b){case BI.DynamicDateTimePane.Dynamic:this.dynamicPane.setValue(c);break;case BI.DynamicDateTimePane.Static:default:if(this._checkValueValid(c)){var d=BI.getDate();this.ymd.setValue({year:d.getFullYear(),month:d.getMonth()+1})}else this.ymd.setValue(c)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.shortcut("bi.dynamic_date_time_pane",BI.DynamicDateTimePane),BI.extend(BI.DynamicDateTimePane,{Static:1,Dynamic:2}),BI.DownListCombo=BI.inherit(BI.Widget,{_defaultConfig:function(){return BI.extend(BI.DownListCombo.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-combo",height:24,items:[],adjustLength:0,direction:"bottom",trigger:"click",container:null,stopPropagation:!1,el:{}})},_init:function(){BI.DownListCombo.superclass._init.apply(this,arguments);var a=this,b=this.options;this.popupview=BI.createWidget({type:"bi.down_list_popup",items:b.items,chooseType:b.chooseType,value:b.value}),this.popupview.on(BI.DownListPopup.EVENT_CHANGE,function(b){a.fireEvent(BI.DownListCombo.EVENT_CHANGE,b),a.downlistcombo.hideView()}),this.popupview.on(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,function(b,c){a.fireEvent(BI.DownListCombo.EVENT_SON_VALUE_CHANGE,b,c),a.downlistcombo.hideView()}),this.downlistcombo=BI.createWidget({element:this,type:"bi.combo",trigger:b.trigger,isNeedAdjustWidth:!1,container:b.container,adjustLength:b.adjustLength,direction:b.direction,stopPropagation:b.stopPropagation,el:BI.createWidget(b.el,{type:"bi.icon_trigger",extraCls:b.iconCls?b.iconCls:"",width:b.width,height:b.height}),popup:{el:this.popupview,stopPropagation:!0,maxHeight:1e3,minWidth:140}}),this.downlistcombo.on(BI.Combo.EVENT_BEFORE_POPUPVIEW,function(){a.fireEvent(BI.DownListCombo.EVENT_BEFORE_POPUPVIEW)})},hideView:function(){this.downlistcombo.hideView()},showView:function(a){this.downlistcombo.showView(a)},populate:function(a){this.popupview.populate(a)},setValue:function(a){this.popupview.setValue(a)},getValue:function(){return this.popupview.getValue()}}),BI.DownListCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DownListCombo.EVENT_SON_VALUE_CHANGE="EVENT_SON_VALUE_CHANGE",BI.DownListCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.down_list_combo",BI.DownListCombo),BI.DownListGroup=BI.inherit(BI.Widget,{constants:{iconCls:"check-mark-ha-font"},_defaultConfig:function(){return BI.extend(BI.DownListGroup.superclass._defaultConfig.apply(this,arguments),{baseCls:"bi-down-list-group",items:[{el:{}}]})},_init:function(){BI.DownListGroup.superclass._init.apply(this,arguments);var a=this.options,b=this;this.downlistgroup=BI.createWidget({element:this,type:"bi.button_tree",items:a.items,chooseType:0,layouts:[{type:"bi.vertical",hgap:0,vgap:0}],value:a.value}),this.downlistgroup.on(BI.Controller.EVENT_CHANGE,function(a){b.fireEvent(BI.Controller.EVENT_CHANGE,arguments),a===BI.Events.CLICK&&b.fireEvent(BI.DownListGroup.EVENT_CHANGE,arguments)})},getValue:function(){return this.downlistgroup.getValue()},setValue:function(a){this.downlistgroup.setValue(a)}}),BI.DownListGroup.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group",BI.DownListGroup),BI.DownListItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-item bi-list-item-active",cls:"",height:24,logic:{dynamic:!0},selected:!1,iconHeight:null,iconWidth:null,textHgap:0,textVgap:0,textLgap:0,textRgap:0})},_init:function(){BI.DownListItem.superclass._init.apply(this,arguments);var a=this.options;this.text=BI.createWidget({type:"bi.label",cls:"list-item-text",textAlign:"left",hgap:a.textHgap,vgap:a.textVgap,lgap:a.textLgap,rgap:a.textRgap,text:a.text,value:a.value,keyword:a.keyword,height:a.height}),this.icon=BI.createWidget({type:"bi.center_adapt",width:36,height:a.height,items:[{el:{type:"bi.icon",width:a.iconWidth,height:a.iconHeight}}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic(BI.LogicFactory.createLogicTypeByDirection(BI.Direction.Left),BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection(BI.Direction.Left,this.icon,this.text)}))))},setValue:function(){this.isReadOnly()||this.text.setValue.apply(this.text,arguments)},getValue:function(){return this.text.getValue()},setText:function(){this.text.setText.apply(this.text,arguments)},getText:function(){return this.text.getText()},doClick:function(){BI.DownListItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListItem.EVENT_CHANGE,this.getValue(),this)},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},doHighLight:function(){this.text.doHighLight.apply(this.text,arguments)},unHighLight:function(){this.text.unHighLight.apply(this.text,arguments)}}),BI.DownListItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_item",BI.DownListItem),BI.DownListGroupItem=BI.inherit(BI.BasicButton,{_defaultConfig:function(){var a=BI.DownListGroupItem.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-down-list-group-item",logic:{dynamic:!1},iconCls1:"dot-e-font",iconCls2:"pull-right-e-font"})},_init:function(){BI.DownListGroupItem.superclass._init.apply(this,arguments);var a=this.options,b=this;this.text=BI.createWidget({type:"bi.label",cls:"list-group-item-text",textAlign:"left",text:a.text,value:a.value,height:a.height}),this.icon1=BI.createWidget({type:"bi.icon_button",cls:a.iconCls1,width:36,forceNotSelected:!0,selected:this._digest(a.value)}),this.icon2=BI.createWidget({type:"bi.icon_button",cls:a.iconCls2,width:24,forceNotSelected:!0});var c=BI.createWidget({type:"bi.layout",width:24});BI.createWidget({type:"bi.absolute",element:this,items:[{el:this.icon2,top:0,bottom:0,right:0}]}),BI.createWidget(BI.extend({element:this},BI.LogicFactory.createLogic("horizontal",BI.extend(a.logic,{items:BI.LogicFactory.createLogicItemsByDirection("left",this.icon1,this.text,c)})))),this.element.hover(function(){b.isEnabled()&&b.hover()},function(){b.isEnabled()&&b.dishover()})},_digest:function(a){var b=this.options;return a=BI.isArray(a)?a:[a],BI.any(a,function(a,c){return BI.contains(b.childValues,c)})},hover:function(){BI.DownListGroupItem.superclass.hover.apply(this,arguments),this.icon1.element.addClass("hover"),this.icon2.element.addClass("hover")},dishover:function(){BI.DownListGroupItem.superclass.dishover.apply(this,arguments),this.icon1.element.removeClass("hover"),this.icon2.element.removeClass("hover")},doClick:function(){BI.DownListGroupItem.superclass.doClick.apply(this,arguments),this.isValid()&&this.fireEvent(BI.DownListGroupItem.EVENT_CHANGE,this.getValue())},doRedMark:function(){this.text.doRedMark.apply(this.text,arguments)},unRedMark:function(){this.text.unRedMark.apply(this.text,arguments)},setValue:function(a){this.icon1.setSelected(this._digest(a))}}),BI.DownListGroupItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.down_list_group_item",BI.DownListGroupItem),BI.DownListPopup=BI.inherit(BI.Pane,{constants:{nextIcon:"pull-right-e-font",height:24,iconHeight:12,iconWidth:12,hgap:0,vgap:0,border:1},_defaultConfig:function(){var a=BI.DownListPopup.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-down-list-popup",items:[],chooseType:BI.Selection.Multi})},_init:function(){BI.DownListPopup.superclass._init.apply(this,arguments),this.singleValues=[],this.childValueMap={},this.fatherValueMap={},this.items=BI.deepClone(this.options.items);var a=this,b=this.options,c=this._createChildren(this.items);this.popup=BI.createWidget({type:"bi.button_tree",items:BI.createItems(c,{},{adjustLength:-2}),layouts:[{type:"bi.vertical",hgap:this.constants.hgap,vgap:this.constants.vgap}],value:this._digest(b.value),chooseType:b.chooseType}),this.popup.on(BI.ButtonTree.EVENT_CHANGE,function(b,c){var d=b;if(BI.isNotNull(a.childValueMap[b])?(d=a.childValueMap[b],a.fireEvent(BI.DownListPopup.EVENT_SON_VALUE_CHANGE,d,a.fatherValueMap[b])):a.fireEvent(BI.DownListPopup.EVENT_CHANGE,d,c),!BI.contains(a.singleValues,d)){var e=a.getValue(),f=[];BI.each(e,function(a,b){b.value!=d&&f.push(b)}),a.setValue(f)}}),BI.createWidget({type:"bi.vertical",element:this,items:[this.popup],vgap:5})},_createChildren:function(a){var b=this,c=[];return BI.each(a,function(d,e){var f={type:"bi.down_list_group",items:[]};if(BI.each(e,function(a,c){BI.isNotEmptyArray(c.children)&&!BI.isEmpty(c.el)?(c.type="bi.combo_group",c.cls="down-list-group",c.trigger="hover",c.isNeedAdjustWidth=!1,c.el.title=c.el.title||c.el.text,c.el.type="bi.down_list_group_item",c.el.logic={dynamic:!0},c.el.height=b.constants.height,c.el.iconCls2=b.constants.nextIcon,c.popup={lgap:1,el:{type:"bi.button_tree",chooseType:0,layouts:[{type:"bi.vertical"}]},innerVGap:5,maxHeight:378},c.el.childValues=[],BI.each(c.children,function(a,d){var e=BI.deepClone(c.el.value),f=BI.deepClone(d.value);b.singleValues.push(d.value),d.type="bi.down_list_item",d.extraCls=" child-down-list-item",d.title=d.title||d.text,d.textRgap=10,d.isNeedAdjustWidth=!1,d.logic={dynamic:!0},d.father=e,b.fatherValueMap[b._createChildValue(e,f)]=e,b.childValueMap[b._createChildValue(e,f)]=f,d.value=b._createChildValue(e,f),c.el.childValues.push(d.value)})):(c.type="bi.down_list_item",c.title=c.title||c.text,c.textRgap=10,c.isNeedAdjustWidth=!1,c.logic={dynamic:!0});var d={};d.el=c,f.items.push(d)}),b._isGroup(f.items)&&BI.each(f.items,function(a,c){b.singleValues.push(c.el.value)}),c.push(f),b._needSpliter(d,a.length)){var g=BI.createWidget({type:"bi.vertical",items:[{el:{type:"bi.layout",cls:"bi-down-list-spliter bi-split-top cursor-pointer",height:0}}],cls:"bi-down-list-spliter-container cursor-pointer",vgap:5,lgap:10,rgap:0});c.push(g)}}),c},_isGroup:function(a){return a.length>1},_needSpliter:function(a,b){return a0?1:0}},setValue:function(a){a=a||{},this.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT;var b=[],c=[];BI.isNotNull(a.year)&&(b.push(BI.DynamicDateCard.TYPE.YEAR),c.push(this._createValue(BI.DynamicDateCard.TYPE.YEAR,a.year))),BI.isNotNull(a.quarter)&&(b.push(BI.DynamicDateCard.TYPE.QUARTER),c.push(this._createValue(BI.DynamicDateCard.TYPE.QUARTER,a.quarter))),BI.isNotNull(a.month)&&(b.push(BI.DynamicDateCard.TYPE.MONTH),c.push(this._createValue(BI.DynamicDateCard.TYPE.MONTH,a.month))),BI.isNotNull(a.week)&&(b.push(BI.DynamicDateCard.TYPE.WEEK),c.push(this._createValue(BI.DynamicDateCard.TYPE.WEEK,a.week))),BI.isNotNull(a.day)&&(b.push(BI.DynamicDateCard.TYPE.DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.DAY,a.day))),BI.isNotNull(a.workDay)&&(b.push(BI.DynamicDateCard.TYPE.WORK_DAY),c.push(this._createValue(BI.DynamicDateCard.TYPE.WORK_DAY,a.workDay))),this.checkgroup.setValue(b),this.workDayBox.setSelected(BI.isNotNull(a.workDay)),this.resultPane.populate(this._getParamJson(c,a.position))},getValue:function(){var a=this,b={},c=this.checkgroup.getValue(),d=this.resultPane.getAllButtons();if(0!==c.length&&BI.each(d,function(c,d){var e=d.getValue();switch(e.dateType){case BI.DynamicDateCard.TYPE.YEAR:b.year=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.QUARTER:b.quarter=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.MONTH:b.month=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.WEEK:b.week=0===e.offset?-e.value:e.value;break;case BI.DynamicDateCard.TYPE.DAY:b.day=0===e.offset?-e.value:e.value}BI.isNull(e.dateType)&&(b.position=a.position||BI.DynamicDateCard.OFFSET.CURRENT)}),this.workDayBox.isSelected()){var e=d[0].getValue();b.workDay=0===e.offset?-e.value:e.value}return b}}),BI.shortcut("bi.dynamic_date_card",BI.DynamicDateCard),BI.extend(BI.DynamicDateCard,{TYPE:{YEAR:1,QUARTER:2,MONTH:3,WEEK:4,DAY:5,WORK_DAY:6},OFFSET:{CURRENT:1,BEGIN:2,END:3}}),BI.DynamicDateCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow bi-border-radius",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate()}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDatePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW)}}]},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},_defaultState:function(){},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()}}),BI.DynamicDateCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW="BI.DynamicDateCombo.EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_combo",BI.DynamicDateCombo),BI.extend(BI.DynamicDateCombo,{Static:1,Dynamic:2}),BI.DynamicDateParamItem=BI.inherit(BI.Widget,{props:{baseCls:"bi-dynamic-date-param-item",dateType:BI.DynamicDateCard.TYPE.YEAR,value:0,offset:0,height:24},render:function(){var a=this,b=this.options;return{type:"bi.htape",items:[{el:{type:"bi.sign_editor",cls:"bi-border",height:22,validationChecker:function(a){return BI.isNaturalNumber(a)},value:b.value,ref:function(){a.editor=this},errorText:function(a){return BI.isEmptyString(a)?BI.i18nText("BI-Basic_Please_Input_Content"):BI.i18nText("BI-Please_Input_Natural_Number")},allowBlank:!1,listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]},width:60},{el:{type:"bi.label",height:24,text:this._getText()},width:b.dateType===BI.DynamicDateCard.TYPE.WORK_DAY?60:20},{type:"bi.text_value_combo",height:24,items:[{text:BI.i18nText("BI-Basic_Front"),value:0},{text:BI.i18nText("BI-Basic_Behind"),value:1}],ref:function(){a.offsetCombo=this},container:null,value:b.offset,listeners:[{eventName:BI.TextValueCombo.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateParamItem.EVENT_CHANGE)}}]}]}},_getText:function(){var a="";switch(this.options.dateType){case BI.DynamicDateCard.TYPE.YEAR:a=BI.i18nText("BI-Basic_Year");break;case BI.DynamicDateCard.TYPE.QUARTER:a=BI.i18nText("BI-Basic_Single_Quarter");break;case BI.DynamicDateCard.TYPE.MONTH:a=BI.i18nText("BI-Basic_Month");break;case BI.DynamicDateCard.TYPE.WEEK:a=BI.i18nText("BI-Basic_Week");break;case BI.DynamicDateCard.TYPE.DAY:a=BI.i18nText("BI-Basic_Day");break;case BI.DynamicDateCard.TYPE.WORK_DAY:default:a=BI.i18nText("BI-Basic_Work_Day")}return a},setValue:function(a){a=a||{},a.value=a.value||0,a.offset=a.offset||0,this.editor.setValue(a.value),this.offsetCombo.setValue(a.offset)},getValue:function(){return{dateType:this.options.dateType,value:this.editor.getValue(),offset:this.offsetCombo.getValue()[0]}}}),BI.DynamicDateParamItem.EVENT_CHANGE="EVENT_CHANGE",BI.shortcut("bi.dynamic_date_param_item",BI.DynamicDateParamItem),BI.DynamicDatePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-popup",width:248,height:344},_init:function(){BI.DynamicDatePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",shadow:!0,text:BI.i18nText("BI-Basic_Clear"),textHeight:c.buttonHeight-1,listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",shadow:!0,textHeight:c.buttonHeight-1,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,listeners:[{eventName:BI.DateCalendarPopup.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDatePopup.EVENT_CHANGE)}}],ref:function(){a.ymd=this}}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){return{type:this.dateTab.getSelect(),value:this.dateTab.getValue()}}}),BI.DynamicDatePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDatePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_popup",BI.DynamicDatePopup),BI.DynamicDateTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Date_Trigger_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text"); },title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.getDate();f=BI.DynamicDateHelper.getCalculation(d);var g=BI.print(f,"%Y-%x-%e");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day),"%Y-%X-%d")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split("-");a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2]}}}a.fireEvent(BI.DynamicDateTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_SPACE,function(){a.editor.isValid()&&a.editor.blur()}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>=0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day),"%Y-%X-%d");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue}}),BI.DynamicDateTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTrigger.EVENT_START="EVENT_START",BI.DynamicDateTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_trigger",BI.DynamicDateTrigger),BI.DynamicDateTimeCombo=BI.inherit(BI.Single,{constants:{popupHeight:259,popupWidth:270,comboAdjustHeight:1,border:1,DATE_MIN_VALUE:"1900-01-01",DATE_MAX_VALUE:"2099-12-31"},props:{baseCls:"bi-dynamic-date-combo bi-border bi-focus-shadow",height:22},render:function(){var a=this,b=this.options;this.storeTriggerValue="";var c=BI.getDate();return this.storeValue=b.value,{type:"bi.htape",items:[{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-change-h-font",width:b.height,height:b.height,ref:function(){a.changeIcon=this}},width:b.height},{type:"bi.absolute",items:[{el:{type:"bi.combo",container:b.container,ref:function(){a.combo=this},toggle:!1,isNeedAdjustHeight:!1,isNeedAdjustWidth:!1,el:{type:"bi.dynamic_date_time_trigger",min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,height:b.height,value:b.value,ref:function(){a.trigger=this},listeners:[{eventName:BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN,action:function(){a.combo.isViewVisible()&&a.combo.hideView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_STOP,action:function(){a.combo.isViewVisible()||a.combo.showView()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK,action:function(){a.combo.toggle()}},{eventName:BI.DynamicDateTimeTrigger.EVENT_FOCUS,action:function(){a.storeTriggerValue=a.trigger.getKey(),a.combo.isViewVisible()||a.combo.showView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_FOCUS)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_ERROR,action:function(){a.storeValue={type:BI.DynamicDateTimeCombo.Static,value:{year:c.getFullYear(),month:c.getMonth()+1}},a.fireEvent(BI.DynamicDateTimeCombo.EVENT_ERROR)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_VALID,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_VALID)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CHANGE)}},{eventName:BI.DynamicDateTimeTrigger.EVENT_CONFIRM,action:function(){if(!a.combo.isViewVisible()){var b=a.storeTriggerValue,c=a.trigger.getKey();BI.isNotEmptyString(c)&&!BI.isEqual(c,b)?(a.storeValue=a.trigger.getValue(),a.setValue(a.trigger.getValue())):BI.isEmptyString(c)&&(a.storeValue=null,a.trigger.setValue()),a._checkDynamicValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}}]},adjustLength:this.constants.comboAdjustHeight,popup:{el:{type:"bi.dynamic_date_time_popup",behaviors:b.behaviors,min:this.constants.DATE_MIN_VALUE,max:this.constants.DATE_MAX_VALUE,value:b.value,ref:function(){a.popup=this},listeners:[{eventName:BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE,action:function(){a.setValue(),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE,action:function(){var b=BI.getDate();a.setValue({type:BI.DynamicDateTimeCombo.Static,value:{year:b.getFullYear(),month:b.getMonth()+1,day:b.getDate(),hour:0,minute:0,second:0}}),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE,action:function(){var b=a.popup.getValue();a._checkValue(b)&&a.setValue(b),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}},{eventName:BI.DynamicDateTimePopup.EVENT_CHANGE,action:function(){a.setValue(a.popup.getValue()),a.combo.hideView(),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_CONFIRM)}}]},stopPropagation:!1},listeners:[{eventName:BI.Combo.EVENT_BEFORE_POPUPVIEW,action:function(){a.popup.setValue(a.storeValue),a.fireEvent(BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW)}}],hideChecker:function(b){return 0===a.triggerBtn.element.find(b.target).length}},top:0,left:0,right:0,bottom:0},{el:{type:"bi.icon_button",cls:"bi-trigger-icon-button date-font",width:b.height,height:b.height,listeners:[{eventName:BI.IconButton.EVENT_CHANGE,action:function(){a.combo.isViewVisible()||a.combo.showView()}}],ref:function(){a.triggerBtn=this}},top:0,right:0}]}],ref:function(b){a.comboWrapper=b}}},mounted:function(){this._checkDynamicValue(this.storeValue)},_checkDynamicValue:function(a){var b=this.options,c=null;switch(BI.isNotNull(a)&&(c=a.type),c){case BI.DynamicDateTimeCombo.Dynamic:this.changeIcon.setVisible(!0),this.comboWrapper.attr("items")[0].width=b.height,this.comboWrapper.resize();break;default:this.comboWrapper.attr("items")[0].width=0,this.comboWrapper.resize(),this.changeIcon.setVisible(!1)}},_checkValue:function(a){switch(a.type){case BI.DynamicDateCombo.Dynamic:return BI.isNotEmptyObject(a.value);case BI.DynamicDateCombo.Static:default:return!0}},setValue:function(a){this.storeValue=a,this.trigger.setValue(a),this._checkDynamicValue(a)},getValue:function(){return this.storeValue},getKey:function(){return this.trigger.getKey()},hidePopupView:function(){this.combo.hideView()},isValid:function(){return this.trigger.isValid()}}),BI.DynamicDateTimeCombo.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeCombo.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeCombo.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeCombo.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeCombo.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeCombo.EVENT_BEFORE_POPUPVIEW="EVENT_BEFORE_POPUPVIEW",BI.shortcut("bi.dynamic_date_time_combo",BI.DynamicDateTimeCombo),BI.extend(BI.DynamicDateTimeCombo,{Static:1,Dynamic:2}),BI.DynamicDateTimePopup=BI.inherit(BI.Widget,{constants:{tabHeight:30,buttonHeight:24},props:{baseCls:"bi-dynamic-date-time-popup",width:248,height:385},_init:function(){BI.DynamicDateTimePopup.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this.constants;this.storeValue={type:BI.DynamicDateCombo.Static},BI.createWidget({element:this,type:"bi.vtape",items:[{el:this._getTabJson()},{el:{type:"bi.grid",items:[[{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_Clear"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-split-left bi-split-right bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Multi_Date_Today"),ref:function(){a.textButton=this},listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE)}}]},{type:"bi.text_button",forceCenter:!0,cls:"bi-high-light bi-split-top",textHeight:c.buttonHeight-1,shadow:!0,text:BI.i18nText("BI-Basic_OK"),listeners:[{eventName:BI.TextButton.EVENT_CHANGE,action:function(){a.fireEvent(BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE)}}]}]]},height:24}]}),this.setValue(b.value)},_getTabJson:function(){var a=this,b=this.options;return{type:"bi.tab",ref:function(){a.dateTab=this},tab:{type:"bi.linear_segment",cls:"bi-split-bottom",height:this.constants.tabHeight,items:BI.createItems([{text:BI.i18nText("BI-Multi_Date_YMD"),value:BI.DynamicDateCombo.Static},{text:BI.i18nText("BI-Basic_Dynamic_Title"),value:BI.DynamicDateCombo.Dynamic}],{textAlign:"center"})},cardCreator:function(c){switch(c){case BI.DynamicDateCombo.Dynamic:return{type:"bi.dynamic_date_card",listeners:[{eventName:"EVENT_CHANGE",action:function(){a._setInnerValue(a.year,c)}}],ref:function(){a.dynamicPane=this}};case BI.DynamicDateCombo.Static:default:return{type:"bi.vtape",items:[{type:"bi.date_calendar_popup",behaviors:b.behaviors,min:a.options.min,max:a.options.max,ref:function(){a.ymd=this}},{el:{type:"bi.dynamic_date_time_select",ref:function(){a.timeSelect=this},listeners:[{eventName:BI.DynamicDateTimeSelect.EVENT_CONFIRM,action:function(){}}]},height:40}]}}},listeners:[{eventName:BI.Tab.EVENT_CHANGE,action:function(){var b=a.dateTab.getSelect();switch(b){case BI.DynamicDateCombo.Static:var c=BI.DynamicDateHelper.getCalculation(a.dynamicPane.getValue());a.ymd.setValue({year:c.getFullYear(),month:c.getMonth()+1,day:c.getDate()}),a.timeSelect.setValue(),a._setInnerValue();break;case BI.DynamicDateCombo.Dynamic:default:a.storeValue&&a.storeValue.type===BI.DynamicDateCombo.Dynamic?a.dynamicPane.setValue(a.storeValue.value):a.dynamicPane.setValue({year:0}),a._setInnerValue()}}}]}},_setInnerValue:function(){if(this.dateTab.getSelect()===BI.DynamicDateCombo.Static)this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today")),this.textButton.setEnable(!0);else{var a=BI.DynamicDateHelper.getCalculation(this.dynamicPane.getValue());a=BI.print(a,"%Y-%x-%e"),this.textButton.setValue(a),this.textButton.setEnable(!1)}},_checkValueValid:function(a){return BI.isNull(a)||BI.isEmptyObject(a)||BI.isEmptyString(a)},setValue:function(a){this.storeValue=a;var b,c,d=this;switch(a=a||{},b=a.type||BI.DynamicDateCombo.Static,c=a.value||a,this.dateTab.setSelect(b),b){case BI.DynamicDateCombo.Dynamic:this.dynamicPane.setValue(c),d._setInnerValue();break;case BI.DynamicDateCombo.Static:default:if(this._checkValueValid(c)){var e=BI.getDate();this.ymd.setValue({year:e.getFullYear(),month:e.getMonth()+1,day:e.getDate()}),this.timeSelect.setValue(),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"))}else this.ymd.setValue(c),this.timeSelect.setValue({hour:c.hour,minute:c.minute,second:c.second}),this.textButton.setValue(BI.i18nText("BI-Multi_Date_Today"));this.textButton.setEnable(!0)}},getValue:function(){var a=this.dateTab.getSelect();return{type:a,value:a===BI.DynamicDateTimeCombo.Static?BI.extend(this.ymd.getValue(),this.timeSelect.getValue()):this.dynamicPane.getValue()}}}),BI.DynamicDateTimePopup.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_OK_EVENT_CHANGE="BUTTON_OK_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_lABEL_EVENT_CHANGE="BUTTON_lABEL_EVENT_CHANGE",BI.DynamicDateTimePopup.BUTTON_CLEAR_EVENT_CHANGE="BUTTON_CLEAR_EVENT_CHANGE",BI.shortcut("bi.dynamic_date_time_popup",BI.DynamicDateTimePopup),BI.DynamicDateTimeSelect=BI.inherit(BI.Widget,{props:{baseCls:"bi-date-time-select bi-split-top"},render:function(){var a=this;return{type:"bi.center_adapt",items:[{type:"bi.vertical_adapt",items:[{el:{type:"bi.number_editor",ref:function(){a.hour=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<24},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-23"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkHour(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.HOUR);this.setValue(b)}}],width:60,height:24},lgap:14},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.minute=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkMinute(b),this.setValue(a._formatValueToDoubleDigit(b),BI.DynamicDateTimeSelect.MINUTE),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}},{eventName:BI.SignEditor.EVENT_CHANGE,action:function(){var b=a._autoSwitch(this.getValue(),BI.DynamicDateTimeSelect.MINUTE);this.setValue(b)}}],width:60,height:24},{type:"bi.label",text:":",width:20},{type:"bi.number_editor",ref:function(){a.second=this},validationChecker:function(a){return BI.isNaturalNumber(a)&&BI.parseInt(a)<60},errorText:function(a){return BI.isNumeric(a)?BI.i18nText("BI-Basic_Input_From_To_Number",'"00-59"'):BI.i18nText("BI-Numerical_Interval_Input_Data")},listeners:[{eventName:BI.SignEditor.EVENT_CONFIRM,action:function(){var b=this.getValue();a._checkSecond(b),this.setValue(a._formatValueToDoubleDigit(b)),a.fireEvent(BI.DynamicDateTimeSelect.EVENT_CONFIRM)}}],width:60,height:24}]}]}},_checkBorder:function(a){a=a||{},this._checkHour(a.hour),this._checkMinute(a.minute),this._checkSecond(a.second)},_checkHour:function(a){this.hour.setDownEnable(BI.parseInt(a)>0),this.hour.setUpEnable(BI.parseInt(a)<23)},_checkMinute:function(a){this.minute.setDownEnable(BI.parseInt(a)>0),this.minute.setUpEnable(BI.parseInt(a)<59)},_checkSecond:function(a){this.second.setDownEnable(BI.parseInt(a)>0),this.second.setUpEnable(BI.parseInt(a)<59)},_autoSwitch:function(a,b){var c=0,d=a+"";switch(b){case BI.DynamicDateTimeSelect.HOUR:c=2;break;case BI.DynamicDateTimeSelect.MINUTE:c=5}return 1===d.length&&BI.parseInt(d)>c&&(d="0"+d),2===d.length&&(b===BI.DynamicDateTimeSelect.HOUR?this.minute.focus():this.second.focus()),d},_formatValueToDoubleDigit:function(a){(BI.isNull(a)||BI.isEmptyString(a))&&(a=0);var b=BI.parseInt(a);return b<10&&(b="0"+b),b},_assertValue:function(a){return a=a||{},a.hour=this._formatValueToDoubleDigit(a.hour)||"00",a.minute=this._formatValueToDoubleDigit(a.minute)||"00",a.second=this._formatValueToDoubleDigit(a.second)||"00",a},getValue:function(){return{hour:BI.parseInt(this.hour.getValue()),minute:BI.parseInt(this.minute.getValue()),second:BI.parseInt(this.second.getValue())}},setValue:function(a){a=this._assertValue(a),this.hour.setValue(a.hour),this.minute.setValue(a.minute),this.second.setValue(a.second),this._checkBorder(a)}}),BI.DynamicDateTimeSelect.EVENT_CONFIRM="EVENT_CONFIRM",BI.shortcut("bi.dynamic_date_time_select",BI.DynamicDateTimeSelect),BI.extend(BI.DynamicDateTimeSelect,{HOUR:1,MINUTE:2}),BI.DynamicDateTimeTrigger=BI.inherit(BI.Trigger,{_const:{hgap:4,vgap:2,yearLength:4,yearMonthLength:6,yearFullMonthLength:7},props:{extraCls:"bi-date-time-trigger",min:"1900-01-01",max:"2099-12-31",height:24},_init:function(){BI.DynamicDateTimeTrigger.superclass._init.apply(this,arguments);var a=this,b=this.options,c=this._const;this.storeTriggerValue="",this.editor=BI.createWidget({type:"bi.sign_editor",height:b.height,validationChecker:function(b){var c=b.match(/\d+/g);return a._autoAppend(b,c),a._dateCheck(b)&&BI.checkDateLegal(b)&&a._checkVoid({year:0|c[0],month:0|c[1],day:0|c[2]})},quitChecker:function(){return!1},hgap:c.hgap,vgap:c.vgap,allowBlank:!0,watermark:BI.i18nText("BI-Basic_Unrestricted"),errorText:function(){return a.editor.isEditing()?BI.i18nText("BI-Basic_Date_Time_Error_Text"):BI.i18nText("BI-Year_Trigger_Invalid_Text")},title:function(){var b=a.storeValue||{},c=b.type||BI.DynamicDateCombo.Static,d=b.value;switch(c){case BI.DynamicDateCombo.Dynamic:var e=a._getText(d),f=BI.DynamicDateHelper.getCalculation(d),g=BI.print(f,"%Y-%x-%e %H:%M:%S");return BI.isEmptyString(e)?g:e+":"+g;case BI.DynamicDateCombo.Static:default:return BI.isNull(d)||BI.isNull(d.day)?"":BI.print(BI.getDate(d.year,d.month-1,d.day,d.hour||0,d.minute||0,d.second||0),"%Y-%X-%d %H:%M:%S")}}}),this.editor.on(BI.SignEditor.EVENT_KEY_DOWN,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN)}),this.editor.on(BI.SignEditor.EVENT_FOCUS,function(){a.storeTriggerValue=a.getKey(),a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_FOCUS)}),this.editor.on(BI.SignEditor.EVENT_STOP,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_STOP)}),this.editor.on(BI.SignEditor.EVENT_VALID,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_VALID)}),this.editor.on(BI.SignEditor.EVENT_ERROR,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_ERROR)}),this.editor.on(BI.SignEditor.EVENT_CONFIRM,function(){var b=a.editor.getValue();if(BI.isNotNull(b)&&a.editor.setState(b),BI.isNotEmptyString(b)&&!BI.isEqual(a.storeTriggerValue,a.getKey())){var c=b.split(/-|\s|:/);a.storeValue={type:BI.DynamicDateCombo.Static,value:{year:0|c[0],month:0|c[1],day:0|c[2],hour:0|c[3],minute:0|c[4],second:0|c[5]}}}a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CONFIRM)}),this.editor.on(BI.SignEditor.EVENT_START,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_START)}),this.editor.on(BI.SignEditor.EVENT_CHANGE,function(){a.fireEvent(BI.DynamicDateTimeTrigger.EVENT_CHANGE)}),BI.createWidget({type:"bi.htape",element:this,items:[{el:this.editor},{el:BI.createWidget(),width:24}]}),this.setValue(b.value)},_dateCheck:function(a){return BI.print(BI.parseDateTime(a,"%Y-%x-%d %H:%M:%S"),"%Y-%x-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d %H:%M:%S"),"%Y-%X-%d %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e %H:%M:%S"),"%Y-%x-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e %H:%M:%S"),"%Y-%X-%e %H:%M:%S")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%d"),"%Y-%x-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d")===a||BI.print(BI.parseDateTime(a,"%Y-%x-%e"),"%Y-%x-%e")===a||BI.print(BI.parseDateTime(a,"%Y-%X-%e"),"%Y-%X-%e")===a},_checkVoid:function(a){return!BI.checkDateVoid(a.year,a.month,a.day,this.options.min,this.options.max)[0]},_autoAppend:function(a,b){if(BI.isNotNull(b)&&BI.checkDateLegal(a))switch(a.length){case this._const.yearLength:this._yearCheck(a)&&this.editor.setValue(a+"-");break;case this._const.yearMonthLength:case this._const.yearFullMonthLength:var c=a.split("-")[1];(BI.isNotNull(c)&&2===c.length||this._monthCheck(a))&&this.editor.setValue(a+"-")}},_yearCheck:function(a){var b=BI.print(BI.parseDateTime(a,"%Y-%X-%d"),"%Y-%X-%d");return BI.print(BI.parseDateTime(a,"%Y"),"%Y")===a&&b>=this.options.min&&b<=this.options.max},_monthCheck:function(a){var b=BI.parseDateTime(a,"%Y-%X-%d"),c=BI.print(b,"%Y-%X-%d");return b.getMonth()>0&&(BI.print(BI.parseDateTime(a,"%Y-%X"),"%Y-%X")===a||BI.print(BI.parseDateTime(a,"%Y-%x"),"%Y-%x")===a)&&c>=this.options.min&&c<=this.options.max},_setInnerValue:function(a){var b=BI.print(a,"%Y-%X-%e %H:%M:%S");this.editor.setState(b),this.editor.setValue(b)},_getText:function(a){function b(a,b){switch(b){case BI.DynamicDateCard.OFFSET.BEGIN:return a+BI.i18nText("BI-Basic_Begin_Start");case BI.DynamicDateCard.OFFSET.END:return a+BI.i18nText("BI-Basic_End_Stop");case BI.DynamicDateCard.OFFSET.CURRENT:default:return BI.i18nText("BI-Basic_Current_Day")}}var c="",d="";return BI.isNotNull(a.year)&&(0!==BI.parseInt(a.year)&&(c+=Math.abs(a.year)+BI.i18nText("BI-Basic_Year")+(a.year<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Year"),a.position)),BI.isNotNull(a.quarter)&&(0!==BI.parseInt(a.quarter)&&(c+=Math.abs(a.quarter)+BI.i18nText("BI-Basic_Single_Quarter")+(a.quarter<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Single_Quarter"),a.position)),BI.isNotNull(a.month)&&(0!==BI.parseInt(a.month)&&(c+=Math.abs(a.month)+BI.i18nText("BI-Basic_Month")+(a.month<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Month"),a.position)),BI.isNotNull(a.week)&&(0!==BI.parseInt(a.week)&&(c+=Math.abs(a.week)+BI.i18nText("BI-Basic_Week")+(a.week<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=b(BI.i18nText("BI-Basic_Week"),a.position)),BI.isNotNull(a.day)&&(0!==BI.parseInt(a.day)&&(c+=Math.abs(a.day)+BI.i18nText("BI-Basic_Day")+(a.day<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),d=1===BI.size(a)?b(BI.i18nText("BI-Basic_Month"),a.position):""),BI.isNotNull(a.workDay)&&0!==BI.parseInt(a.workDay)&&(c+=Math.abs(a.workDay)+BI.i18nText("BI-Basic_Work_Day")+(a.workDay<0?BI.i18nText("BI-Basic_Front"):BI.i18nText("BI-Basic_Behind"))),c+d},setValue:function(a){var b,c,d=BI.getDate();switch(this.storeValue=a,BI.isNotNull(a)&&(b=a.type||BI.DynamicDateCombo.Static,c=a.value||a),b){case BI.DynamicDateCombo.Dynamic:var e=this._getText(c);d=BI.DynamicDateHelper.getCalculation(c),this._setInnerValue(d,e);break;case BI.DynamicDateCombo.Static:default:if(BI.isNull(c)||BI.isNull(c.day))this.editor.setState(""),this.editor.setValue("");else{var f=BI.print(BI.getDate(c.year,c.month-1,c.day,c.hour||0,c.minute||0,c.second||0),"%Y-%X-%d %H:%M:%S");this.editor.setState(f),this.editor.setValue(f)}}},getKey:function(){return this.editor.getValue()},getValue:function(){return this.storeValue},isValid:function(){return this.editor.isValid()}}),BI.DynamicDateTimeTrigger.EVENT_FOCUS="EVENT_FOCUS",BI.DynamicDateTimeTrigger.EVENT_START="EVENT_START",BI.DynamicDateTimeTrigger.EVENT_STOP="EVENT_STOP",BI.DynamicDateTimeTrigger.EVENT_CONFIRM="EVENT_CONFIRM",BI.DynamicDateTimeTrigger.EVENT_CHANGE="EVENT_CHANGE",BI.DynamicDateTimeTrigger.EVENT_VALID="EVENT_VALID",BI.DynamicDateTimeTrigger.EVENT_ERROR="EVENT_ERROR",BI.DynamicDateTimeTrigger.EVENT_TRIGGER_CLICK="EVENT_TRIGGER_CLICK",BI.DynamicDateTimeTrigger.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.shortcut("bi.dynamic_date_time_trigger",BI.DynamicDateTimeTrigger),BI.SearchEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.SearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:"bi-search-editor bi-border bi-focus-shadow",height:24,errorText:"",watermark:BI.i18nText("BI-Basic_Search"),validationChecker:BI.emptyFn,quitChecker:BI.emptyFn})},_init:function(){this.options.height-=2,BI.SearchEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;this.editor=BI.createWidget({type:"bi.editor",height:b.height,watermark:b.watermark,allowBlank:!0,hgap:1,errorText:b.errorText,validationChecker:b.validationChecker,quitChecker:b.quitChecker}),this.clear=BI.createWidget({type:"bi.icon_button",stopEvent:!0,cls:"close-font"}),this.clear.on(BI.IconButton.EVENT_CHANGE,function(){a.setValue(""),a.fireEvent(BI.Controller.EVENT_CHANGE,BI.Events.STOPEDIT),a.fireEvent(BI.SearchEditor.EVENT_CLEAR)}),BI.createWidget({element:this,type:"bi.htape",items:[{el:{type:"bi.icon_label",cls:"search-font"},width:24},{el:a.editor},{el:this.clear,width:24}]}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.SearchEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.SearchEditor.EVENT_BLUR)}),this.editor.on(BI.Editor.EVENT_CLICK,function(){a.fireEvent(BI.SearchEditor.EVENT_CLICK)}),this.editor.on(BI.Editor.EVENT_CHANGE,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_CHANGE)}),this.editor.on(BI.Editor.EVENT_KEY_DOWN,function(b){a.fireEvent(BI.SearchEditor.EVENT_KEY_DOWN,b)}),this.editor.on(BI.Editor.EVENT_SPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_SPACE)}),this.editor.on(BI.Editor.EVENT_BACKSPACE,function(){a.fireEvent(BI.SearchEditor.EVENT_BACKSPACE)}),this.editor.on(BI.Editor.EVENT_VALID,function(){a.fireEvent(BI.SearchEditor.EVENT_VALID)}),this.editor.on(BI.Editor.EVENT_ERROR,function(){a.fireEvent(BI.SearchEditor.EVENT_ERROR)}),this.editor.on(BI.Editor.EVENT_ENTER,function(){a.fireEvent(BI.SearchEditor.EVENT_ENTER)}),this.editor.on(BI.Editor.EVENT_RESTRICT,function(){a.fireEvent(BI.SearchEditor.EVENT_RESTRICT)}),this.editor.on(BI.Editor.EVENT_EMPTY,function(){a._checkClear(),a.fireEvent(BI.SearchEditor.EVENT_EMPTY)}),this.editor.on(BI.Editor.EVENT_REMOVE,function(){a.fireEvent(BI.SearchEditor.EVENT_REMOVE)}),this.editor.on(BI.Editor.EVENT_CONFIRM,function(){a.fireEvent(BI.SearchEditor.EVENT_CONFIRM)}),this.editor.on(BI.Editor.EVENT_START,function(){a.fireEvent(BI.SearchEditor.EVENT_START)}),this.editor.on(BI.Editor.EVENT_PAUSE,function(){a.fireEvent(BI.SearchEditor.EVENT_PAUSE)}),this.editor.on(BI.Editor.EVENT_STOP,function(){a.fireEvent(BI.SearchEditor.EVENT_STOP)}),this.clear.invisible()},_checkClear:function(){this.getValue()?this.clear.visible():this.clear.invisible()},focus:function(){this.editor.focus()},blur:function(){this.editor.blur()},getValue:function(){if(this.isValid()){var a=this.editor.getValue().match(/[\S]+/g);return BI.isNull(a)?"":a[a.length-1]}},getKeywords:function(){var a=this.editor.getValue(),b=a.match(/[\S]+/g);return BI.isEndWithBlank(a)?b.concat([" "]):b},getLastValidValue:function(){return this.editor.getLastValidValue()},setValue:function(a){this.editor.setValue(a),BI.isKey(a)&&this.clear.visible()},isEditing:function(){return this.editor.isEditing()},isValid:function(){return this.editor.isValid()}}),BI.SearchEditor.EVENT_CHANGE="EVENT_CHANGE",BI.SearchEditor.EVENT_FOCUS="EVENT_FOCUS",BI.SearchEditor.EVENT_BLUR="EVENT_BLUR",BI.SearchEditor.EVENT_CLICK="EVENT_CLICK",BI.SearchEditor.EVENT_KEY_DOWN="EVENT_KEY_DOWN",BI.SearchEditor.EVENT_SPACE="EVENT_SPACE",BI.SearchEditor.EVENT_BACKSPACE="EVENT_BACKSPACE",BI.SearchEditor.EVENT_CLEAR="EVENT_CLEAR",BI.SearchEditor.EVENT_START="EVENT_START",BI.SearchEditor.EVENT_PAUSE="EVENT_PAUSE",BI.SearchEditor.EVENT_STOP="EVENT_STOP",BI.SearchEditor.EVENT_CONFIRM="EVENT_CONFIRM",BI.SearchEditor.EVENT_VALID="EVENT_VALID",BI.SearchEditor.EVENT_ERROR="EVENT_ERROR",BI.SearchEditor.EVENT_ENTER="EVENT_ENTER",BI.SearchEditor.EVENT_RESTRICT="EVENT_RESTRICT",BI.SearchEditor.EVENT_REMOVE="EVENT_REMOVE",BI.SearchEditor.EVENT_EMPTY="EVENT_EMPTY",BI.shortcut("bi.search_editor",BI.SearchEditor),BI.SmallSearchEditor=BI.inherit(BI.SearchEditor,{_defaultConfig:function(){var a=BI.SmallSearchEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{baseCls:(a.baseCls||"")+" bi-small-search-editor",height:24})},_init:function(){BI.SmallSearchEditor.superclass._init.apply(this,arguments)}}),BI.shortcut("bi.small_search_editor",BI.SmallSearchEditor),BI.TextEditor=BI.inherit(BI.Widget,{_defaultConfig:function(){var a=BI.TextEditor.superclass._defaultConfig.apply(this,arguments);return BI.extend(a,{extraCls:"bi-text-editor bi-border",hgap:4,vgap:2,lgap:0,rgap:0,tgap:0,bgap:0,validationChecker:BI.emptyFn,quitChecker:BI.emptyFn,allowBlank:!1,watermark:"",errorText:"",height:24})},_init:function(){BI.TextEditor.superclass._init.apply(this,arguments);var a=this,b=this.options;BI.isNumber(b.height)&&this.element.css({height:b.height-2}),BI.isNumber(b.width)&&this.element.css({width:b.width-2}),this.editor=BI.createWidget({type:"bi.editor",height:b.height-2,hgap:b.hgap,vgap:b.vgap,lgap:b.lgap,rgap:b.rgap,tgap:b.tgap,bgap:b.bgap,value:b.value,title:b.title,tipType:b.tipType,validationChecker:b.validationChecker,quitChecker:b.quitChecker,allowBlank:b.allowBlank,watermark:b.watermark,errorText:b.errorText}),this.editor.on(BI.Controller.EVENT_CHANGE,function(){a.fireEvent(BI.Controller.EVENT_CHANGE,arguments)}),this.editor.on(BI.Editor.EVENT_FOCUS,function(){a.fireEvent(BI.TextEditor.EVENT_FOCUS)}),this.editor.on(BI.Editor.EVENT_BLUR,function(){a.fireEvent(BI.TextEditor.EVENT_BLUR); diff --git a/dist/fineui_without_jquery_polyfill.js b/dist/fineui_without_jquery_polyfill.js index a7d5b829c..9591fff5d 100644 --- a/dist/fineui_without_jquery_polyfill.js +++ b/dist/fineui_without_jquery_polyfill.js @@ -22,7 +22,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -30,10084 +30,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; - - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; - - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' - }; - - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; - - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; - - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; - - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); - - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; - - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; - - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; - - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; - - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); - - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; - - /*--------------------------------------------------------------------------*/ - - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } - - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; - } - - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } - - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; - } - - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } - return false; - } - - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); - } - return result; - } - - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; - - while (++index < length) { - array[offset + index] = values[index]; - } - return array; - } - - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; - - if (initAccum && length) { - accumulator = array[++index]; - } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); - } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } - } - return false; - } - - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); - - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); - } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; - } - - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } - - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } - - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; - - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); - - while (++index < n) { - result[index] = iteratee(index); - } - return result; - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } - - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } - - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; - - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; - - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; - - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; - } - - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); - - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } - - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } - - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; - - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } - - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); - - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } - - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; - } - - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; - }); - - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); - } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); - }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; - } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); - } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); - } - - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; - } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /*--------------------------------------------------------------------------*/ + + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; + + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); + + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); + + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; + + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; + } + } + + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); + + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; + + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. - } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; - } + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; - } + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; + } + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - /*------------------------------------------------------------------------*/ + if (newValue === undefined) { + newValue = srcValue; + } + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; + } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; + + var isCommon = newValue === undefined; + + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; + } + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); + } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); + } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; + } + else { + seen = iteratee ? [] : result; } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } + } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { + return -1; + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; + + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } + + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; + + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func); + + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; + } + object = object.buffer; + other = other.buffer; + + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; + case errorTag: + return object.name == other.name && object.message == other.message; - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; - }); + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + case mapTag: + var convert = mapToArray; - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; - }); + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; - }; - }); + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; + } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); }); - - LazyWrapper.prototype.compact = function() { - return this.filter(identity); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; }; - - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return new Ctor; + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return new Ctor; + + case symbolTag: + return cloneSymbol(object); + } + } + + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; + }); - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); + } + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; }; - - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); - - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; }; - - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); }; - - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; + } + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; + } + if (isPrototype(value)) { + return !baseKeys(value).length; + } + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; + }); + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); + }); + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; }; - - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; - - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); - - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); + + /*------------------------------------------------------------------------*/ + + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; + }; - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); + }; + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; + }; + }); - names.push({ 'name': methodName, 'func': lodashFunc }); - } - }); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; + }; + }); - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); + }; + }); - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - /*--------------------------------------------------------------------------*/ + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); } + return this.map(function(value) { + return baseInvoke(value, path, args); + }); + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; + }); + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 基本函数 @@ -10675,6 +10711,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -10787,12 +10824,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - args.unshift(true); - return $.extend.apply($, args); } }); diff --git a/dist/utils.js b/dist/utils.js index 7eff173bb..8c5dc2986 100644 --- a/dist/utils.js +++ b/dist/utils.js @@ -22,7 +22,7 @@ if(_global.BI.prepares == null) { }/** * @license * Lodash (Custom Build) - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -30,10084 +30,10120 @@ if(_global.BI.prepares == null) { */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; - - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; - - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' - }; - - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; - - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; - - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; - - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); - - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; - - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; - - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; - - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; - - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); - - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; - - /*--------------------------------------------------------------------------*/ - - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } - - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; - } - - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } - - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; - } - - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } - return false; - } - - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); - } - return result; - } - - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; - - while (++index < length) { - array[offset + index] = values[index]; - } - return array; - } - - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; - - if (initAccum && length) { - accumulator = array[++index]; - } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); - } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } - } - return false; - } - - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); - - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); - } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; - } - - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } - - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } - - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; - - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); - - while (++index < n) { - result[index] = iteratee(index); - } - return result; - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } - - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } - - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; - - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; - - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; - - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; - } - - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); - - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } - - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } - - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; - - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } - - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); - - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } - - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; - } - - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; - }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); - }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); - }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); - }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); - }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; - }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; - }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; - }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); - }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; - }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; - } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; - } - - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } - - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; - } - - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); - } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); - } - }); - - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; - } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); - }); - - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); - }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; - } - - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; - } - return createWrap(func, bitmask, thisArg, partials, holders); - }); - - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } - - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; - } - - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } - - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; - - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } - - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } - - function trailingEdge(time) { - timerId = undefined; - - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; - } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; - } - - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } - - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); - }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); - }); - - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); - }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); - }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; - }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); - }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); - }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; - }); - - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); - } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); - }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; - } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); - } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); - } - - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; - } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; + }; + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); + }; + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); + }; + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /*--------------------------------------------------------------------------*/ + + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; + + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); + + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; + }; + }()); + + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash + }; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; + + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; + } + } + + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; + }); + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } + }); + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); + + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; + + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. - } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; - } + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; - } + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; + } + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); + } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); + }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - /*------------------------------------------------------------------------*/ + if (newValue === undefined) { + newValue = srcValue; + } + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; + } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; + + var isCommon = newValue === undefined; + + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; + } + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); + } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); + } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); + } + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; + }); - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); + }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; } + else { + seen = iteratee ? [] : result; + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } + } + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { + return -1; + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; + + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; + }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } + + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; + + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func); + + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; + } + object = object.buffer; + other = other.buffer; + + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; + } + return true; - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; - }); + case errorTag: + return object.name == other.name && object.message == other.message; - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; - }); + case mapTag: + var convert = mapToArray; - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; - }; - }); + if (object.size != other.size && !isPartial) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; + } + bitmask |= COMPARE_UNORDERED_FLAG; - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); - }; + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; + } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); }); - - LazyWrapper.prototype.compact = function() { - return this.filter(identity); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; }; - - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return new Ctor; + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return new Ctor; + + case symbolTag: + return cloneSymbol(object); + } + } + + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; + }); - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); }; - - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); + } + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } + }); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } + }); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); + }); + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined + }); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; + }); + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; }; - - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); - - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; }; - - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); }; - - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; + } + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; + } + if (isPrototype(value)) { + return !baseKeys(value).length; + } + for (var key in value) { + if (hasOwnProperty.call(value, key)) { + return false; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; + }); + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; + }); + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); + }); + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; }; - - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); - - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; - - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); - - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } }); + return source; + }()), { 'chain': false }); + + /*------------------------------------------------------------------------*/ + + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; + }; - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); + }; + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; + }; + }); - names.push({ 'name': methodName, 'func': lodashFunc }); - } - }); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; + }; + }); - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); + }; + }); - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - /*--------------------------------------------------------------------------*/ + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); } + return this.map(function(value) { + return baseInvoke(value, path, args); + }); + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; + }); + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this)); /** * 常量 @@ -11452,6 +11488,7 @@ if (!_global.BI) { // deep方法 _.extend(BI, { deepClone: _.cloneDeep, + deepExtend: _.merge, isDeepMatch: function (object, attrs) { var keys = BI.keys(attrs), length = keys.length; @@ -11564,12 +11601,6 @@ if (!_global.BI) { } } return result; - }, - - deepExtend: function () { - var args = [].slice.call(arguments); - args.unshift(true); - return $.extend.apply($, args); } }); diff --git a/dist/utils.min.js b/dist/utils.min.js index 7670eb295..cbe0a1830 100644 --- a/dist/utils.min.js +++ b/dist/utils.min.js @@ -1,5 +1,5 @@ -/*! fineui 2018-10-29 15:29:46 */ +/*! fineui 2018-10-30 13:46:40 */ var _global;_global="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof 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path="+b),document.cookie=d}},BI.CellSizeAndPositionManager=function(a,b,c){this._cellSizeGetter=b,this._cellCount=a,this._estimatedCellSize=c,this._cellSizeAndPositionData={},this._lastMeasuredIndex=-1},BI.CellSizeAndPositionManager.prototype={constructor:BI.CellSizeAndPositionManager,configure:function(a,b){this._cellCount=a,this._estimatedCellSize=b},getCellCount:function(){return this._cellCount},getEstimatedCellSize:function(){return this._estimatedCellSize},getLastMeasuredIndex:function(){return this._lastMeasuredIndex},getSizeAndPositionOfCell:function(a){if(!(a<0||a>=this._cellCount)){if(a>this._lastMeasuredIndex){for(var b=this.getSizeAndPositionOfLastMeasuredCell(),c=b.offset+b.size,d=this._lastMeasuredIndex+1;d<=a;d++){var e=this._cellSizeGetter(d);null==e||isNaN(e)||(this._cellSizeAndPositionData[d]={offset:c,size:e},c+=e)}this._lastMeasuredIndex=a}return this._cellSizeAndPositionData[a]}},getSizeAndPositionOfLastMeasuredCell:function(){return this._lastMeasuredIndex>=0?this._cellSizeAndPositionData[this._lastMeasuredIndex]:{offset:0,size:0}},getTotalSize:function(){var a=this.getSizeAndPositionOfLastMeasuredCell();return a.offset+a.size+(this._cellCount-this._lastMeasuredIndex-1)*this._estimatedCellSize},getUpdatedOffsetForIndex:function(a,b,c,d){var e,f=this.getSizeAndPositionOfCell(d),g=f.offset,h=g-b+f.size;switch(a){case"start":e=g;break;case"end":e=h;break;case"center":e=g-(b-f.size)/2;break;default:e=Math.max(h,Math.min(g,c))}var i=this.getTotalSize();return Math.max(0,Math.min(i-b,e))},getVisibleCellRange:function(a,b){var c=this.getTotalSize();if(0===c)return{};var d=b+a,e=this._findNearestCell(b),f=this.getSizeAndPositionOfCell(e);b=f.offset+f.size;for(var g=e;bc&&(a=d-1)}if(b>0)return b-1},_exponentialSearch:function(a,b){for(var c=1;a=a?this._binarySearch(c,0,a):this._exponentialSearch(c,a)}}},BI.ScalingCellSizeAndPositionManager=function(a,b,c,d){this._cellSizeAndPositionManager=new BI.CellSizeAndPositionManager(a,b,c),this._maxScrollSize=d||1e7},BI.ScalingCellSizeAndPositionManager.prototype={constructor:BI.ScalingCellSizeAndPositionManager,configure:function(){this._cellSizeAndPositionManager.configure.apply(this._cellSizeAndPositionManager,arguments)},getCellCount:function(){return this._cellSizeAndPositionManager.getCellCount()},getEstimatedCellSize:function(){return this._cellSizeAndPositionManager.getEstimatedCellSize()},getLastMeasuredIndex:function(){return this._cellSizeAndPositionManager.getLastMeasuredIndex()},getOffsetAdjustment:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize(),e=this._getOffsetPercentage(a,b,d);return Math.round(e*(d-c))},getSizeAndPositionOfCell:function(a){return this._cellSizeAndPositionManager.getSizeAndPositionOfCell(a)},getSizeAndPositionOfLastMeasuredCell:function(){return this._cellSizeAndPositionManager.getSizeAndPositionOfLastMeasuredCell()},getTotalSize:function(){return Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDO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Math.min(this._maxScrollSize,this._cellSizeAndPositionManager.getTotalSize())},getUpdatedOffsetForIndex:function(a,b,c,d){c=this._safeOffsetToOffset(b,c);var e=this._cellSizeAndPositionManager.getUpdatedOffsetForIndex(a,b,c,d);return this._offsetToSafeOffset(b,e)},getVisibleCellRange:function(a,b){return b=this._safeOffsetToOffset(a,b),this._cellSizeAndPositionManager.getVisibleCellRange(a,b)},resetCell:function(a){this._cellSizeAndPositionManager.resetCell(a)},_getOffsetPercentage:function(a,b,c){return c<=a?0:b/(c-a)},_offsetToSafeOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,c);return Math.round(e*(d-a))},_safeOffsetToOffset:function(a,b){var c=this._cellSizeAndPositionManager.getTotalSize(),d=this.getTotalSize();if(c===d)return b;var e=this._getOffsetPercentage(a,b,d);return Math.round(e*(c-a))}},!function(){var 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TCQQPBBQJZCLPKHQZYYXXDTDDTSJCXFFLLCHQXMJLWCJCXTSPYCXNDTJSHJWXDQQJSKXYAMYLSJHMLALYKXCYYDMNMDQMXMCZNNCYBZKKYFLMCHCMLHXRCJJHSYLNMTJZGZGYWJXSRXCWJGJQHQZDQJDCJJZKJKGDZQGJJYJYLXZXXCDQHHHEYTMHLFSBDJSYYSHFYSTCZQLPBDRFRZTZYKYWHSZYQKWDQZRKMSYNBCRXQBJYFAZPZZEDZCJYWBCJWHYJBQSZYWRYSZPTDKZPFPBNZTKLQYHBBZPNPPTYZZYBQNYDCPJMMCYCQMCYFZZDCMNLFPBPLNGQJTBTTNJZPZBBZNJKLJQYLNBZQHKSJZNGGQSZZKYXSHPZSNBCGZKDDZQANZHJKDRTLZLSWJLJZLYWTJNDJZJHXYAYNCBGTZCSSQMNJPJYTYSWXZFKWJQTKHTZPLBHSNJZSYZBWZZZZLSYLSBJHDWWQPSLMMFBJDWAQYZTCJTBNNWZXQXCDSLQGDSDPDZHJTQQPSWLYYJZLGYXYZLCTCBJTKTYCZJTQKBSJLGMGZDMCSGPYNJZYQYYKNXRPWSZXMTNCSZZYXYBYHYZAXYWQCJTLLCKJJTJHGDXDXYQYZZBYWDLWQCGLZGJGQRQZCZSSBCRPCSKYDZNXJSQGXSSJMYDNSTZTPBDLTKZWXQWQTZEXNQCZGWEZKSSBYBRTSSSLCCGBPSZQSZLCCGLLLZXHZQTHCZMQGYZQZNMCOCSZJMMZSQPJYGQLJYJPPLDXRGZYXCCSXHSHGTZNLZWZKJCXTCFCJXLBMQBCZZWPQDNHXLJCTHYZLGYLNLSZZPCXDSCQQHJQKSXZPBAJYEMSMJTZDXLCJYRYYNWJBNGZZTMJXLTBSLYRZPYLSSCNXPHLLHYLLQQZQLXYMRSYCXZLMMCZLTZSDWTJJLLNZGGQXPFSKYGYGHBFZPDKMWGHCXMSGDXJMCJZDYCABXJDLNBCDQYGSKYDQTXDJJYXMSZQAZDZFSLQXYJSJZYLBTXXWXQQZBJZUFBBLYLWDSLJHXJYZJWTDJCZFQZQZZDZSXZZQLZCDZFJHYSPYMPQZMLPPLFFXJJNZZYLSJEYQZFPFZKSYWJJJHRDJZZXTXXGLGHYDXCSKYSWMMZCWYBAZBJKSHFHJCXMHFQHYXXYZFTSJYZFXYXPZLCHMZMBXHZZSXYFYMNCWDABAZLXKTCSHHXKXJJZJSTHYGXSXYYHHHJWXKZXSSBZZWHHHCWTZZZPJXSNXQQJGZYZYWLLCWXZFXXYXYHXMKYYSWSQMNLNAYCYSPMJKHWCQHYLAJJMZXHMMCNZHBHXCLXTJPLTXYJHDYYLTTXFSZHYXXSJBJYAYRSMXYPLCKDUYHLXRLNLLSTYZYYQYGYHHSCCSMZCTZQXKYQFPYYRPFFLKQUNTSZLLZMWWTCQQYZWTLLMLMPWMBZSSTZRBPDDTLQJJBXZCSRZQQYGWCSXFWZLXCCRSZDZMCYGGDZQSGTJSWLJMYMMZYHFBJDGYXCCPSHXNZCSBSJYJGJMPPWAFFYFNXHYZXZYLREMZGZCYZSSZDLLJCSQFNXZKPTXZGXJJGFMYYYSNBTYLBNLHPFZDCYFBMGQRRSSSZXYSGTZRNYDZZCDGPJAFJFZKNZBLCZSZPSGCYCJSZLMLRSZBZZLDLSLLYSXSQZQLYXZLSKKBRXBRBZCYCXZZZEEYFGKLZLYYHGZSGZLFJHGTGWKRAAJYZKZQTSSHJJXDCYZUYJLZYRZDQQHGJZXSSZBYKJPBFRTJXLLFQWJHYLQTYMBLPZDXTZYGBDHZZRBGXHWNJTJXLKSCFSMWLSDQYSJTXKZSCFWJLBXFTZLLJZLLQBLSQMQQCGCZFPBPHZCZJLPYYGGDTGWDCFCZQYYYQYSSCLXZSKLZZZGFFCQNWGLHQYZJJCZLQZZYJPJZZBPDCCMHJGXDQDGDLZQMFGPSYTSDYFWWDJZJYSXYYCZCYHZWPBYKXRYLYBHKJKSFXTZJMMCKHLLTNYYMSYXYZPYJQYCSYCWMTJJKQYRHLLQXPSGTLYYCLJSCPXJYZFNMLRGJJTYZBXYZMSJYJHHFZQMSYXRSZCWTLRTQZSSTKXGQKGSPTGCZNJSJCQCXHMXGGZTQYDJKZDLBZSXJLHYQGGGTHQSZPYHJHHGYYGKGGCWJZZYLCZLXQSFTGZSLLLMLJSKCTBLLZZSZMMNYTPZSXQHJCJYQXYZXZQZCPSHKZZYSXCDFGMWQRLLQXRFZTLYSTCTMJCXJJXHJNXTNRZTZFQYHQGLLGCXSZSJDJLJCYDSJTLNYXHSZXCGJZYQPYLFHDJSBPCCZHJJJQZJQDYBSSLLCMYTTMQTBHJQNNYGKYRQYQMZGCJKPDCGMYZHQLLSLLCLMHOLZGDYYFZSLJCQZLYLZQJESHNYLLJXGJXLYSYYYXNBZLJSSZCQQCJYLLZLTJYLLZLLBNYLGQCHXYYXOXCXQKYJXXXYKLXSXXYQXCYKQXQCSGYXXYQXYGYTQOHXHXPYXXXULCYEYCHZZCBWQBBWJQZSCSZSSLZYLKDESJZWMYMCYTSDSXXSCJPQQSQYLYYZYCMDJDZYWCBTJSYDJKCYDDJLBDJJSODZYSYXQQYXDHHGQQYQHDYXWGMMMAJDYBBBPPBCMUUPLJZSMTXERXJMHQNUTPJDCBSSMSSSTKJTSSMMTRCPLZSZMLQDSDMJMQPNQDXCFYNBFSDQXYXHYAYKQYDDLQYYYSSZBYDSLNTFQTZQPZMCHDHCZCWFDXTMYQSPHQYYXSRGJCWTJTZZQMGWJJTJHTQJBBHWZPXXHYQFXXQYWYYHYSCDYDHHQMNMTMWCPBSZPPZZGLMZFOLLCFWHMMSJZTTDHZZYFFYTZZGZYSKYJXQYJZQBHMBZZLYGHGFMSHPZFZSNCLPBQSNJXZSLXXFPMTYJYGBXLLDLXPZJYZJYHHZCYWHJYLSJEXFSZZYWXKZJLUYDTMLYMQJPWXYHXSKTQJEZRPXXZHHMHWQPWQLYJJQJJZSZCPHJLCHHNXJLQWZJHBMZYXBDHHYPZLHLHLGFWLCHYYTLHJXCJMSCPXSTKPNHQXSRTYXXTESYJCTLSSLSTDLLLWWYHDHRJZSFGXTSYCZYNYHTDHWJSLHTZDQDJZXXQHGYLTZPHCSQFCLNJTCLZPFSTPDYNYLGMJLLYCQHYSSHCHYLHQYQTMZYPBYWRFQYKQSYSLZDQJMPXYYSSRHZJNYWTQDFZBWWTWWRXCWHGYHXMKMYYYQMSMZHNGCEPMLQQMTCWCTMMPXJPJJHFXYYZSXZHTYBMSTSYJTTQQQYYLHYNPYQZLCYZHZWSMYLKFJXLWGXYPJYTYSYXYMZCKTTWLKSMZSYLMPWLZWXWQZSSAQSYXYRHSSNTSRAPXCPWCMGDXHXZDZYFJHGZTTSBJHGYZSZYSMYCLLLXBTYXHBBZJKSSDMALXHYCFYGMQYPJYCQXJLLLJGSLZGQLYCJCCZOTYXMTMTTLLWTGPXYMZMKLPSZZZXHKQYSXCTYJZYHXSHYXZKXLZWPSQPYHJWPJPWXQQYLXSDHMRSLZZYZWTTCYXYSZZSHBSCCSTPLWSSCJCHNLCGCHSSPHYLHFHHXJSXYLLNYLSZDHZXYLSXLWZYKCLDYAXZCMDDYSPJTQJZLNWQPSSSWCTSTSZLBLNXSMNYYMJQBQHRZWTYYDCHQLXKPZWBGQYBKFCMZWPZLLYYLSZYDWHXPSBCMLJBSCGBHXLQHYRLJXYSWXWXZSLDFHLSLYNJLZYFLYJYCDRJLFSYZFSLLCQYQFGJYHYXZLYLMSTDJCYHBZLLNWLXXYGYYHSMGDHXXHHLZZJZXCZZZCYQZFNGWPYLCPKPYYPMCLQKDGXZGGWQBDXZZKZFBXXLZXJTPJPTTBYTSZZDWSLCHZHSLTYXHQLHYXXXYYZYSWTXZKHLXZXZPYHGCHKCFSYHUTJRLXFJXPTZTWHPLYXFCRHXSHXKYXXYHZQDXQWULHYHMJTBFLKHTXCWHJFWJCFPQRYQXCYYYQYGRPYWSGSUNGWCHKZDXYFLXXHJJBYZWTSXXNCYJJYMSWZJQRMHXZWFQSYLZJZGBHYNSLBGTTCSYBYXXWXYHXYYXNSQYXMQYWRGYQLXBBZLJSYLPSYTJZYHYZAWLRORJMKSCZJXXXYXCHDYXRYXXJDTSQFXLYLTSFFYXLMTYJMJUYYYXLTZCSXQZQHZXLYYXZHDNBRXXXJCTYHLBRLMBRLLAXKYLLLJLYXXLYCRYLCJTGJCMTLZLLCYZZPZPCYAWHJJFYBDYYZSMPCKZDQYQPBPCJPDCYZMDPBCYYDYCNNPLMTMLRMFMMGWYZBSJGYGSMZQQQZTXMKQWGXLLPJGZBQCDJJJFPKJKCXBLJMSWMDTQJXLDLPPBXCWRCQFBFQJCZAHZGMYKPHYYHZYKNDKZMBPJYXPXYHLFPNYYGXJDBKXNXHJMZJXSTRSTLDXSKZYSYBZXJLXYSLBZYSLHXJPFXPQNBYLLJQKYGZMCYZZYMCCSLCLHZFWFWYXZMWSXTYNXJHPYYMCYSPMHYSMYDYSHQYZCHMJJMZCAAGCFJBBHPLYZYLXXSDJGXDHKXXTXXNBHRMLYJSLTXMRHNLXQJXYZLLYSWQGDLBJHDCGJYQYCMHWFMJYBMBYJYJWYMDPWHXQLDYGPDFXXBCGJSPCKRSSYZJMSLBZZJFLJJJLGXZGYXYXLSZQYXBEXYXHGCXBPLDYHWETTWWCJMBTXCHXYQXLLXFLYXLLJLSSFWDPZSMYJCLMWYTCZPCHQEKCQBWLCQYDPLQPPQZQFJQDJHYMMCXTXDRMJWRHXCJZYLQXDYYNHYYHRSLSRSYWWZJYMTLTLLGTQCJZYABTCKZCJYCCQLJZQXALMZYHYWLWDXZXQDLLQSHGPJFJLJHJABCQZDJGTKHSSTCYJLPSWZLXZXRWGLDLZRLZXTGSLLLLZLYXXWGDZYGBDPHZPBRLWSXQBPFDWOFMWHLYPCBJCCLDMBZPBZZLCYQXLDOMZBLZWPDWYYGDSTTHCSQSCCRSSSYSLFYBFNTYJSZDFNDPDHDZZMBBLSLCMYFFGTJJQWFTMTPJWFNLBZCMMJTGBDZLQLPYFHYYMJYLSDCHDZJWJCCTLJCLDTLJJCPDDSQDSSZYBNDBJLGGJZXSXNLYCYBJXQYCBYLZCFZPPGKCXZDZFZTJJFJSJXZBNZYJQTTYJYHTYCZHYMDJXTTMPXSPLZCDWSLSHXYPZGTFMLCJTYCBPMGDKWYCYZCDSZZYHFLYCTYGWHKJYYLSJCXGYWJCBLLCSNDDBTZBSCLYZCZZSSQDLLMQYYHFSLQLLXFTYHABXGWNYWYYPLLSDLDLLBJCYXJZMLHLJDXYYQYTDLLLBUGBFDFBBQJZZMDPJHGCLGMJJPGAEHHBWCQXAXHHHZCHXYPHJAXHLPHJPGPZJQCQZGJJZZUZDMQYYBZZPHYHYBWHAZYJHYKFGDPFQSDLZMLJXKXGALXZDAGLMDGXMWZQYXXDXXPFDMMSSYMPFMDMMKXKSYZYSHDZKXSYSMMZZZMSYDNZZCZXFPLSTMZDNMXCKJMZTYYMZMZZMSXHHDCZJEMXXKLJSTLWLSQLYJZLLZJSSDPPMHNLZJCZYHMXXHGZCJMDHXTKGRMXFWMCGMWKDTKSXQMMMFZZYDKMSCLCMPCGMHSPXQPZDSSLCXKYXTWLWJYAHZJGZQMCSNXYYMMPMLKJXMHLMLQMXCTKZMJQYSZJSYSZHSYJZJCDAJZYBSDQJZGWZQQXFKDMSDJLFWEHKZQKJPEYPZYSZCDWYJFFMZZYLTTDZZEFMZLBNPPLPLPEPSZALLTYLKCKQZKGENQLWAGYXYDPXLHSXQQWQCQXQCLHYXXMLYCCWLYMQYSKGCHLCJNSZKPYZKCQZQLJPDMDZHLASXLBYDWQLWDNBQCRYDDZTJYBKBWSZDXDTNPJDTCTQDFXQQMGNXECLTTBKPWSLCTYQLPWYZZKLPYGZCQQPLLKCCYLPQMZCZQCLJSLQZDJXLDDHPZQDLJJXZQDXYZQKZLJCYQDYJPPYPQYKJYRMPCBYMCXKLLZLLFQPYLLLMBSGLCYSSLRSYSQTMXYXZQZFDZUYSYZTFFMZZSMZQHZSSCCMLYXWTPZGXZJGZGSJSGKDDHTQGGZLLBJDZLCBCHYXYZHZFYWXYZYMSDBZZYJGTSMTFXQYXQSTDGSLNXDLRYZZLRYYLXQHTXSRTZNGZXBNQQZFMYKMZJBZYMKBPNLYZPBLMCNQYZZZSJZHJCTZKHYZZJRDYZHNPXGLFZTLKGJTCTSSYLLGZRZBBQZZKLPKLCZYSSUYXBJFPNJZZXCDWXZYJXZZDJJKGGRSRJKMSMZJLSJYWQSKYHQJSXPJZZZLSNSHRNYPZTWCHKLPSRZLZXYJQXQKYSJYCZTLQZYBBYBWZPQDWWYZCYTJCJXCKCWDKKZXSGKDZXWWYYJQYYTCYTDLLXWKCZKKLCCLZCQQDZLQLCSFQCHQHSFSMQZZLNBJJZBSJHTSZDYSJQJPDLZCDCWJKJZZLPYCGMZWDJJBSJQZSYZYHHXJPBJYDSSXDZNCGLQMBTSFSBPDZDLZNFGFJGFSMPXJQLMBLGQCYYXBQKDJJQYRFKZTJDHCZKLBSDZCFJTPLLJGXHYXZCSSZZXSTJYGKGCKGYOQXJPLZPBPGTGYJZGHZQZZLBJLSQFZGKQQJZGYCZBZQTLDXRJXBSXXPZXHYZYCLWDXJJHXMFDZPFZHQHQMQGKSLYHTYCGFRZGNQXCLPDLBZCSCZQLLJBLHBZCYPZZPPDYMZZSGYHCKCPZJGSLJLNSCDSLDLXBMSTLDDFJMKDJDHZLZXLSZQPQPGJLLYBDSZGQLBZLSLKYYHZTTNTJYQTZZPSZQZTLLJTYYLLQLLQYZQLBDZLSLYYZYMDFSZSNHLXZNCZQZPBWSKRFBSYZMTHBLGJPMCZZLSTLXSHTCSYZLZBLFEQHLXFLCJLYLJQCBZLZJHHSSTBRMHXZHJZCLXFNBGXGTQJCZTMSFZKJMSSNXLJKBHSJXNTNLZDNTLMSJXGZJYJCZXYJYJWRWWQNZTNFJSZPZSHZJFYRDJSFSZJZBJFZQZZHZLXFYSBZQLZSGYFTZDCSZXZJBQMSZKJRHYJZCKMJKHCHGTXKXQGLXPXFXTRTYLXJXHDTSJXHJZJXZWZLCQSBTXWXGXTXXHXFTSDKFJHZYJFJXRZSDLLLTQSQQZQWZXSYQTWGWBZCGZLLYZBCLMQQTZHZXZXLJFRMYZFLXYSQXXJKXRMQDZDMMYYBSQBHGZMWFWXGMXLZPYYTGZYCCDXYZXYWGSYJYZNBHPZJSQSYXSXRTFYZGRHZTXSZZTHCBFCLSYXZLZQMZLMPLMXZJXSFLBYZMYQHXJSXRXSQZZZSSLYFRCZJRCRXHHZXQYDYHXSJJHZCXZBTYNSYSXJBQLPXZQPYMLXZKYXLXCJLCYSXXZZLXDLLLJJYHZXGYJWKJRWYHCPSGNRZLFZWFZZNSXGXFLZSXZZZBFCSYJDBRJKRDHHGXJLJJTGXJXXSTJTJXLYXQFCSGSWMSBCTLQZZWLZZKXJMLTMJYHSDDBXGZHDLBMYJFRZFSGCLYJBPMLYSMSXLSZJQQHJZFXGFQFQBPXZGYYQXGZTCQWYLTLGWSGWHRLFSFGZJMGMGBGTJFSYZZGZYZAFLSSPMLPFLCWBJZCLJJMZLPJJLYMQDMYYYFBGYGYZMLYZDXQYXRQQQHSYYYQXYLJTYXFSFSLLGNQCYHYCWFHCCCFXPYLYPLLZYXXXXXKQHHXSHJZCFZSCZJXCPZWHHHHHAPYLQALPQAFYHXDYLUKMZQGGGDDESRNNZLTZGCHYPPYSQJJHCLLJTOLNJPZLJLHYMHEYDYDSQYCDDHGZUNDZCLZYZLLZNTNYZGSLHSLPJJBDGWXPCDUTJCKLKCLWKLLCASSTKZZDNQNTTLYYZSSYSSZZRYLJQKCQDHHCRXRZYDGRGCWCGZQFFFPPJFZYNAKRGYWYQPQXXFKJTSZZXSWZDDFBBXTBGTZKZNPZZPZXZPJSZBMQHKCYXYLDKLJNYPKYGHGDZJXXEAHPNZKZTZCMXCXMMJXNKSZQNMNLWBWWXJKYHCPSTMCSQTZJYXTPCTPDTNNPGLLLZSJLSPBLPLQHDTNJNLYYRSZFFJFQWDPHZDWMRZCCLODAXNSSNYZRESTYJWJYJDBCFXNMWTTBYLWSTSZGYBLJPXGLBOCLHPCBJLTMXZLJYLZXCLTPNCLCKXTPZJSWCYXSFYSZDKNTLBYJCYJLLSTGQCBXRYZXBXKLYLHZLQZLNZCXWJZLJZJNCJHXMNZZGJZZXTZJXYCYYCXXJYYXJJXSSSJSTSSTTPPGQTCSXWZDCSYFPTFBFHFBBLZJCLZZDBXGCXLQPXKFZFLSYLTUWBMQJHSZBMDDBCYSCCLDXYCDDQLYJJWMQLLCSGLJJSYFPYYCCYLTJANTJJPWYCMMGQYYSXDXQMZHSZXPFTWWZQSWQRFKJLZJQQYFBRXJHHFWJJZYQAZMYFRHCYYBYQWLPEXCCZSTYRLTTDMQLYKMBBGMYYJPRKZNPBSXYXBHYZDJDNGHPMFSGMWFZMFQMMBCMZZCJJLCNUXYQLMLRYGQZCYXZLWJGCJCGGMCJNFYZZJHYCPRRCMTZQZXHFQGTJXCCJEAQCRJYHPLQLSZDJRBCQHQDYRHYLYXJSYMHZYDWLDFRYHBPYDTSSCNWBXGLPZMLZZTQSSCPJMXXYCSJYTYCGHYCJWYRXXLFEMWJNMKLLSWTXHYYYNCMMCWJDQDJZGLLJWJRKHPZGGFLCCSCZMCBLTBHBQJXQDSPDJZZGHGLFQYWBZYZJLTSTDHQHCTCBCHFLQMPWDSHYYTQWCNZZJTLBYMBPDYYYXSQKXWYYFLXXNCWCXYPMAELYKKJMZZZBRXYYQJFLJPFHHHYTZZXSGQQMHSPGDZQWBWPJHZJDYSCQWZKTXXSQLZYYMYSDZGRXCKKUJLWPYSYSCSYZLRMLQSYLJXBCXTLWDQZPCYCYKPPPNSXFYZJJRCEMHSZMSXLXGLRWGCSTLRSXBZGBZGZTCPLUJLSLYLYMTXMTZPALZXPXJTJWTCYYZLBLXBZLQMYLXPGHDSLSSDMXMBDZZSXWHAMLCZCPJMCNHJYSNSYGCHSKQMZZQDLLKABLWJXSFMOCDXJRRLYQZKJMYBYQLYHETFJZFRFKSRYXFJTWDSXXSYSQJYSLYXWJHSNLXYYXHBHAWHHJZXWMYLJCSSLKYDZTXBZSYFDXGXZJKHSXXYBSSXDPYNZWRPTQZCZENYGCXQFJYKJBZMLJCMQQXUOXSLYXXLYLLJDZBTYMHPFSTTQQWLHOKYBLZZALZXQLHZWRRQHLSTMYPYXJJXMQSJFNBXYXYJXXYQYLTHYLQYFMLKLJTMLLHSZWKZHLJMLHLJKLJSTLQXYLMBHHLNLZXQJHXCFXXLHYHJJGBYZZKBXSCQDJQDSUJZYYHZHHMGSXCSYMXFEBCQWWRBPYYJQTYZCYQYQQZYHMWFFHGZFRJFCDPXNTQYZPDYKHJLFRZXPPXZDBBGZQSTLGDGYLCQMLCHHMFYWLZYXKJLYPQHSYWMQQGQZMLZJNSQXJQSYJYCBEHSXFSZPXZWFLLBCYYJDYTDTHWZSFJMQQYJLMQXXLLDTTKHHYBFPWTYYSQQWNQWLGWDEBZWCMYGCULKJXTMXMYJSXHYBRWFYMWFRXYQMXYSZTZZTFYKMLDHQDXWYYNLCRYJBLPSXCXYWLSPRRJWXHQYPHTYDNXHHMMYWYTZCSQMTSSCCDALWZTCPQPYJLLQZYJSWXMZZMMYLMXCLMXCZMXMZSQTZPPQQBLPGXQZHFLJJHYTJSRXWZXSCCDLXTYJDCQJXSLQYCLZXLZZXMXQRJMHRHZJBHMFLJLMLCLQNLDXZLLLPYPSYJYSXCQQDCMQJZZXHNPNXZMEKMXHYKYQLXSXTXJYYHWDCWDZHQYYBGYBCYSCFGPSJNZDYZZJZXRZRQJJYMCANYRJTLDPPYZBSTJK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BI.first(this.children)},getLastChild:function(){return BI.last(this.children)},setLeft:function(a){this.left=a},getLeft:function(){return this.left},setRight:function(a){this.right=a},getRight:function(){return this.right},setParent:function(a){this.parent=a},getParent:function(){return this.parent},getChild:function(a){return this.children[a]},getChildIndex:function(a){return BI.findIndex(this.children,function(b,c){return c.get("id")===a})},removeChild:function(a){this.removeChildByIndex(this.getChildIndex(a))},removeChildByIndex:function(a){var b=this.getChild(a-1),c=this.getChild(a+1);null!=b&&b.setRight(c||null),null!=c&&c.setLeft(b||null),this.children.splice(a,1)},removeAllChilds:function(){this.children=[]},addChild:function(a,b){var c=null;c=BI.isUndefined(b)?this.children.length-1:b-1,a.setParent(this),c>=0&&(this.getChild(c)&&this.getChild(c).setRight(a),a.setLeft(this.getChild(c))),BI.isUndefined(b)?this.children.push(a):this.children.splice(b,0,a)},equals:function(a){return this===a||this.id===a.id},clear:function(){this.parent=null,this.left=null,this.right=null,this.children=[]}},BI.extend(BI.Tree,{transformToArrayFormat:function(a,b){if(!a)return[];var c=[];if(BI.isArray(a))for(var d=0,e=a.length;d=this.x&&a<=this.x+this.w&&b>=this.y&&b<=this.y+this.h)},getPosition:function(){var a=[];return a.push(this.x+this.w/2),a.push(this.y+this.h/2),a}},BI.Date=BI.Date||{},BI.Date._DN=["星期日","星期一","星期二","星期三","星期四","星期五","星期六","星期日"],BI.Date._SDN=["日","一","二","三","四","五","六","日"],BI.Date._FD=1,BI.Date._MN=["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"],BI.Date._SMN=[0,1,2,3,4,5,6,7,8,9,10,11],BI.Date._QN=["","第1季度","第2季度","第3季度","第4季度"],BI.Date._MD=[31,28,31,30,31,30,31,31,30,31,30,31],BI.Date._OFFSET=[0,-1,-2,-3,-4,-5,-6],BI.i18n={"BI-Multi_Date_Quarter_End":"季度末","BI-Multi_Date_Month_Begin":"月初","BI-Multi_Date_YMD":"年/月/日","BI-Custom_Color":"自定义颜色","BI-Numerical_Interval_Input_Data":"请输入数值","BI-Please_Input_Natural_Number":"请输入非负整数","BI-No_More_Data":"无更多数据","BI-Basic_Altogether":"共","BI-Basic_Sunday":"星期日","BI-Widget_Background_Colour":"组件背景","BI-Color_Picker_Error_Text":"请输入0~255的正整数","BI-Multi_Date_Month":"月","BI-No_Selected_Item":"没有可选项","BI-Multi_Date_Year_Begin":"年初","BI-Quarter_1":"第1季度","BI-Quarter_2":"第2季度","BI-Quarter_3":"第3季度","BI-Quarter_4":"第4季度","BI-Multi_Date_Year_Next":"年后","BI-Multi_Date_Month_Prev":"个月前","BI-Month_Trigger_Error_Text":"请输入1~12的正整数","BI-Less_And_Equal":"小于等于","BI-Year_Trigger_Invalid_Text":"请输入有效时间","BI-Multi_Date_Week_Next":"周后","BI-Font_Size":"字号","BI-Basic_Total":"共","BI-Already_Selected":"已选择","BI-Formula_Insert":"插入","BI-Select_All":"全选","BI-Basic_Tuesday":"星期二","BI-Multi_Date_Month_End":"月末","BI-Load_More":"点击加载更多数据","BI-Basic_September":"九月","BI-Current_Is_Last_Page":"当前已是最后一页","BI-Basic_Auto":"自动","BI-Basic_Count":"个","BI-Basic_Value":"值","BI-Basic_Unrestricted":"无限制","BI-Quarter_Trigger_Error_Text":"请输入1~4的正整数","BI-Basic_More":"更多","BI-Basic_Wednesday":"星期三","BI-Basic_Bold":"加粗","BI-Basic_Simple_Saturday":"六","BI-Multi_Date_Month_Next":"个月后","BI-Basic_March":"三月","BI-Current_Is_First_Page":"当前已是第一页","BI-Basic_Thursday":"星期四","BI-Basic_Prompt":"提示","BI-Multi_Date_Today":"今天","BI-Multi_Date_Quarter_Prev":"个季度前","BI-Row_Header":"行表头","BI-Date_Trigger_Error_Text":"日期格式示例:2015-3-11","BI-Basic_Cancel":"取消","BI-Basic_January":"一月","BI-Basic_June":"六月","BI-Basic_July":"七月","BI-Basic_April":"四月","BI-Multi_Date_Quarter_Begin":"季度初","BI-Multi_Date_Week":"周","BI-Click_Blank_To_Select":'点击"空格键"选中完全匹配项',"BI-Basic_August":"八月","BI-Word_Align_Left":"文字居左","BI-Basic_November":"十一月","BI-Font_Colour":"字体颜色","BI-Multi_Date_Day_Prev":"天前","BI-Select_Part":"部分选择","BI-Multi_Date_Day_Next":"天后","BI-Less_Than":"小于","BI-Basic_February":"二月","BI-Multi_Date_Year":"年","BI-Number_Index":"序号","BI-Multi_Date_Week_Prev":"周前","BI-Next_Page":"下一页","BI-Right_Page":"向右翻页","BI-Numerical_Interval_Signal_Value":"前后值相等，请将操作符改为“≤”","BI-Basic_December":"十二月","BI-Basic_Saturday":"星期六","BI-Basic_Simple_Wednesday":"三","BI-Multi_Date_Quarter_Next":"个季度后","BI-Basic_October":"十月","BI-Basic_Simple_Friday":"五","BI-Basic_Save":"保存","BI-Numerical_Interval_Number_Value":"请保证前面的数值小于/等于后面的数值","BI-Previous_Page":"上一页","BI-No_Select":"搜索结果为空","BI-Basic_Clears":"清空","BI-Created_By_Me":"我创建的","BI-Basic_Simple_Tuesday":"二","BI-Word_Align_Right":"文字居右","BI-Summary_Values":"汇总","BI-Basic_Clear":"清除","BI-Upload_File_Size_Error":"文件大小不支","BI-Up_Page":"向上翻页","BI-Basic_Simple_Sunday":"日","BI-Multi_Date_Relative_Current_Time":"相对当前时间","BI-Selected_Data":"已选数据：","BI-Multi_Date_Quarter":"季度","BI-Check_Selected":"查看已选","BI-Basic_Search":"搜索","BI-Basic_May":"五月","BI-Continue_Select":"继续选择","BI-Please_Input_Positive_Integer":"请输入正整数","BI-Upload_File_Type_Error":"文件类型不支持","BI-Basic_Friday":"星期五","BI-Down_Page":"向下翻页","BI-Basic_Monday":"星期一","BI-Left_Page":"向左翻页","BI-Transparent_Color":"透明","BI-Basic_Simple_Monday":"一","BI-Multi_Date_Year_End":"年末","BI-Time_Interval_Error_Text":"请保证开始时间早于/等于结束时间","BI-Basic_Time":"时间","BI-Basic_OK":"确定","BI-Basic_Sure":"确定","BI-Basic_Simple_Thursday":"四","BI-Multi_Date_Year_Prev":"年前","BI-Tiao_Data":"条数据","BI-Basic_Italic":"斜体","BI-Basic_Dynamic_Title":"动态时间","BI-Basic_Year":"年","BI-Basic_Single_Quarter":"季","BI-Basic_Month":"月","BI-Basic_Week":"周","BI-Basic_Day":"天","BI-Basic_Work_Day":"工作日","BI-Basic_Front":"前","BI-Basic_Behind":"后","BI-Basic_Empty":"空","BI-Basic_Month_End":"月末","BI-Basic_Month_Begin":"月初","BI-Basic_Year_End":"年末","BI-Basic_Year_Begin":"年初","BI-Basic_Quarter_End":"季末","BI-Basic_Quarter_Begin":"季初","BI-Basic_Week_End":"周末","BI-Basic_Week_Begin":"周初","BI-Basic_Current_Day":"当天","BI-Basic_Begin_Start":"初","BI-Basic_End_Stop":"末","BI-Basic_Current_Year":"今年","BI-Basic_Year_Fen":"年份","BI-Basic_Current_Month":"本月","BI-Basic_Current_Quarter":"本季度","BI-Basic_Year_Month":"年月","BI-Basic_Year_Quarter":"年季度","BI-Basic_Input_From_To_Number":"请输入{R1}的数值","BI-Basic_Input_Can_Not_Null":"输入框不能为空","BI-Basic_Date_Time_Error_Text":"日期格式示例:2015-3-11 00:00:00","BI-Basic_Or":"或","BI-Basic_And":"且","BI-Conf_Add_Formula":"添加公式","BI-Conf_Add_Condition":"添加条件","BI-Conf_Formula_And":"且公式条件","BI-Conf_Formula_Or":"或公式条件","BI-Conf_Condition_And":"且条件","BI-Conf_Condition_Or":"或条件","BI-Microsoft_YaHei":"微软雅黑","BI-Apple_Light":"苹方-light","BI-Font_Family":"字体","BI-Basic_Please_Input_Content":"请输入内容","BI-Word_Align_Center":"文字居中","BI-Basic_Please_Enter_Number_Between":"请输入{R1}-{R2}的值","BI-More_Than":"大于","BI-More_And_Equal":"大于等于","BI-Please_Enter_SQL":"请输入SQL","BI-Basic_Click_To_Add_Text":'+点击新增"{R1}"',"BI-Basic_Please_Select":"请选择","BI-Basic_Font_Color":"文字颜色","BI-Basic_Background_Color":"背景色","BI-Basic_Underline":"下划线","BI-Basic_Param_Month":"{R1}月","BI-Basic_Param_Day":"{R1}日","BI-Basic_Param_Quarter":"{R1}季度","BI-Basic_Param_Week_Count":"第{R1}周","BI-Basic_Param_Hour":"{R1}时","BI-Basic_Param_Minute":"{R1}分","BI-Basic_Param_Second":"{R1}秒","BI-Basic_Param_Year":"{R1}年","BI-Basic_Date_Day":"日","BI-Basic_Hour_Sin":"时","BI-Basic_Seconds":"秒","BI-Basic_Minute":"分","BI-Basic_Wan":"万","BI-Basic_Million":"百万","BI-Basic_Billion":"亿","BI-Basic_Quarter":"季度"},function(){var a={};BI.BufferPool={put:function(b,c){if(BI.isNotNull(a[b]))throw new Error("Buffer Pool has the key already!");a[b]=c},get:function(b){return a[b]}}}(),function(){var a={};BI.SharingPool={_Shared:a,put:function(b,c){a[b]=c},cat:function(){for(var b=Array.prototype.slice.call(arguments,0),c=a,d=0;d - * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim"` + * Build: `lodash core plus="debounce,throttle,get,findIndex,findLastIndex,findKey,findLastKey,isArrayLike,invert,invertBy,uniq,uniqBy,omit,omitBy,zip,unzip,rest,range,random,reject,intersection,drop,countBy,union,zipObject,initial,cloneDeep,clamp,isPlainObject,take,takeRight,without,difference,defaultsDeep,trim,merge"` * Copyright JS Foundation and other contributors * Released under MIT license * Based on Underscore.js 1.8.3 @@ -9,10082 +9,10118 @@ */ ;(function() { - /** Used as a safe reference for `undefined` in pre-ES5 environments. */ - var undefined; - - /** Used as the semantic version number. */ - var VERSION = '4.17.5'; - - /** Used as the size to enable large array optimizations. */ - var LARGE_ARRAY_SIZE = 200; - - /** Error message constants. */ - var FUNC_ERROR_TEXT = 'Expected a function'; - - /** Used to stand-in for `undefined` hash values. */ - var HASH_UNDEFINED = '__lodash_hash_undefined__'; - - /** Used as the maximum memoize cache size. */ - var MAX_MEMOIZE_SIZE = 500; - - /** Used as the internal argument placeholder. */ - var PLACEHOLDER = '__lodash_placeholder__'; - - /** Used to compose bitmasks for cloning. */ - var CLONE_DEEP_FLAG = 1, - CLONE_FLAT_FLAG = 2, - CLONE_SYMBOLS_FLAG = 4; - - /** Used to compose bitmasks for value comparisons. */ - var COMPARE_PARTIAL_FLAG = 1, - COMPARE_UNORDERED_FLAG = 2; - - /** Used to compose bitmasks for function metadata. */ - var WRAP_BIND_FLAG = 1, - WRAP_BIND_KEY_FLAG = 2, - WRAP_CURRY_BOUND_FLAG = 4, - WRAP_CURRY_FLAG = 8, - WRAP_CURRY_RIGHT_FLAG = 16, - WRAP_PARTIAL_FLAG = 32, - WRAP_PARTIAL_RIGHT_FLAG = 64, - WRAP_ARY_FLAG = 128, - WRAP_REARG_FLAG = 256, - WRAP_FLIP_FLAG = 512; - - /** Used to detect hot functions by number of calls within a span of milliseconds. */ - var HOT_COUNT = 800, - HOT_SPAN = 16; - - /** Used to indicate the type of lazy iteratees. */ - var LAZY_FILTER_FLAG = 1, - LAZY_MAP_FLAG = 2, - LAZY_WHILE_FLAG = 3; - - /** Used as references for various `Number` constants. */ - var INFINITY = 1 / 0, - MAX_SAFE_INTEGER = 9007199254740991, - MAX_INTEGER = 1.7976931348623157e+308, - NAN = 0 / 0; - - /** Used as references for the maximum length and index of an array. */ - var MAX_ARRAY_LENGTH = 4294967295; - - /** Used to associate wrap methods with their bit flags. */ - var wrapFlags = [ - ['ary', WRAP_ARY_FLAG], - ['bind', WRAP_BIND_FLAG], - ['bindKey', WRAP_BIND_KEY_FLAG], - ['curry', WRAP_CURRY_FLAG], - ['curryRight', WRAP_CURRY_RIGHT_FLAG], - ['flip', WRAP_FLIP_FLAG], - ['partial', WRAP_PARTIAL_FLAG], - ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], - ['rearg', WRAP_REARG_FLAG] - ]; - - /** `Object#toString` result references. */ - var argsTag = '[object Arguments]', - arrayTag = '[object Array]', - asyncTag = '[object AsyncFunction]', - boolTag = '[object Boolean]', - dateTag = '[object Date]', - errorTag = '[object Error]', - funcTag = '[object Function]', - genTag = '[object GeneratorFunction]', - mapTag = '[object Map]', - numberTag = '[object Number]', - nullTag = '[object Null]', - objectTag = '[object Object]', - promiseTag = '[object Promise]', - proxyTag = '[object Proxy]', - regexpTag = '[object RegExp]', - setTag = '[object Set]', - stringTag = '[object String]', - symbolTag = '[object Symbol]', - undefinedTag = '[object Undefined]', - weakMapTag = '[object WeakMap]'; - - var arrayBufferTag = '[object ArrayBuffer]', - dataViewTag = '[object DataView]', - float32Tag = '[object Float32Array]', - float64Tag = '[object Float64Array]', - int8Tag = '[object Int8Array]', - int16Tag = '[object Int16Array]', - int32Tag = '[object Int32Array]', - uint8Tag = '[object Uint8Array]', - uint8ClampedTag = '[object Uint8ClampedArray]', - uint16Tag = '[object Uint16Array]', - uint32Tag = '[object Uint32Array]'; - - /** Used to match HTML entities and HTML characters. */ - var reUnescapedHtml = /[&<>"']/g, - reHasUnescapedHtml = RegExp(reUnescapedHtml.source); - - /** Used to match property names within property paths. */ - var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, - reIsPlainProp = /^\w*$/, - rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; - - /** - * Used to match `RegExp` - * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). - */ - var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; - - /** Used to match leading and trailing whitespace. */ - var reTrim = /^\s+|\s+$/g; - - /** Used to match wrap detail comments. */ - var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, - reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, - reSplitDetails = /,? & /; - - /** Used to match backslashes in property paths. */ - var reEscapeChar = /\\(\\)?/g; - - /** Used to match `RegExp` flags from their coerced string values. */ - var reFlags = /\w*$/; - - /** Used to detect bad signed hexadecimal string values. */ - var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; - - /** Used to detect binary string values. */ - var reIsBinary = /^0b[01]+$/i; - - /** Used to detect host constructors (Safari). */ - var reIsHostCtor = /^\[object .+?Constructor\]$/; - - /** Used to detect octal string values. */ - var reIsOctal = /^0o[0-7]+$/i; - - /** Used to detect unsigned integer values. */ - var reIsUint = /^(?:0|[1-9]\d*)$/; - - /** Used to compose unicode character classes. */ - var rsAstralRange = '\\ud800-\\udfff', - rsComboMarksRange = '\\u0300-\\u036f', - reComboHalfMarksRange = '\\ufe20-\\ufe2f', - rsComboSymbolsRange = '\\u20d0-\\u20ff', - rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, - rsVarRange = '\\ufe0e\\ufe0f'; - - /** Used to compose unicode capture groups. */ - var rsAstral = '[' + rsAstralRange + ']', - rsCombo = '[' + rsComboRange + ']', - rsFitz = '\\ud83c[\\udffb-\\udfff]', - rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', - rsNonAstral = '[^' + rsAstralRange + ']', - rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', - rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', - rsZWJ = '\\u200d'; - - /** Used to compose unicode regexes. */ - var reOptMod = rsModifier + '?', - rsOptVar = '[' + rsVarRange + ']?', - rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', - rsSeq = rsOptVar + reOptMod + rsOptJoin, - rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; - - /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ - var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); - - /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ - var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); - - /** Used to identify `toStringTag` values of typed arrays. */ - var typedArrayTags = {}; - typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = - typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = - typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = - typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = - typedArrayTags[uint32Tag] = true; - typedArrayTags[argsTag] = typedArrayTags[arrayTag] = - typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = - typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = - typedArrayTags[errorTag] = typedArrayTags[funcTag] = - typedArrayTags[mapTag] = typedArrayTags[numberTag] = - typedArrayTags[objectTag] = typedArrayTags[regexpTag] = - typedArrayTags[setTag] = typedArrayTags[stringTag] = - typedArrayTags[weakMapTag] = false; - - /** Used to identify `toStringTag` values supported by `_.clone`. */ - var cloneableTags = {}; - cloneableTags[argsTag] = cloneableTags[arrayTag] = - cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = - cloneableTags[boolTag] = cloneableTags[dateTag] = - cloneableTags[float32Tag] = cloneableTags[float64Tag] = - cloneableTags[int8Tag] = cloneableTags[int16Tag] = - cloneableTags[int32Tag] = cloneableTags[mapTag] = - cloneableTags[numberTag] = cloneableTags[objectTag] = - cloneableTags[regexpTag] = cloneableTags[setTag] = - cloneableTags[stringTag] = cloneableTags[symbolTag] = - cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = - cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; - cloneableTags[errorTag] = cloneableTags[funcTag] = - cloneableTags[weakMapTag] = false; - - /** Used to map characters to HTML entities. */ - var htmlEscapes = { - '&': '&', - '<': '<', - '>': '>', - '"': '"', - "'": ''' - }; - - /** Built-in method references without a dependency on `root`. */ - var freeParseFloat = parseFloat, - freeParseInt = parseInt; - - /** Detect free variable `global` from Node.js. */ - var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; - - /** Detect free variable `self`. */ - var freeSelf = typeof self == 'object' && self && self.Object === Object && self; - - /** Used as a reference to the global object. */ - var root = freeGlobal || freeSelf || Function('return this')(); - - /** Detect free variable `exports`. */ - var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; - - /** Detect free variable `module`. */ - var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; - - /** Detect the popular CommonJS extension `module.exports`. */ - var moduleExports = freeModule && freeModule.exports === freeExports; - - /** Detect free variable `process` from Node.js. */ - var freeProcess = moduleExports && freeGlobal.process; - - /** Used to access faster Node.js helpers. */ - var nodeUtil = (function() { - try { - return freeProcess && freeProcess.binding && freeProcess.binding('util'); - } catch (e) {} - }()); - - /* Node.js helper references. */ - var nodeIsDate = nodeUtil && nodeUtil.isDate, - nodeIsMap = nodeUtil && nodeUtil.isMap, - nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, - nodeIsSet = nodeUtil && nodeUtil.isSet, - nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; - - /*--------------------------------------------------------------------------*/ - - /** - * A faster alternative to `Function#apply`, this function invokes `func` - * with the `this` binding of `thisArg` and the arguments of `args`. - * - * @private - * @param {Function} func The function to invoke. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} args The arguments to invoke `func` with. - * @returns {*} Returns the result of `func`. - */ - function apply(func, thisArg, args) { - switch (args.length) { - case 0: return func.call(thisArg); - case 1: return func.call(thisArg, args[0]); - case 2: return func.call(thisArg, args[0], args[1]); - case 3: return func.call(thisArg, args[0], args[1], args[2]); - } - return func.apply(thisArg, args); - } - - /** - * A specialized version of `baseAggregator` for arrays. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function arrayAggregator(array, setter, iteratee, accumulator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - var value = array[index]; - setter(accumulator, value, iteratee(value), array); - } - return accumulator; - } - - /** - * A specialized version of `_.forEach` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns `array`. - */ - function arrayEach(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (iteratee(array[index], index, array) === false) { - break; - } - } - return array; - } - - /** - * A specialized version of `_.every` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - */ - function arrayEvery(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (!predicate(array[index], index, array)) { - return false; - } - } - return true; - } - - /** - * A specialized version of `_.filter` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function arrayFilter(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (predicate(value, index, array)) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * A specialized version of `_.includes` for arrays without support for - * specifying an index to search from. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludes(array, value) { - var length = array == null ? 0 : array.length; - return !!length && baseIndexOf(array, value, 0) > -1; - } - - /** - * This function is like `arrayIncludes` except that it accepts a comparator. - * - * @private - * @param {Array} [array] The array to inspect. - * @param {*} target The value to search for. - * @param {Function} comparator The comparator invoked per element. - * @returns {boolean} Returns `true` if `target` is found, else `false`. - */ - function arrayIncludesWith(array, value, comparator) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (comparator(value, array[index])) { - return true; - } - } - return false; - } - - /** - * A specialized version of `_.map` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function arrayMap(array, iteratee) { - var index = -1, - length = array == null ? 0 : array.length, - result = Array(length); - - while (++index < length) { - result[index] = iteratee(array[index], index, array); - } - return result; - } - - /** - * Appends the elements of `values` to `array`. - * - * @private - * @param {Array} array The array to modify. - * @param {Array} values The values to append. - * @returns {Array} Returns `array`. - */ - function arrayPush(array, values) { - var index = -1, - length = values.length, - offset = array.length; - - while (++index < length) { - array[offset + index] = values[index]; - } - return array; - } - - /** - * A specialized version of `_.reduce` for arrays without support for - * iteratee shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @param {boolean} [initAccum] Specify using the first element of `array` as - * the initial value. - * @returns {*} Returns the accumulated value. - */ - function arrayReduce(array, iteratee, accumulator, initAccum) { - var index = -1, - length = array == null ? 0 : array.length; - - if (initAccum && length) { - accumulator = array[++index]; - } - while (++index < length) { - accumulator = iteratee(accumulator, array[index], index, array); - } - return accumulator; - } - - /** - * A specialized version of `_.some` for arrays without support for iteratee - * shorthands. - * - * @private - * @param {Array} [array] The array to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function arraySome(array, predicate) { - var index = -1, - length = array == null ? 0 : array.length; - - while (++index < length) { - if (predicate(array[index], index, array)) { - return true; - } - } - return false; - } - - /** - * Gets the size of an ASCII `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - var asciiSize = baseProperty('length'); - - /** - * Converts an ASCII `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function asciiToArray(string) { - return string.split(''); - } - - /** - * The base implementation of methods like `_.findKey` and `_.findLastKey`, - * without support for iteratee shorthands, which iterates over `collection` - * using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the found element or its key, else `undefined`. - */ - function baseFindKey(collection, predicate, eachFunc) { - var result; - eachFunc(collection, function(value, key, collection) { - if (predicate(value, key, collection)) { - result = key; - return false; - } - }); - return result; - } - - /** - * The base implementation of `_.findIndex` and `_.findLastIndex` without - * support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} predicate The function invoked per iteration. - * @param {number} fromIndex The index to search from. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseFindIndex(array, predicate, fromIndex, fromRight) { - var length = array.length, - index = fromIndex + (fromRight ? 1 : -1); - - while ((fromRight ? index-- : ++index < length)) { - if (predicate(array[index], index, array)) { - return index; - } - } - return -1; - } - - /** - * The base implementation of `_.indexOf` without `fromIndex` bounds checks. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function baseIndexOf(array, value, fromIndex) { - return value === value - ? strictIndexOf(array, value, fromIndex) - : baseFindIndex(array, baseIsNaN, fromIndex); - } - - /** - * The base implementation of `_.isNaN` without support for number objects. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - */ - function baseIsNaN(value) { - return value !== value; - } - - /** - * The base implementation of `_.property` without support for deep paths. - * - * @private - * @param {string} key The key of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function baseProperty(key) { - return function(object) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.propertyOf` without support for deep paths. - * - * @private - * @param {Object} object The object to query. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyOf(object) { - return function(key) { - return object == null ? undefined : object[key]; - }; - } - - /** - * The base implementation of `_.reduce` and `_.reduceRight`, without support - * for iteratee shorthands, which iterates over `collection` using `eachFunc`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {*} accumulator The initial value. - * @param {boolean} initAccum Specify using the first or last element of - * `collection` as the initial value. - * @param {Function} eachFunc The function to iterate over `collection`. - * @returns {*} Returns the accumulated value. - */ - function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { - eachFunc(collection, function(value, index, collection) { - accumulator = initAccum - ? (initAccum = false, value) - : iteratee(accumulator, value, index, collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.sortBy` which uses `comparer` to define the - * sort order of `array` and replaces criteria objects with their corresponding - * values. - * - * @private - * @param {Array} array The array to sort. - * @param {Function} comparer The function to define sort order. - * @returns {Array} Returns `array`. - */ - function baseSortBy(array, comparer) { - var length = array.length; - - array.sort(comparer); - while (length--) { - array[length] = array[length].value; - } - return array; - } - - /** - * The base implementation of `_.times` without support for iteratee shorthands - * or max array length checks. - * - * @private - * @param {number} n The number of times to invoke `iteratee`. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the array of results. - */ - function baseTimes(n, iteratee) { - var index = -1, - result = Array(n); - - while (++index < n) { - result[index] = iteratee(index); - } - return result; - } - - /** - * The base implementation of `_.unary` without support for storing metadata. - * - * @private - * @param {Function} func The function to cap arguments for. - * @returns {Function} Returns the new capped function. - */ - function baseUnary(func) { - return function(value) { - return func(value); - }; - } - - /** - * The base implementation of `_.values` and `_.valuesIn` which creates an - * array of `object` property values corresponding to the property names - * of `props`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} props The property names to get values for. - * @returns {Object} Returns the array of property values. - */ - function baseValues(object, props) { - return arrayMap(props, function(key) { - return object[key]; - }); - } - - /** - * Checks if a `cache` value for `key` exists. - * - * @private - * @param {Object} cache The cache to query. - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function cacheHas(cache, key) { - return cache.has(key); - } - - /** - * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the first unmatched string symbol. - */ - function charsStartIndex(strSymbols, chrSymbols) { - var index = -1, - length = strSymbols.length; - - while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol - * that is not found in the character symbols. - * - * @private - * @param {Array} strSymbols The string symbols to inspect. - * @param {Array} chrSymbols The character symbols to find. - * @returns {number} Returns the index of the last unmatched string symbol. - */ - function charsEndIndex(strSymbols, chrSymbols) { - var index = strSymbols.length; - - while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} - return index; - } - - /** - * Gets the number of `placeholder` occurrences in `array`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} placeholder The placeholder to search for. - * @returns {number} Returns the placeholder count. - */ - function countHolders(array, placeholder) { - var length = array.length, - result = 0; - - while (length--) { - if (array[length] === placeholder) { - ++result; - } - } - return result; - } - - /** - * Used by `_.escape` to convert characters to HTML entities. - * - * @private - * @param {string} chr The matched character to escape. - * @returns {string} Returns the escaped character. - */ - var escapeHtmlChar = basePropertyOf(htmlEscapes); - - /** - * Gets the value at `key` of `object`. - * - * @private - * @param {Object} [object] The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function getValue(object, key) { - return object == null ? undefined : object[key]; - } - - /** - * Checks if `string` contains Unicode symbols. - * - * @private - * @param {string} string The string to inspect. - * @returns {boolean} Returns `true` if a symbol is found, else `false`. - */ - function hasUnicode(string) { - return reHasUnicode.test(string); - } - - /** - * Converts `iterator` to an array. - * - * @private - * @param {Object} iterator The iterator to convert. - * @returns {Array} Returns the converted array. - */ - function iteratorToArray(iterator) { - var data, - result = []; - - while (!(data = iterator.next()).done) { - result.push(data.value); - } - return result; - } - - /** - * Converts `map` to its key-value pairs. - * - * @private - * @param {Object} map The map to convert. - * @returns {Array} Returns the key-value pairs. - */ - function mapToArray(map) { - var index = -1, - result = Array(map.size); - - map.forEach(function(value, key) { - result[++index] = [key, value]; - }); - return result; - } - - /** - * Creates a unary function that invokes `func` with its argument transformed. - * - * @private - * @param {Function} func The function to wrap. - * @param {Function} transform The argument transform. - * @returns {Function} Returns the new function. - */ - function overArg(func, transform) { - return function(arg) { - return func(transform(arg)); - }; - } - - /** - * Replaces all `placeholder` elements in `array` with an internal placeholder - * and returns an array of their indexes. - * - * @private - * @param {Array} array The array to modify. - * @param {*} placeholder The placeholder to replace. - * @returns {Array} Returns the new array of placeholder indexes. - */ - function replaceHolders(array, placeholder) { - var index = -1, - length = array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value === placeholder || value === PLACEHOLDER) { - array[index] = PLACEHOLDER; - result[resIndex++] = index; - } - } - return result; - } - - /** - * Gets the value at `key`, unless `key` is "__proto__". - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the property to get. - * @returns {*} Returns the property value. - */ - function safeGet(object, key) { - return key == '__proto__' - ? undefined - : object[key]; - } - - /** - * Converts `set` to an array of its values. - * - * @private - * @param {Object} set The set to convert. - * @returns {Array} Returns the values. - */ - function setToArray(set) { - var index = -1, - result = Array(set.size); - - set.forEach(function(value) { - result[++index] = value; - }); - return result; - } - - /** - * A specialized version of `_.indexOf` which performs strict equality - * comparisons of values, i.e. `===`. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} fromIndex The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function strictIndexOf(array, value, fromIndex) { - var index = fromIndex - 1, - length = array.length; - - while (++index < length) { - if (array[index] === value) { - return index; - } - } - return -1; - } - - /** - * Gets the number of symbols in `string`. - * - * @private - * @param {string} string The string to inspect. - * @returns {number} Returns the string size. - */ - function stringSize(string) { - return hasUnicode(string) - ? unicodeSize(string) - : asciiSize(string); - } - - /** - * Converts `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function stringToArray(string) { - return hasUnicode(string) - ? unicodeToArray(string) - : asciiToArray(string); - } - - /** - * Gets the size of a Unicode `string`. - * - * @private - * @param {string} string The string inspect. - * @returns {number} Returns the string size. - */ - function unicodeSize(string) { - var result = reUnicode.lastIndex = 0; - while (reUnicode.test(string)) { - ++result; - } - return result; - } - - /** - * Converts a Unicode `string` to an array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the converted array. - */ - function unicodeToArray(string) { - return string.match(reUnicode) || []; - } - - /*--------------------------------------------------------------------------*/ - - /** Used for built-in method references. */ - var arrayProto = Array.prototype, - funcProto = Function.prototype, - objectProto = Object.prototype; - - /** Used to detect overreaching core-js shims. */ - var coreJsData = root['__core-js_shared__']; - - /** Used to resolve the decompiled source of functions. */ - var funcToString = funcProto.toString; - - /** Used to check objects for own properties. */ - var hasOwnProperty = objectProto.hasOwnProperty; - - /** Used to generate unique IDs. */ - var idCounter = 0; - - /** Used to detect methods masquerading as native. */ - var maskSrcKey = (function() { - var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); - return uid ? ('Symbol(src)_1.' + uid) : ''; - }()); - - /** - * Used to resolve the - * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) - * of values. - */ - var nativeObjectToString = objectProto.toString; - - /** Used to infer the `Object` constructor. */ - var objectCtorString = funcToString.call(Object); - - /** Used to restore the original `_` reference in `_.noConflict`. */ - var oldDash = root._; - - /** Used to detect if a method is native. */ - var reIsNative = RegExp('^' + - funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') - .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' - ); - - /** Built-in value references. */ - var Buffer = moduleExports ? root.Buffer : undefined, - Symbol = root.Symbol, - Uint8Array = root.Uint8Array, - allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, - getPrototype = overArg(Object.getPrototypeOf, Object), - objectCreate = Object.create, - propertyIsEnumerable = objectProto.propertyIsEnumerable, - splice = arrayProto.splice, - spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, - symIterator = Symbol ? Symbol.iterator : undefined, - symToStringTag = Symbol ? Symbol.toStringTag : undefined; - - var defineProperty = (function() { - try { - var func = getNative(Object, 'defineProperty'); - func({}, '', {}); - return func; - } catch (e) {} - }()); - - /* Built-in method references for those with the same name as other `lodash` methods. */ - var nativeCeil = Math.ceil, - nativeFloor = Math.floor, - nativeGetSymbols = Object.getOwnPropertySymbols, - nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, - nativeIsFinite = root.isFinite, - nativeKeys = overArg(Object.keys, Object), - nativeMax = Math.max, - nativeMin = Math.min, - nativeNow = Date.now, - nativeRandom = Math.random, - nativeReverse = arrayProto.reverse; - - /* Built-in method references that are verified to be native. */ - var DataView = getNative(root, 'DataView'), - Map = getNative(root, 'Map'), - Promise = getNative(root, 'Promise'), - Set = getNative(root, 'Set'), - WeakMap = getNative(root, 'WeakMap'), - nativeCreate = getNative(Object, 'create'); - - /** Used to store function metadata. */ - var metaMap = WeakMap && new WeakMap; - - /** Used to lookup unminified function names. */ - var realNames = {}; - - /** Used to detect maps, sets, and weakmaps. */ - var dataViewCtorString = toSource(DataView), - mapCtorString = toSource(Map), - promiseCtorString = toSource(Promise), - setCtorString = toSource(Set), - weakMapCtorString = toSource(WeakMap); - - /** Used to convert symbols to primitives and strings. */ - var symbolProto = Symbol ? Symbol.prototype : undefined, - symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, - symbolToString = symbolProto ? symbolProto.toString : undefined; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` object which wraps `value` to enable implicit method - * chain sequences. Methods that operate on and return arrays, collections, - * and functions can be chained together. Methods that retrieve a single value - * or may return a primitive value will automatically end the chain sequence - * and return the unwrapped value. Otherwise, the value must be unwrapped - * with `_#value`. - * - * Explicit chain sequences, which must be unwrapped with `_#value`, may be - * enabled using `_.chain`. - * - * The execution of chained methods is lazy, that is, it's deferred until - * `_#value` is implicitly or explicitly called. - * - * Lazy evaluation allows several methods to support shortcut fusion. - * Shortcut fusion is an optimization to merge iteratee calls; this avoids - * the creation of intermediate arrays and can greatly reduce the number of - * iteratee executions. Sections of a chain sequence qualify for shortcut - * fusion if the section is applied to an array and iteratees accept only - * one argument. The heuristic for whether a section qualifies for shortcut - * fusion is subject to change. - * - * Chaining is supported in custom builds as long as the `_#value` method is - * directly or indirectly included in the build. - * - * In addition to lodash methods, wrappers have `Array` and `String` methods. - * - * The wrapper `Array` methods are: - * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` - * - * The wrapper `String` methods are: - * `replace` and `split` - * - * The wrapper methods that support shortcut fusion are: - * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, - * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, - * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` - * - * The chainable wrapper methods are: - * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, - * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, - * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, - * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, - * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, - * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, - * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, - * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, - * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, - * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, - * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, - * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, - * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, - * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, - * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, - * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, - * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, - * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, - * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, - * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, - * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, - * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, - * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, - * `zipObject`, `zipObjectDeep`, and `zipWith` - * - * The wrapper methods that are **not** chainable by default are: - * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, - * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, - * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, - * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, - * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, - * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, - * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, - * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, - * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, - * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, - * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, - * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, - * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, - * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, - * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, - * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, - * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, - * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, - * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, - * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, - * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, - * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, - * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, - * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, - * `upperFirst`, `value`, and `words` - * - * @name _ - * @constructor - * @category Seq - * @param {*} value The value to wrap in a `lodash` instance. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2, 3]); - * - * // Returns an unwrapped value. - * wrapped.reduce(_.add); - * // => 6 - * - * // Returns a wrapped value. - * var squares = wrapped.map(square); - * - * _.isArray(squares); - * // => false - * - * _.isArray(squares.value()); - * // => true - */ - function lodash(value) { - if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { - if (value instanceof LodashWrapper) { - return value; - } - if (hasOwnProperty.call(value, '__wrapped__')) { - return wrapperClone(value); - } - } - return new LodashWrapper(value); - } - - /** - * The base implementation of `_.create` without support for assigning - * properties to the created object. - * - * @private - * @param {Object} proto The object to inherit from. - * @returns {Object} Returns the new object. - */ - var baseCreate = (function() { - function object() {} - return function(proto) { - if (!isObject(proto)) { - return {}; - } - if (objectCreate) { - return objectCreate(proto); - } - object.prototype = proto; - var result = new object; - object.prototype = undefined; - return result; - }; - }()); - - /** - * The function whose prototype chain sequence wrappers inherit from. - * - * @private - */ - function baseLodash() { - // No operation performed. - } - - /** - * The base constructor for creating `lodash` wrapper objects. - * - * @private - * @param {*} value The value to wrap. - * @param {boolean} [chainAll] Enable explicit method chain sequences. - */ - function LodashWrapper(value, chainAll) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__chain__ = !!chainAll; - this.__index__ = 0; - this.__values__ = undefined; - } - - // Ensure wrappers are instances of `baseLodash`. - lodash.prototype = baseLodash.prototype; - lodash.prototype.constructor = lodash; - - LodashWrapper.prototype = baseCreate(baseLodash.prototype); - LodashWrapper.prototype.constructor = LodashWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. - * - * @private - * @constructor - * @param {*} value The value to wrap. - */ - function LazyWrapper(value) { - this.__wrapped__ = value; - this.__actions__ = []; - this.__dir__ = 1; - this.__filtered__ = false; - this.__iteratees__ = []; - this.__takeCount__ = MAX_ARRAY_LENGTH; - this.__views__ = []; - } - - /** - * Creates a clone of the lazy wrapper object. - * - * @private - * @name clone - * @memberOf LazyWrapper - * @returns {Object} Returns the cloned `LazyWrapper` object. - */ - function lazyClone() { - var result = new LazyWrapper(this.__wrapped__); - result.__actions__ = copyArray(this.__actions__); - result.__dir__ = this.__dir__; - result.__filtered__ = this.__filtered__; - result.__iteratees__ = copyArray(this.__iteratees__); - result.__takeCount__ = this.__takeCount__; - result.__views__ = copyArray(this.__views__); - return result; - } - - /** - * Reverses the direction of lazy iteration. - * - * @private - * @name reverse - * @memberOf LazyWrapper - * @returns {Object} Returns the new reversed `LazyWrapper` object. - */ - function lazyReverse() { - if (this.__filtered__) { - var result = new LazyWrapper(this); - result.__dir__ = -1; - result.__filtered__ = true; - } else { - result = this.clone(); - result.__dir__ *= -1; - } - return result; - } - - /** - * Extracts the unwrapped value from its lazy wrapper. - * - * @private - * @name value - * @memberOf LazyWrapper - * @returns {*} Returns the unwrapped value. - */ - function lazyValue() { - var array = this.__wrapped__.value(), - dir = this.__dir__, - isArr = isArray(array), - isRight = dir < 0, - arrLength = isArr ? array.length : 0, - view = getView(0, arrLength, this.__views__), - start = view.start, - end = view.end, - length = end - start, - index = isRight ? end : (start - 1), - iteratees = this.__iteratees__, - iterLength = iteratees.length, - resIndex = 0, - takeCount = nativeMin(length, this.__takeCount__); - - if (!isArr || (!isRight && arrLength == length && takeCount == length)) { - return baseWrapperValue(array, this.__actions__); - } - var result = []; - - outer: - while (length-- && resIndex < takeCount) { - index += dir; - - var iterIndex = -1, - value = array[index]; - - while (++iterIndex < iterLength) { - var data = iteratees[iterIndex], - iteratee = data.iteratee, - type = data.type, - computed = iteratee(value); - - if (type == LAZY_MAP_FLAG) { - value = computed; - } else if (!computed) { - if (type == LAZY_FILTER_FLAG) { - continue outer; - } else { - break outer; - } - } - } - result[resIndex++] = value; - } - return result; - } - - // Ensure `LazyWrapper` is an instance of `baseLodash`. - LazyWrapper.prototype = baseCreate(baseLodash.prototype); - LazyWrapper.prototype.constructor = LazyWrapper; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a hash object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Hash(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the hash. - * - * @private - * @name clear - * @memberOf Hash - */ - function hashClear() { - this.__data__ = nativeCreate ? nativeCreate(null) : {}; - this.size = 0; - } - - /** - * Removes `key` and its value from the hash. - * - * @private - * @name delete - * @memberOf Hash - * @param {Object} hash The hash to modify. - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function hashDelete(key) { - var result = this.has(key) && delete this.__data__[key]; - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the hash value for `key`. - * - * @private - * @name get - * @memberOf Hash - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function hashGet(key) { - var data = this.__data__; - if (nativeCreate) { - var result = data[key]; - return result === HASH_UNDEFINED ? undefined : result; - } - return hasOwnProperty.call(data, key) ? data[key] : undefined; - } - - /** - * Checks if a hash value for `key` exists. - * - * @private - * @name has - * @memberOf Hash - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function hashHas(key) { - var data = this.__data__; - return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); - } - - /** - * Sets the hash `key` to `value`. - * - * @private - * @name set - * @memberOf Hash - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the hash instance. - */ - function hashSet(key, value) { - var data = this.__data__; - this.size += this.has(key) ? 0 : 1; - data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; - return this; - } - - // Add methods to `Hash`. - Hash.prototype.clear = hashClear; - Hash.prototype['delete'] = hashDelete; - Hash.prototype.get = hashGet; - Hash.prototype.has = hashHas; - Hash.prototype.set = hashSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an list cache object. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function ListCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the list cache. - * - * @private - * @name clear - * @memberOf ListCache - */ - function listCacheClear() { - this.__data__ = []; - this.size = 0; - } - - /** - * Removes `key` and its value from the list cache. - * - * @private - * @name delete - * @memberOf ListCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function listCacheDelete(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - return false; - } - var lastIndex = data.length - 1; - if (index == lastIndex) { - data.pop(); - } else { - splice.call(data, index, 1); - } - --this.size; - return true; - } - - /** - * Gets the list cache value for `key`. - * - * @private - * @name get - * @memberOf ListCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function listCacheGet(key) { - var data = this.__data__, - index = assocIndexOf(data, key); - - return index < 0 ? undefined : data[index][1]; - } - - /** - * Checks if a list cache value for `key` exists. - * - * @private - * @name has - * @memberOf ListCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function listCacheHas(key) { - return assocIndexOf(this.__data__, key) > -1; - } - - /** - * Sets the list cache `key` to `value`. - * - * @private - * @name set - * @memberOf ListCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the list cache instance. - */ - function listCacheSet(key, value) { - var data = this.__data__, - index = assocIndexOf(data, key); - - if (index < 0) { - ++this.size; - data.push([key, value]); - } else { - data[index][1] = value; - } - return this; - } - - // Add methods to `ListCache`. - ListCache.prototype.clear = listCacheClear; - ListCache.prototype['delete'] = listCacheDelete; - ListCache.prototype.get = listCacheGet; - ListCache.prototype.has = listCacheHas; - ListCache.prototype.set = listCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a map cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function MapCache(entries) { - var index = -1, - length = entries == null ? 0 : entries.length; - - this.clear(); - while (++index < length) { - var entry = entries[index]; - this.set(entry[0], entry[1]); - } - } - - /** - * Removes all key-value entries from the map. - * - * @private - * @name clear - * @memberOf MapCache - */ - function mapCacheClear() { - this.size = 0; - this.__data__ = { - 'hash': new Hash, - 'map': new (Map || ListCache), - 'string': new Hash - }; - } - - /** - * Removes `key` and its value from the map. - * - * @private - * @name delete - * @memberOf MapCache - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function mapCacheDelete(key) { - var result = getMapData(this, key)['delete'](key); - this.size -= result ? 1 : 0; - return result; - } - - /** - * Gets the map value for `key`. - * - * @private - * @name get - * @memberOf MapCache - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function mapCacheGet(key) { - return getMapData(this, key).get(key); - } - - /** - * Checks if a map value for `key` exists. - * - * @private - * @name has - * @memberOf MapCache - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function mapCacheHas(key) { - return getMapData(this, key).has(key); - } - - /** - * Sets the map `key` to `value`. - * - * @private - * @name set - * @memberOf MapCache - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the map cache instance. - */ - function mapCacheSet(key, value) { - var data = getMapData(this, key), - size = data.size; - - data.set(key, value); - this.size += data.size == size ? 0 : 1; - return this; - } - - // Add methods to `MapCache`. - MapCache.prototype.clear = mapCacheClear; - MapCache.prototype['delete'] = mapCacheDelete; - MapCache.prototype.get = mapCacheGet; - MapCache.prototype.has = mapCacheHas; - MapCache.prototype.set = mapCacheSet; - - /*------------------------------------------------------------------------*/ - - /** - * - * Creates an array cache object to store unique values. - * - * @private - * @constructor - * @param {Array} [values] The values to cache. - */ - function SetCache(values) { - var index = -1, - length = values == null ? 0 : values.length; - - this.__data__ = new MapCache; - while (++index < length) { - this.add(values[index]); - } - } - - /** - * Adds `value` to the array cache. - * - * @private - * @name add - * @memberOf SetCache - * @alias push - * @param {*} value The value to cache. - * @returns {Object} Returns the cache instance. - */ - function setCacheAdd(value) { - this.__data__.set(value, HASH_UNDEFINED); - return this; - } - - /** - * Checks if `value` is in the array cache. - * - * @private - * @name has - * @memberOf SetCache - * @param {*} value The value to search for. - * @returns {number} Returns `true` if `value` is found, else `false`. - */ - function setCacheHas(value) { - return this.__data__.has(value); - } - - // Add methods to `SetCache`. - SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; - SetCache.prototype.has = setCacheHas; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a stack cache object to store key-value pairs. - * - * @private - * @constructor - * @param {Array} [entries] The key-value pairs to cache. - */ - function Stack(entries) { - var data = this.__data__ = new ListCache(entries); - this.size = data.size; - } - - /** - * Removes all key-value entries from the stack. - * - * @private - * @name clear - * @memberOf Stack - */ - function stackClear() { - this.__data__ = new ListCache; - this.size = 0; - } - - /** - * Removes `key` and its value from the stack. - * - * @private - * @name delete - * @memberOf Stack - * @param {string} key The key of the value to remove. - * @returns {boolean} Returns `true` if the entry was removed, else `false`. - */ - function stackDelete(key) { - var data = this.__data__, - result = data['delete'](key); - - this.size = data.size; - return result; - } - - /** - * Gets the stack value for `key`. - * - * @private - * @name get - * @memberOf Stack - * @param {string} key The key of the value to get. - * @returns {*} Returns the entry value. - */ - function stackGet(key) { - return this.__data__.get(key); - } - - /** - * Checks if a stack value for `key` exists. - * - * @private - * @name has - * @memberOf Stack - * @param {string} key The key of the entry to check. - * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. - */ - function stackHas(key) { - return this.__data__.has(key); - } - - /** - * Sets the stack `key` to `value`. - * - * @private - * @name set - * @memberOf Stack - * @param {string} key The key of the value to set. - * @param {*} value The value to set. - * @returns {Object} Returns the stack cache instance. - */ - function stackSet(key, value) { - var data = this.__data__; - if (data instanceof ListCache) { - var pairs = data.__data__; - if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { - pairs.push([key, value]); - this.size = ++data.size; - return this; - } - data = this.__data__ = new MapCache(pairs); - } - data.set(key, value); - this.size = data.size; - return this; - } - - // Add methods to `Stack`. - Stack.prototype.clear = stackClear; - Stack.prototype['delete'] = stackDelete; - Stack.prototype.get = stackGet; - Stack.prototype.has = stackHas; - Stack.prototype.set = stackSet; - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array of the enumerable property names of the array-like `value`. - * - * @private - * @param {*} value The value to query. - * @param {boolean} inherited Specify returning inherited property names. - * @returns {Array} Returns the array of property names. - */ - function arrayLikeKeys(value, inherited) { - var isArr = isArray(value), - isArg = !isArr && isArguments(value), - isBuff = !isArr && !isArg && isBuffer(value), - isType = !isArr && !isArg && !isBuff && isTypedArray(value), - skipIndexes = isArr || isArg || isBuff || isType, - result = skipIndexes ? baseTimes(value.length, String) : [], - length = result.length; - - for (var key in value) { - if ((inherited || hasOwnProperty.call(value, key)) && - !(skipIndexes && ( - // Safari 9 has enumerable `arguments.length` in strict mode. - key == 'length' || - // Node.js 0.10 has enumerable non-index properties on buffers. - (isBuff && (key == 'offset' || key == 'parent')) || - // PhantomJS 2 has enumerable non-index properties on typed arrays. - (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || - // Skip index properties. - isIndex(key, length) - ))) { - result.push(key); - } - } - return result; - } - - /** - * This function is like `assignValue` except that it doesn't assign - * `undefined` values. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignMergeValue(object, key, value) { - if ((value !== undefined && !eq(object[key], value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Assigns `value` to `key` of `object` if the existing value is not equivalent - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function assignValue(object, key, value) { - var objValue = object[key]; - if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || - (value === undefined && !(key in object))) { - baseAssignValue(object, key, value); - } - } - - /** - * Gets the index at which the `key` is found in `array` of key-value pairs. - * - * @private - * @param {Array} array The array to inspect. - * @param {*} key The key to search for. - * @returns {number} Returns the index of the matched value, else `-1`. - */ - function assocIndexOf(array, key) { - var length = array.length; - while (length--) { - if (eq(array[length][0], key)) { - return length; - } - } - return -1; - } - - /** - * Aggregates elements of `collection` on `accumulator` with keys transformed - * by `iteratee` and values set by `setter`. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform keys. - * @param {Object} accumulator The initial aggregated object. - * @returns {Function} Returns `accumulator`. - */ - function baseAggregator(collection, setter, iteratee, accumulator) { - baseEach(collection, function(value, key, collection) { - setter(accumulator, value, iteratee(value), collection); - }); - return accumulator; - } - - /** - * The base implementation of `_.assign` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssign(object, source) { - return object && copyObject(source, keys(source), object); - } - - /** - * The base implementation of `_.assignIn` without support for multiple sources - * or `customizer` functions. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @returns {Object} Returns `object`. - */ - function baseAssignIn(object, source) { - return object && copyObject(source, keysIn(source), object); - } - - /** - * The base implementation of `assignValue` and `assignMergeValue` without - * value checks. - * - * @private - * @param {Object} object The object to modify. - * @param {string} key The key of the property to assign. - * @param {*} value The value to assign. - */ - function baseAssignValue(object, key, value) { - if (key == '__proto__' && defineProperty) { - defineProperty(object, key, { - 'configurable': true, - 'enumerable': true, - 'value': value, - 'writable': true - }); - } else { - object[key] = value; - } - } - - /** - * The base implementation of `_.at` without support for individual paths. - * - * @private - * @param {Object} object The object to iterate over. - * @param {string[]} paths The property paths to pick. - * @returns {Array} Returns the picked elements. - */ - function baseAt(object, paths) { - var index = -1, - length = paths.length, - result = Array(length), - skip = object == null; - - while (++index < length) { - result[index] = skip ? undefined : get(object, paths[index]); - } - return result; - } - - /** - * The base implementation of `_.clamp` which doesn't coerce arguments. - * - * @private - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - */ - function baseClamp(number, lower, upper) { - if (number === number) { - if (upper !== undefined) { - number = number <= upper ? number : upper; - } - if (lower !== undefined) { - number = number >= lower ? number : lower; - } - } - return number; - } - - /** - * The base implementation of `_.clone` and `_.cloneDeep` which tracks - * traversed objects. - * - * @private - * @param {*} value The value to clone. - * @param {boolean} bitmask The bitmask flags. - * 1 - Deep clone - * 2 - Flatten inherited properties - * 4 - Clone symbols - * @param {Function} [customizer] The function to customize cloning. - * @param {string} [key] The key of `value`. - * @param {Object} [object] The parent object of `value`. - * @param {Object} [stack] Tracks traversed objects and their clone counterparts. - * @returns {*} Returns the cloned value. - */ - function baseClone(value, bitmask, customizer, key, object, stack) { - var result, - isDeep = bitmask & CLONE_DEEP_FLAG, - isFlat = bitmask & CLONE_FLAT_FLAG, - isFull = bitmask & CLONE_SYMBOLS_FLAG; - - if (customizer) { - result = object ? customizer(value, key, object, stack) : customizer(value); - } - if (result !== undefined) { - return result; - } - if (!isObject(value)) { - return value; - } - var isArr = isArray(value); - if (isArr) { - result = initCloneArray(value); - if (!isDeep) { - return copyArray(value, result); - } - } else { - var tag = getTag(value), - isFunc = tag == funcTag || tag == genTag; - - if (isBuffer(value)) { - return cloneBuffer(value, isDeep); - } - if (tag == objectTag || tag == argsTag || (isFunc && !object)) { - result = (isFlat || isFunc) ? {} : initCloneObject(value); - if (!isDeep) { - return isFlat - ? copySymbolsIn(value, baseAssignIn(result, value)) - : copySymbols(value, baseAssign(result, value)); - } - } else { - if (!cloneableTags[tag]) { - return object ? value : {}; - } - result = initCloneByTag(value, tag, isDeep); - } - } - // Check for circular references and return its corresponding clone. - stack || (stack = new Stack); - var stacked = stack.get(value); - if (stacked) { - return stacked; - } - stack.set(value, result); - - if (isSet(value)) { - value.forEach(function(subValue) { - result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); - }); - - return result; - } - - if (isMap(value)) { - value.forEach(function(subValue, key) { - result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - - return result; - } - - var keysFunc = isFull - ? (isFlat ? getAllKeysIn : getAllKeys) - : (isFlat ? keysIn : keys); - - var props = isArr ? undefined : keysFunc(value); - arrayEach(props || value, function(subValue, key) { - if (props) { - key = subValue; - subValue = value[key]; - } - // Recursively populate clone (susceptible to call stack limits). - assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); - }); - return result; - } - - /** - * The base implementation of `_.delay` and `_.defer` which accepts `args` - * to provide to `func`. - * - * @private - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {Array} args The arguments to provide to `func`. - * @returns {number|Object} Returns the timer id or timeout object. - */ - function baseDelay(func, wait, args) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return setTimeout(function() { func.apply(undefined, args); }, wait); - } - - /** - * The base implementation of methods like `_.difference` without support - * for excluding multiple arrays or iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Array} values The values to exclude. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of filtered values. - */ - function baseDifference(array, values, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - isCommon = true, - length = array.length, - result = [], - valuesLength = values.length; - - if (!length) { - return result; - } - if (iteratee) { - values = arrayMap(values, baseUnary(iteratee)); - } - if (comparator) { - includes = arrayIncludesWith; - isCommon = false; - } - else if (values.length >= LARGE_ARRAY_SIZE) { - includes = cacheHas; - isCommon = false; - values = new SetCache(values); - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee == null ? value : iteratee(value); - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var valuesIndex = valuesLength; - while (valuesIndex--) { - if (values[valuesIndex] === computed) { - continue outer; - } - } - result.push(value); - } - else if (!includes(values, computed, comparator)) { - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.forEach` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - */ - var baseEach = createBaseEach(baseForOwn); - - /** - * The base implementation of `_.every` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false` - */ - function baseEvery(collection, predicate) { - var result = true; - baseEach(collection, function(value, index, collection) { - result = !!predicate(value, index, collection); - return result; - }); - return result; - } - - /** - * The base implementation of methods like `_.max` and `_.min` which accepts a - * `comparator` to determine the extremum value. - * - * @private - * @param {Array} array The array to iterate over. - * @param {Function} iteratee The iteratee invoked per iteration. - * @param {Function} comparator The comparator used to compare values. - * @returns {*} Returns the extremum value. - */ - function baseExtremum(array, iteratee, comparator) { - var index = -1, - length = array.length; - - while (++index < length) { - var value = array[index], - current = iteratee(value); - - if (current != null && (computed === undefined - ? (current === current && !isSymbol(current)) - : comparator(current, computed) - )) { - var computed = current, - result = value; - } - } - return result; - } - - /** - * The base implementation of `_.filter` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - */ - function baseFilter(collection, predicate) { - var result = []; - baseEach(collection, function(value, index, collection) { - if (predicate(value, index, collection)) { - result.push(value); - } - }); - return result; - } - - /** - * The base implementation of `_.flatten` with support for restricting flattening. - * - * @private - * @param {Array} array The array to flatten. - * @param {number} depth The maximum recursion depth. - * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. - * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. - * @param {Array} [result=[]] The initial result value. - * @returns {Array} Returns the new flattened array. - */ - function baseFlatten(array, depth, predicate, isStrict, result) { - var index = -1, - length = array.length; - - predicate || (predicate = isFlattenable); - result || (result = []); - - while (++index < length) { - var value = array[index]; - if (depth > 0 && predicate(value)) { - if (depth > 1) { - // Recursively flatten arrays (susceptible to call stack limits). - baseFlatten(value, depth - 1, predicate, isStrict, result); - } else { - arrayPush(result, value); - } - } else if (!isStrict) { - result[result.length] = value; - } - } - return result; - } - - /** - * The base implementation of `baseForOwn` which iterates over `object` - * properties returned by `keysFunc` and invokes `iteratee` for each property. - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseFor = createBaseFor(); - - /** - * This function is like `baseFor` except that it iterates over properties - * in the opposite order. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @param {Function} keysFunc The function to get the keys of `object`. - * @returns {Object} Returns `object`. - */ - var baseForRight = createBaseFor(true); - - /** - * The base implementation of `_.forOwn` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwn(object, iteratee) { - return object && baseFor(object, iteratee, keys); - } - - /** - * The base implementation of `_.forOwnRight` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Object} Returns `object`. - */ - function baseForOwnRight(object, iteratee) { - return object && baseForRight(object, iteratee, keys); - } - - /** - * The base implementation of `_.functions` which creates an array of - * `object` function property names filtered from `props`. - * - * @private - * @param {Object} object The object to inspect. - * @param {Array} props The property names to filter. - * @returns {Array} Returns the function names. - */ - function baseFunctions(object, props) { - return arrayFilter(props, function(key) { - return isFunction(object[key]); - }); - } - - /** - * The base implementation of `_.get` without support for default values. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @returns {*} Returns the resolved value. - */ - function baseGet(object, path) { - path = castPath(path, object); - - var index = 0, - length = path.length; - - while (object != null && index < length) { - object = object[toKey(path[index++])]; - } - return (index && index == length) ? object : undefined; - } - - /** - * The base implementation of `getAllKeys` and `getAllKeysIn` which uses - * `keysFunc` and `symbolsFunc` to get the enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Function} keysFunc The function to get the keys of `object`. - * @param {Function} symbolsFunc The function to get the symbols of `object`. - * @returns {Array} Returns the array of property names and symbols. - */ - function baseGetAllKeys(object, keysFunc, symbolsFunc) { - var result = keysFunc(object); - return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); - } - - /** - * The base implementation of `getTag` without fallbacks for buggy environments. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - function baseGetTag(value) { - if (value == null) { - return value === undefined ? undefinedTag : nullTag; - } - return (symToStringTag && symToStringTag in Object(value)) - ? getRawTag(value) - : objectToString(value); - } - - /** - * The base implementation of `_.gt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is greater than `other`, - * else `false`. - */ - function baseGt(value, other) { - return value > other; - } - - /** - * The base implementation of `_.has` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHas(object, key) { - return object != null && hasOwnProperty.call(object, key); - } - - /** - * The base implementation of `_.hasIn` without support for deep paths. - * - * @private - * @param {Object} [object] The object to query. - * @param {Array|string} key The key to check. - * @returns {boolean} Returns `true` if `key` exists, else `false`. - */ - function baseHasIn(object, key) { - return object != null && key in Object(object); - } - - /** - * The base implementation of methods like `_.intersection`, without support - * for iteratee shorthands, that accepts an array of arrays to inspect. - * - * @private - * @param {Array} arrays The arrays to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new array of shared values. - */ - function baseIntersection(arrays, iteratee, comparator) { - var includes = comparator ? arrayIncludesWith : arrayIncludes, - length = arrays[0].length, - othLength = arrays.length, - othIndex = othLength, - caches = Array(othLength), - maxLength = Infinity, - result = []; - - while (othIndex--) { - var array = arrays[othIndex]; - if (othIndex && iteratee) { - array = arrayMap(array, baseUnary(iteratee)); - } - maxLength = nativeMin(array.length, maxLength); - caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) - ? new SetCache(othIndex && array) - : undefined; - } - array = arrays[0]; - - var index = -1, - seen = caches[0]; - - outer: - while (++index < length && result.length < maxLength) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (!(seen - ? cacheHas(seen, computed) - : includes(result, computed, comparator) - )) { - othIndex = othLength; - while (--othIndex) { - var cache = caches[othIndex]; - if (!(cache - ? cacheHas(cache, computed) - : includes(arrays[othIndex], computed, comparator)) - ) { - continue outer; - } - } - if (seen) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.invert` and `_.invertBy` which inverts - * `object` with values transformed by `iteratee` and set by `setter`. - * - * @private - * @param {Object} object The object to iterate over. - * @param {Function} setter The function to set `accumulator` values. - * @param {Function} iteratee The iteratee to transform values. - * @param {Object} accumulator The initial inverted object. - * @returns {Function} Returns `accumulator`. - */ - function baseInverter(object, setter, iteratee, accumulator) { - baseForOwn(object, function(value, key, object) { - setter(accumulator, iteratee(value), key, object); - }); - return accumulator; - } - - /** - * The base implementation of `_.invoke` without support for individual - * method arguments. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path of the method to invoke. - * @param {Array} args The arguments to invoke the method with. - * @returns {*} Returns the result of the invoked method. - */ - function baseInvoke(object, path, args) { - path = castPath(path, object); - object = parent(object, path); - var func = object == null ? object : object[toKey(last(path))]; - return func == null ? undefined : apply(func, object, args); - } - - /** - * The base implementation of `_.isArguments`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - */ - function baseIsArguments(value) { - return isObjectLike(value) && baseGetTag(value) == argsTag; - } - - /** - * The base implementation of `_.isDate` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - */ - function baseIsDate(value) { - return isObjectLike(value) && baseGetTag(value) == dateTag; - } - - /** - * The base implementation of `_.isEqual` which supports partial comparisons - * and tracks traversed objects. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @param {boolean} bitmask The bitmask flags. - * 1 - Unordered comparison - * 2 - Partial comparison - * @param {Function} [customizer] The function to customize comparisons. - * @param {Object} [stack] Tracks traversed `value` and `other` objects. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - */ - function baseIsEqual(value, other, bitmask, customizer, stack) { - if (value === other) { - return true; - } - if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { - return value !== value && other !== other; - } - return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); - } - - /** - * A specialized version of `baseIsEqual` for arrays and objects which performs - * deep comparisons and tracks traversed objects enabling objects with circular - * references to be compared. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} [stack] Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { - var objIsArr = isArray(object), - othIsArr = isArray(other), - objTag = objIsArr ? arrayTag : getTag(object), - othTag = othIsArr ? arrayTag : getTag(other); - - objTag = objTag == argsTag ? objectTag : objTag; - othTag = othTag == argsTag ? objectTag : othTag; - - var objIsObj = objTag == objectTag, - othIsObj = othTag == objectTag, - isSameTag = objTag == othTag; - - if (isSameTag && isBuffer(object)) { - if (!isBuffer(other)) { - return false; - } - objIsArr = true; - objIsObj = false; - } - if (isSameTag && !objIsObj) { - stack || (stack = new Stack); - return (objIsArr || isTypedArray(object)) - ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) - : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); - } - if (!(bitmask & COMPARE_PARTIAL_FLAG)) { - var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), - othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - - if (objIsWrapped || othIsWrapped) { - var objUnwrapped = objIsWrapped ? object.value() : object, - othUnwrapped = othIsWrapped ? other.value() : other; - - stack || (stack = new Stack); - return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); - } - } - if (!isSameTag) { - return false; - } - stack || (stack = new Stack); - return equalObjects(object, other, bitmask, customizer, equalFunc, stack); - } - - /** - * The base implementation of `_.isMap` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - */ - function baseIsMap(value) { - return isObjectLike(value) && getTag(value) == mapTag; - } - - /** - * The base implementation of `_.isMatch` without support for iteratee shorthands. - * - * @private - * @param {Object} object The object to inspect. - * @param {Object} source The object of property values to match. - * @param {Array} matchData The property names, values, and compare flags to match. - * @param {Function} [customizer] The function to customize comparisons. - * @returns {boolean} Returns `true` if `object` is a match, else `false`. - */ - function baseIsMatch(object, source, matchData, customizer) { - var index = matchData.length, - length = index, - noCustomizer = !customizer; - - if (object == null) { - return !length; - } - object = Object(object); - while (index--) { - var data = matchData[index]; - if ((noCustomizer && data[2]) - ? data[1] !== object[data[0]] - : !(data[0] in object) - ) { - return false; - } - } - while (++index < length) { - data = matchData[index]; - var key = data[0], - objValue = object[key], - srcValue = data[1]; - - if (noCustomizer && data[2]) { - if (objValue === undefined && !(key in object)) { - return false; - } - } else { - var stack = new Stack; - if (customizer) { - var result = customizer(objValue, srcValue, key, object, source, stack); - } - if (!(result === undefined - ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) - : result - )) { - return false; - } - } - } - return true; - } - - /** - * The base implementation of `_.isNative` without bad shim checks. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a native function, - * else `false`. - */ - function baseIsNative(value) { - if (!isObject(value) || isMasked(value)) { - return false; - } - var pattern = isFunction(value) ? reIsNative : reIsHostCtor; - return pattern.test(toSource(value)); - } - - /** - * The base implementation of `_.isRegExp` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - */ - function baseIsRegExp(value) { - return isObjectLike(value) && baseGetTag(value) == regexpTag; - } - - /** - * The base implementation of `_.isSet` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - */ - function baseIsSet(value) { - return isObjectLike(value) && getTag(value) == setTag; - } - - /** - * The base implementation of `_.isTypedArray` without Node.js optimizations. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - */ - function baseIsTypedArray(value) { - return isObjectLike(value) && - isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; - } - - /** - * The base implementation of `_.iteratee`. - * - * @private - * @param {*} [value=_.identity] The value to convert to an iteratee. - * @returns {Function} Returns the iteratee. - */ - function baseIteratee(value) { - // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. - // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. - if (typeof value == 'function') { - return value; - } - if (value == null) { - return identity; - } - if (typeof value == 'object') { - return isArray(value) - ? baseMatchesProperty(value[0], value[1]) - : baseMatches(value); - } - return property(value); - } - - /** - * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeys(object) { - if (!isPrototype(object)) { - return nativeKeys(object); - } - var result = []; - for (var key in Object(object)) { - if (hasOwnProperty.call(object, key) && key != 'constructor') { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function baseKeysIn(object) { - if (!isObject(object)) { - return nativeKeysIn(object); - } - var isProto = isPrototype(object), - result = []; - - for (var key in object) { - if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { - result.push(key); - } - } - return result; - } - - /** - * The base implementation of `_.lt` which doesn't coerce arguments. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if `value` is less than `other`, - * else `false`. - */ - function baseLt(value, other) { - return value < other; - } - - /** - * The base implementation of `_.map` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} iteratee The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - */ - function baseMap(collection, iteratee) { - var index = -1, - result = isArrayLike(collection) ? Array(collection.length) : []; - - baseEach(collection, function(value, key, collection) { - result[++index] = iteratee(value, key, collection); - }); - return result; - } - - /** - * The base implementation of `_.matches` which doesn't clone `source`. - * - * @private - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatches(source) { - var matchData = getMatchData(source); - if (matchData.length == 1 && matchData[0][2]) { - return matchesStrictComparable(matchData[0][0], matchData[0][1]); - } - return function(object) { - return object === source || baseIsMatch(object, source, matchData); - }; - } - - /** - * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. - * - * @private - * @param {string} path The path of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function baseMatchesProperty(path, srcValue) { - if (isKey(path) && isStrictComparable(srcValue)) { - return matchesStrictComparable(toKey(path), srcValue); - } - return function(object) { - var objValue = get(object, path); - return (objValue === undefined && objValue === srcValue) - ? hasIn(object, path) - : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); - }; - } - - /** - * The base implementation of `_.merge` without support for multiple sources. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {number} srcIndex The index of `source`. - * @param {Function} [customizer] The function to customize merged values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMerge(object, source, srcIndex, customizer, stack) { - if (object === source) { - return; - } - baseFor(source, function(srcValue, key) { - if (isObject(srcValue)) { - stack || (stack = new Stack); - baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); - } - else { - var newValue = customizer - ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) - : undefined; - - if (newValue === undefined) { - newValue = srcValue; - } - assignMergeValue(object, key, newValue); - } - }, keysIn); - } - - /** - * A specialized version of `baseMerge` for arrays and objects which performs - * deep merges and tracks traversed objects enabling objects with circular - * references to be merged. - * - * @private - * @param {Object} object The destination object. - * @param {Object} source The source object. - * @param {string} key The key of the value to merge. - * @param {number} srcIndex The index of `source`. - * @param {Function} mergeFunc The function to merge values. - * @param {Function} [customizer] The function to customize assigned values. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - */ - function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { - var objValue = safeGet(object, key), - srcValue = safeGet(source, key), - stacked = stack.get(srcValue); - - if (stacked) { - assignMergeValue(object, key, stacked); - return; - } - var newValue = customizer - ? customizer(objValue, srcValue, (key + ''), object, source, stack) - : undefined; - - var isCommon = newValue === undefined; - - if (isCommon) { - var isArr = isArray(srcValue), - isBuff = !isArr && isBuffer(srcValue), - isTyped = !isArr && !isBuff && isTypedArray(srcValue); - - newValue = srcValue; - if (isArr || isBuff || isTyped) { - if (isArray(objValue)) { - newValue = objValue; - } - else if (isArrayLikeObject(objValue)) { - newValue = copyArray(objValue); - } - else if (isBuff) { - isCommon = false; - newValue = cloneBuffer(srcValue, true); - } - else if (isTyped) { - isCommon = false; - newValue = cloneTypedArray(srcValue, true); - } - else { - newValue = []; - } - } - else if (isPlainObject(srcValue) || isArguments(srcValue)) { - newValue = objValue; - if (isArguments(objValue)) { - newValue = toPlainObject(objValue); - } - else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { - newValue = initCloneObject(srcValue); - } - } - else { - isCommon = false; - } - } - if (isCommon) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, newValue); - mergeFunc(newValue, srcValue, srcIndex, customizer, stack); - stack['delete'](srcValue); - } - assignMergeValue(object, key, newValue); - } - - /** - * The base implementation of `_.orderBy` without param guards. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. - * @param {string[]} orders The sort orders of `iteratees`. - * @returns {Array} Returns the new sorted array. - */ - function baseOrderBy(collection, iteratees, orders) { - var index = -1; - iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); - - var result = baseMap(collection, function(value, key, collection) { - var criteria = arrayMap(iteratees, function(iteratee) { - return iteratee(value); - }); - return { 'criteria': criteria, 'index': ++index, 'value': value }; - }); - - return baseSortBy(result, function(object, other) { - return compareMultiple(object, other, orders); - }); - } - - /** - * The base implementation of `_.pick` without support for individual - * property identifiers. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @returns {Object} Returns the new object. - */ - function basePick(object, paths) { - return basePickBy(object, paths, function(value, path) { - return hasIn(object, path); - }); - } - - /** - * The base implementation of `_.pickBy` without support for iteratee shorthands. - * - * @private - * @param {Object} object The source object. - * @param {string[]} paths The property paths to pick. - * @param {Function} predicate The function invoked per property. - * @returns {Object} Returns the new object. - */ - function basePickBy(object, paths, predicate) { - var index = -1, - length = paths.length, - result = {}; - - while (++index < length) { - var path = paths[index], - value = baseGet(object, path); - - if (predicate(value, path)) { - baseSet(result, castPath(path, object), value); - } - } - return result; - } - - /** - * A specialized version of `baseProperty` which supports deep paths. - * - * @private - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - */ - function basePropertyDeep(path) { - return function(object) { - return baseGet(object, path); - }; - } - - /** - * The base implementation of `_.random` without support for returning - * floating-point numbers. - * - * @private - * @param {number} lower The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the random number. - */ - function baseRandom(lower, upper) { - return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); - } - - /** - * The base implementation of `_.range` and `_.rangeRight` which doesn't - * coerce arguments. - * - * @private - * @param {number} start The start of the range. - * @param {number} end The end of the range. - * @param {number} step The value to increment or decrement by. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Array} Returns the range of numbers. - */ - function baseRange(start, end, step, fromRight) { - var index = -1, - length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), - result = Array(length); - - while (length--) { - result[fromRight ? length : ++index] = start; - start += step; - } - return result; - } - - /** - * The base implementation of `_.rest` which doesn't validate or coerce arguments. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - */ - function baseRest(func, start) { - return setToString(overRest(func, start, identity), func + ''); - } - - /** - * The base implementation of `_.set`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The path of the property to set. - * @param {*} value The value to set. - * @param {Function} [customizer] The function to customize path creation. - * @returns {Object} Returns `object`. - */ - function baseSet(object, path, value, customizer) { - if (!isObject(object)) { - return object; - } - path = castPath(path, object); - - var index = -1, - length = path.length, - lastIndex = length - 1, - nested = object; - - while (nested != null && ++index < length) { - var key = toKey(path[index]), - newValue = value; - - if (index != lastIndex) { - var objValue = nested[key]; - newValue = customizer ? customizer(objValue, key, nested) : undefined; - if (newValue === undefined) { - newValue = isObject(objValue) - ? objValue - : (isIndex(path[index + 1]) ? [] : {}); - } - } - assignValue(nested, key, newValue); - nested = nested[key]; - } - return object; - } - - /** - * The base implementation of `setData` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var baseSetData = !metaMap ? identity : function(func, data) { - metaMap.set(func, data); - return func; + /** Used as a safe reference for `undefined` in pre-ES5 environments. */ + var undefined; + + /** Used as the semantic version number. */ + var VERSION = '4.17.5'; + + /** Used as the size to enable large array optimizations. */ + var LARGE_ARRAY_SIZE = 200; + + /** Error message constants. */ + var FUNC_ERROR_TEXT = 'Expected a function'; + + /** Used to stand-in for `undefined` hash values. */ + var HASH_UNDEFINED = '__lodash_hash_undefined__'; + + /** Used as the maximum memoize cache size. */ + var MAX_MEMOIZE_SIZE = 500; + + /** Used as the internal argument placeholder. */ + var PLACEHOLDER = '__lodash_placeholder__'; + + /** Used to compose bitmasks for cloning. */ + var CLONE_DEEP_FLAG = 1, + CLONE_FLAT_FLAG = 2, + CLONE_SYMBOLS_FLAG = 4; + + /** Used to compose bitmasks for value comparisons. */ + var COMPARE_PARTIAL_FLAG = 1, + COMPARE_UNORDERED_FLAG = 2; + + /** Used to compose bitmasks for function metadata. */ + var WRAP_BIND_FLAG = 1, + WRAP_BIND_KEY_FLAG = 2, + WRAP_CURRY_BOUND_FLAG = 4, + WRAP_CURRY_FLAG = 8, + WRAP_CURRY_RIGHT_FLAG = 16, + WRAP_PARTIAL_FLAG = 32, + WRAP_PARTIAL_RIGHT_FLAG = 64, + WRAP_ARY_FLAG = 128, + WRAP_REARG_FLAG = 256, + WRAP_FLIP_FLAG = 512; + + /** Used to detect hot functions by number of calls within a span of milliseconds. */ + var HOT_COUNT = 800, + HOT_SPAN = 16; + + /** Used to indicate the type of lazy iteratees. */ + var LAZY_FILTER_FLAG = 1, + LAZY_MAP_FLAG = 2, + LAZY_WHILE_FLAG = 3; + + /** Used as references for various `Number` constants. */ + var INFINITY = 1 / 0, + MAX_SAFE_INTEGER = 9007199254740991, + MAX_INTEGER = 1.7976931348623157e+308, + NAN = 0 / 0; + + /** Used as references for the maximum length and index of an array. */ + var MAX_ARRAY_LENGTH = 4294967295; + + /** Used to associate wrap methods with their bit flags. */ + var wrapFlags = [ + ['ary', WRAP_ARY_FLAG], + ['bind', WRAP_BIND_FLAG], + ['bindKey', WRAP_BIND_KEY_FLAG], + ['curry', WRAP_CURRY_FLAG], + ['curryRight', WRAP_CURRY_RIGHT_FLAG], + ['flip', WRAP_FLIP_FLAG], + ['partial', WRAP_PARTIAL_FLAG], + ['partialRight', WRAP_PARTIAL_RIGHT_FLAG], + ['rearg', WRAP_REARG_FLAG] + ]; + + /** `Object#toString` result references. */ + var argsTag = '[object Arguments]', + arrayTag = '[object Array]', + asyncTag = '[object AsyncFunction]', + boolTag = '[object Boolean]', + dateTag = '[object Date]', + errorTag = '[object Error]', + funcTag = '[object Function]', + genTag = '[object GeneratorFunction]', + mapTag = '[object Map]', + numberTag = '[object Number]', + nullTag = '[object Null]', + objectTag = '[object Object]', + promiseTag = '[object Promise]', + proxyTag = '[object Proxy]', + regexpTag = '[object RegExp]', + setTag = '[object Set]', + stringTag = '[object String]', + symbolTag = '[object Symbol]', + undefinedTag = '[object Undefined]', + weakMapTag = '[object WeakMap]'; + + var arrayBufferTag = '[object ArrayBuffer]', + dataViewTag = '[object DataView]', + float32Tag = '[object Float32Array]', + float64Tag = '[object Float64Array]', + int8Tag = '[object Int8Array]', + int16Tag = '[object Int16Array]', + int32Tag = '[object Int32Array]', + uint8Tag = '[object Uint8Array]', + uint8ClampedTag = '[object Uint8ClampedArray]', + uint16Tag = '[object Uint16Array]', + uint32Tag = '[object Uint32Array]'; + + /** Used to match HTML entities and HTML characters. */ + var reUnescapedHtml = /[&<>"']/g, + reHasUnescapedHtml = RegExp(reUnescapedHtml.source); + + /** Used to match property names within property paths. */ + var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/, + reIsPlainProp = /^\w*$/, + rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g; + + /** + * Used to match `RegExp` + * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). + */ + var reRegExpChar = /[\\^$.*+?()[\]{}|]/g; + + /** Used to match leading and trailing whitespace. */ + var reTrim = /^\s+|\s+$/g; + + /** Used to match wrap detail comments. */ + var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/, + reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/, + reSplitDetails = /,? & /; + + /** Used to match backslashes in property paths. */ + var reEscapeChar = /\\(\\)?/g; + + /** Used to match `RegExp` flags from their coerced string values. */ + var reFlags = /\w*$/; + + /** Used to detect bad signed hexadecimal string values. */ + var reIsBadHex = /^[-+]0x[0-9a-f]+$/i; + + /** Used to detect binary string values. */ + var reIsBinary = /^0b[01]+$/i; + + /** Used to detect host constructors (Safari). */ + var reIsHostCtor = /^\[object .+?Constructor\]$/; + + /** Used to detect octal string values. */ + var reIsOctal = /^0o[0-7]+$/i; + + /** Used to detect unsigned integer values. */ + var reIsUint = /^(?:0|[1-9]\d*)$/; + + /** Used to compose unicode character classes. */ + var rsAstralRange = '\\ud800-\\udfff', + rsComboMarksRange = '\\u0300-\\u036f', + reComboHalfMarksRange = '\\ufe20-\\ufe2f', + rsComboSymbolsRange = '\\u20d0-\\u20ff', + rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange, + rsVarRange = '\\ufe0e\\ufe0f'; + + /** Used to compose unicode capture groups. */ + var rsAstral = '[' + rsAstralRange + ']', + rsCombo = '[' + rsComboRange + ']', + rsFitz = '\\ud83c[\\udffb-\\udfff]', + rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')', + rsNonAstral = '[^' + rsAstralRange + ']', + rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}', + rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]', + rsZWJ = '\\u200d'; + + /** Used to compose unicode regexes. */ + var reOptMod = rsModifier + '?', + rsOptVar = '[' + rsVarRange + ']?', + rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*', + rsSeq = rsOptVar + reOptMod + rsOptJoin, + rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')'; + + /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */ + var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g'); + + /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */ + var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']'); + + /** Used to identify `toStringTag` values of typed arrays. */ + var typedArrayTags = {}; + typedArrayTags[float32Tag] = typedArrayTags[float64Tag] = + typedArrayTags[int8Tag] = typedArrayTags[int16Tag] = + typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] = + typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] = + typedArrayTags[uint32Tag] = true; + typedArrayTags[argsTag] = typedArrayTags[arrayTag] = + typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] = + typedArrayTags[dataViewTag] = typedArrayTags[dateTag] = + typedArrayTags[errorTag] = typedArrayTags[funcTag] = + typedArrayTags[mapTag] = typedArrayTags[numberTag] = + typedArrayTags[objectTag] = typedArrayTags[regexpTag] = + typedArrayTags[setTag] = typedArrayTags[stringTag] = + typedArrayTags[weakMapTag] = false; + + /** Used to identify `toStringTag` values supported by `_.clone`. */ + var cloneableTags = {}; + cloneableTags[argsTag] = cloneableTags[arrayTag] = + cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] = + cloneableTags[boolTag] = cloneableTags[dateTag] = + cloneableTags[float32Tag] = cloneableTags[float64Tag] = + cloneableTags[int8Tag] = cloneableTags[int16Tag] = + cloneableTags[int32Tag] = cloneableTags[mapTag] = + cloneableTags[numberTag] = cloneableTags[objectTag] = + cloneableTags[regexpTag] = cloneableTags[setTag] = + cloneableTags[stringTag] = cloneableTags[symbolTag] = + cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] = + cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true; + cloneableTags[errorTag] = cloneableTags[funcTag] = + cloneableTags[weakMapTag] = false; + + /** Used to map characters to HTML entities. */ + var htmlEscapes = { + '&': '&', + '<': '<', + '>': '>', + '"': '"', + "'": ''' + }; + + /** Built-in method references without a dependency on `root`. */ + var freeParseFloat = parseFloat, + freeParseInt = parseInt; + + /** Detect free variable `global` from Node.js. */ + var freeGlobal = typeof global == 'object' && global && global.Object === Object && global; + + /** Detect free variable `self`. */ + var freeSelf = typeof self == 'object' && self && self.Object === Object && self; + + /** Used as a reference to the global object. */ + var root = freeGlobal || freeSelf || Function('return this')(); + + /** Detect free variable `exports`. */ + var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports; + + /** Detect free variable `module`. */ + var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module; + + /** Detect the popular CommonJS extension `module.exports`. */ + var moduleExports = freeModule && freeModule.exports === freeExports; + + /** Detect free variable `process` from Node.js. */ + var freeProcess = moduleExports && freeGlobal.process; + + /** Used to access faster Node.js helpers. */ + var nodeUtil = (function() { + try { + return freeProcess && freeProcess.binding && freeProcess.binding('util'); + } catch (e) {} + }()); + + /* Node.js helper references. */ + var nodeIsDate = nodeUtil && nodeUtil.isDate, + nodeIsMap = nodeUtil && nodeUtil.isMap, + nodeIsRegExp = nodeUtil && nodeUtil.isRegExp, + nodeIsSet = nodeUtil && nodeUtil.isSet, + nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray; + + /*--------------------------------------------------------------------------*/ + + /** + * A faster alternative to `Function#apply`, this function invokes `func` + * with the `this` binding of `thisArg` and the arguments of `args`. + * + * @private + * @param {Function} func The function to invoke. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} args The arguments to invoke `func` with. + * @returns {*} Returns the result of `func`. + */ + function apply(func, thisArg, args) { + switch (args.length) { + case 0: return func.call(thisArg); + case 1: return func.call(thisArg, args[0]); + case 2: return func.call(thisArg, args[0], args[1]); + case 3: return func.call(thisArg, args[0], args[1], args[2]); + } + return func.apply(thisArg, args); + } + + /** + * A specialized version of `baseAggregator` for arrays. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function arrayAggregator(array, setter, iteratee, accumulator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + var value = array[index]; + setter(accumulator, value, iteratee(value), array); + } + return accumulator; + } + + /** + * A specialized version of `_.forEach` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns `array`. + */ + function arrayEach(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (iteratee(array[index], index, array) === false) { + break; + } + } + return array; + } + + /** + * A specialized version of `_.every` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + */ + function arrayEvery(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (!predicate(array[index], index, array)) { + return false; + } + } + return true; + } + + /** + * A specialized version of `_.filter` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function arrayFilter(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (predicate(value, index, array)) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * A specialized version of `_.includes` for arrays without support for + * specifying an index to search from. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludes(array, value) { + var length = array == null ? 0 : array.length; + return !!length && baseIndexOf(array, value, 0) > -1; + } + + /** + * This function is like `arrayIncludes` except that it accepts a comparator. + * + * @private + * @param {Array} [array] The array to inspect. + * @param {*} target The value to search for. + * @param {Function} comparator The comparator invoked per element. + * @returns {boolean} Returns `true` if `target` is found, else `false`. + */ + function arrayIncludesWith(array, value, comparator) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (comparator(value, array[index])) { + return true; + } + } + return false; + } + + /** + * A specialized version of `_.map` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function arrayMap(array, iteratee) { + var index = -1, + length = array == null ? 0 : array.length, + result = Array(length); + + while (++index < length) { + result[index] = iteratee(array[index], index, array); + } + return result; + } + + /** + * Appends the elements of `values` to `array`. + * + * @private + * @param {Array} array The array to modify. + * @param {Array} values The values to append. + * @returns {Array} Returns `array`. + */ + function arrayPush(array, values) { + var index = -1, + length = values.length, + offset = array.length; + + while (++index < length) { + array[offset + index] = values[index]; + } + return array; + } + + /** + * A specialized version of `_.reduce` for arrays without support for + * iteratee shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @param {boolean} [initAccum] Specify using the first element of `array` as + * the initial value. + * @returns {*} Returns the accumulated value. + */ + function arrayReduce(array, iteratee, accumulator, initAccum) { + var index = -1, + length = array == null ? 0 : array.length; + + if (initAccum && length) { + accumulator = array[++index]; + } + while (++index < length) { + accumulator = iteratee(accumulator, array[index], index, array); + } + return accumulator; + } + + /** + * A specialized version of `_.some` for arrays without support for iteratee + * shorthands. + * + * @private + * @param {Array} [array] The array to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function arraySome(array, predicate) { + var index = -1, + length = array == null ? 0 : array.length; + + while (++index < length) { + if (predicate(array[index], index, array)) { + return true; + } + } + return false; + } + + /** + * Gets the size of an ASCII `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + var asciiSize = baseProperty('length'); + + /** + * Converts an ASCII `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function asciiToArray(string) { + return string.split(''); + } + + /** + * The base implementation of methods like `_.findKey` and `_.findLastKey`, + * without support for iteratee shorthands, which iterates over `collection` + * using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the found element or its key, else `undefined`. + */ + function baseFindKey(collection, predicate, eachFunc) { + var result; + eachFunc(collection, function(value, key, collection) { + if (predicate(value, key, collection)) { + result = key; + return false; + } + }); + return result; + } + + /** + * The base implementation of `_.findIndex` and `_.findLastIndex` without + * support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} predicate The function invoked per iteration. + * @param {number} fromIndex The index to search from. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseFindIndex(array, predicate, fromIndex, fromRight) { + var length = array.length, + index = fromIndex + (fromRight ? 1 : -1); + + while ((fromRight ? index-- : ++index < length)) { + if (predicate(array[index], index, array)) { + return index; + } + } + return -1; + } + + /** + * The base implementation of `_.indexOf` without `fromIndex` bounds checks. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function baseIndexOf(array, value, fromIndex) { + return value === value + ? strictIndexOf(array, value, fromIndex) + : baseFindIndex(array, baseIsNaN, fromIndex); + } + + /** + * The base implementation of `_.isNaN` without support for number objects. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + */ + function baseIsNaN(value) { + return value !== value; + } + + /** + * The base implementation of `_.property` without support for deep paths. + * + * @private + * @param {string} key The key of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function baseProperty(key) { + return function(object) { + return object == null ? undefined : object[key]; }; - - /** - * The base implementation of `setToString` without support for hot loop shorting. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var baseSetToString = !defineProperty ? identity : function(func, string) { - return defineProperty(func, 'toString', { - 'configurable': true, - 'enumerable': false, - 'value': constant(string), - 'writable': true - }); + } + + /** + * The base implementation of `_.propertyOf` without support for deep paths. + * + * @private + * @param {Object} object The object to query. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyOf(object) { + return function(key) { + return object == null ? undefined : object[key]; }; - - /** - * The base implementation of `_.slice` without an iteratee call guard. - * - * @private - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function baseSlice(array, start, end) { - var index = -1, - length = array.length; - - if (start < 0) { - start = -start > length ? 0 : (length + start); - } - end = end > length ? length : end; - if (end < 0) { - end += length; - } - length = start > end ? 0 : ((end - start) >>> 0); - start >>>= 0; - - var result = Array(length); - while (++index < length) { - result[index] = array[index + start]; - } - return result; - } - - /** - * The base implementation of `_.some` without support for iteratee shorthands. - * - * @private - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} predicate The function invoked per iteration. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - */ - function baseSome(collection, predicate) { - var result; - - baseEach(collection, function(value, index, collection) { - result = predicate(value, index, collection); - return !result; - }); - return !!result; - } - - /** - * The base implementation of `_.toString` which doesn't convert nullish - * values to empty strings. - * - * @private - * @param {*} value The value to process. - * @returns {string} Returns the string. - */ - function baseToString(value) { - // Exit early for strings to avoid a performance hit in some environments. - if (typeof value == 'string') { - return value; - } - if (isArray(value)) { - // Recursively convert values (susceptible to call stack limits). - return arrayMap(value, baseToString) + ''; - } - if (isSymbol(value)) { - return symbolToString ? symbolToString.call(value) : ''; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * The base implementation of `_.uniqBy` without support for iteratee shorthands. - * - * @private - * @param {Array} array The array to inspect. - * @param {Function} [iteratee] The iteratee invoked per element. - * @param {Function} [comparator] The comparator invoked per element. - * @returns {Array} Returns the new duplicate free array. - */ - function baseUniq(array, iteratee, comparator) { - var index = -1, - includes = arrayIncludes, - length = array.length, - isCommon = true, - result = [], - seen = result; - - if (comparator) { - isCommon = false; - includes = arrayIncludesWith; - } - else if (length >= LARGE_ARRAY_SIZE) { - var set = iteratee ? null : createSet(array); - if (set) { - return setToArray(set); - } - isCommon = false; - includes = cacheHas; - seen = new SetCache; - } - else { - seen = iteratee ? [] : result; - } - outer: - while (++index < length) { - var value = array[index], - computed = iteratee ? iteratee(value) : value; - - value = (comparator || value !== 0) ? value : 0; - if (isCommon && computed === computed) { - var seenIndex = seen.length; - while (seenIndex--) { - if (seen[seenIndex] === computed) { - continue outer; - } - } - if (iteratee) { - seen.push(computed); - } - result.push(value); - } - else if (!includes(seen, computed, comparator)) { - if (seen !== result) { - seen.push(computed); - } - result.push(value); - } - } - return result; - } - - /** - * The base implementation of `_.unset`. - * - * @private - * @param {Object} object The object to modify. - * @param {Array|string} path The property path to unset. - * @returns {boolean} Returns `true` if the property is deleted, else `false`. - */ - function baseUnset(object, path) { - path = castPath(path, object); - object = parent(object, path); - return object == null || delete object[toKey(last(path))]; - } - - /** - * The base implementation of `wrapperValue` which returns the result of - * performing a sequence of actions on the unwrapped `value`, where each - * successive action is supplied the return value of the previous. - * - * @private - * @param {*} value The unwrapped value. - * @param {Array} actions Actions to perform to resolve the unwrapped value. - * @returns {*} Returns the resolved value. - */ - function baseWrapperValue(value, actions) { - var result = value; - if (result instanceof LazyWrapper) { - result = result.value(); - } - return arrayReduce(actions, function(result, action) { - return action.func.apply(action.thisArg, arrayPush([result], action.args)); - }, result); - } - - /** - * This base implementation of `_.zipObject` which assigns values using `assignFunc`. - * - * @private - * @param {Array} props The property identifiers. - * @param {Array} values The property values. - * @param {Function} assignFunc The function to assign values. - * @returns {Object} Returns the new object. - */ - function baseZipObject(props, values, assignFunc) { - var index = -1, - length = props.length, - valsLength = values.length, - result = {}; - - while (++index < length) { - var value = index < valsLength ? values[index] : undefined; - assignFunc(result, props[index], value); - } - return result; - } - - /** - * Casts `value` to an empty array if it's not an array like object. - * - * @private - * @param {*} value The value to inspect. - * @returns {Array|Object} Returns the cast array-like object. - */ - function castArrayLikeObject(value) { - return isArrayLikeObject(value) ? value : []; - } - - /** - * Casts `value` to a path array if it's not one. - * - * @private - * @param {*} value The value to inspect. - * @param {Object} [object] The object to query keys on. - * @returns {Array} Returns the cast property path array. - */ - function castPath(value, object) { - if (isArray(value)) { - return value; - } - return isKey(value, object) ? [value] : stringToPath(toString(value)); - } - - /** - * Casts `array` to a slice if it's needed. - * - * @private - * @param {Array} array The array to inspect. - * @param {number} start The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the cast slice. - */ - function castSlice(array, start, end) { - var length = array.length; - end = end === undefined ? length : end; - return (!start && end >= length) ? array : baseSlice(array, start, end); - } - - /** - * Creates a clone of `buffer`. - * - * @private - * @param {Buffer} buffer The buffer to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Buffer} Returns the cloned buffer. - */ - function cloneBuffer(buffer, isDeep) { - if (isDeep) { - return buffer.slice(); - } - var length = buffer.length, - result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); - - buffer.copy(result); - return result; - } - - /** - * Creates a clone of `arrayBuffer`. - * - * @private - * @param {ArrayBuffer} arrayBuffer The array buffer to clone. - * @returns {ArrayBuffer} Returns the cloned array buffer. - */ - function cloneArrayBuffer(arrayBuffer) { - var result = new arrayBuffer.constructor(arrayBuffer.byteLength); - new Uint8Array(result).set(new Uint8Array(arrayBuffer)); - return result; - } - - /** - * Creates a clone of `dataView`. - * - * @private - * @param {Object} dataView The data view to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned data view. - */ - function cloneDataView(dataView, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; - return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); - } - - /** - * Creates a clone of `regexp`. - * - * @private - * @param {Object} regexp The regexp to clone. - * @returns {Object} Returns the cloned regexp. - */ - function cloneRegExp(regexp) { - var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); - result.lastIndex = regexp.lastIndex; - return result; - } - - /** - * Creates a clone of the `symbol` object. - * - * @private - * @param {Object} symbol The symbol object to clone. - * @returns {Object} Returns the cloned symbol object. - */ - function cloneSymbol(symbol) { - return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; - } - - /** - * Creates a clone of `typedArray`. - * - * @private - * @param {Object} typedArray The typed array to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the cloned typed array. - */ - function cloneTypedArray(typedArray, isDeep) { - var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; - return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); - } - - /** - * Compares values to sort them in ascending order. - * - * @private - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {number} Returns the sort order indicator for `value`. - */ - function compareAscending(value, other) { - if (value !== other) { - var valIsDefined = value !== undefined, - valIsNull = value === null, - valIsReflexive = value === value, - valIsSymbol = isSymbol(value); - - var othIsDefined = other !== undefined, - othIsNull = other === null, - othIsReflexive = other === other, - othIsSymbol = isSymbol(other); - - if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || - (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || - (valIsNull && othIsDefined && othIsReflexive) || - (!valIsDefined && othIsReflexive) || - !valIsReflexive) { - return 1; - } - if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || - (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || - (othIsNull && valIsDefined && valIsReflexive) || - (!othIsDefined && valIsReflexive) || - !othIsReflexive) { - return -1; - } - } - return 0; - } - - /** - * Used by `_.orderBy` to compare multiple properties of a value to another - * and stable sort them. - * - * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, - * specify an order of "desc" for descending or "asc" for ascending sort order - * of corresponding values. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {boolean[]|string[]} orders The order to sort by for each property. - * @returns {number} Returns the sort order indicator for `object`. - */ - function compareMultiple(object, other, orders) { - var index = -1, - objCriteria = object.criteria, - othCriteria = other.criteria, - length = objCriteria.length, - ordersLength = orders.length; - - while (++index < length) { - var result = compareAscending(objCriteria[index], othCriteria[index]); - if (result) { - if (index >= ordersLength) { - return result; - } - var order = orders[index]; - return result * (order == 'desc' ? -1 : 1); - } - } - // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications - // that causes it, under certain circumstances, to provide the same value for - // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 - // for more details. - // - // This also ensures a stable sort in V8 and other engines. - // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. - return object.index - other.index; - } - - /** - * Creates an array that is the composition of partially applied arguments, - * placeholders, and provided arguments into a single array of arguments. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to prepend to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgs(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersLength = holders.length, - leftIndex = -1, - leftLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(leftLength + rangeLength), - isUncurried = !isCurried; - - while (++leftIndex < leftLength) { - result[leftIndex] = partials[leftIndex]; - } - while (++argsIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[holders[argsIndex]] = args[argsIndex]; - } - } - while (rangeLength--) { - result[leftIndex++] = args[argsIndex++]; - } - return result; - } - - /** - * This function is like `composeArgs` except that the arguments composition - * is tailored for `_.partialRight`. - * - * @private - * @param {Array} args The provided arguments. - * @param {Array} partials The arguments to append to those provided. - * @param {Array} holders The `partials` placeholder indexes. - * @params {boolean} [isCurried] Specify composing for a curried function. - * @returns {Array} Returns the new array of composed arguments. - */ - function composeArgsRight(args, partials, holders, isCurried) { - var argsIndex = -1, - argsLength = args.length, - holdersIndex = -1, - holdersLength = holders.length, - rightIndex = -1, - rightLength = partials.length, - rangeLength = nativeMax(argsLength - holdersLength, 0), - result = Array(rangeLength + rightLength), - isUncurried = !isCurried; - - while (++argsIndex < rangeLength) { - result[argsIndex] = args[argsIndex]; - } - var offset = argsIndex; - while (++rightIndex < rightLength) { - result[offset + rightIndex] = partials[rightIndex]; - } - while (++holdersIndex < holdersLength) { - if (isUncurried || argsIndex < argsLength) { - result[offset + holders[holdersIndex]] = args[argsIndex++]; - } - } - return result; - } - - /** - * Copies the values of `source` to `array`. - * - * @private - * @param {Array} source The array to copy values from. - * @param {Array} [array=[]] The array to copy values to. - * @returns {Array} Returns `array`. - */ - function copyArray(source, array) { - var index = -1, - length = source.length; - - array || (array = Array(length)); - while (++index < length) { - array[index] = source[index]; - } - return array; - } - - /** - * Copies properties of `source` to `object`. - * - * @private - * @param {Object} source The object to copy properties from. - * @param {Array} props The property identifiers to copy. - * @param {Object} [object={}] The object to copy properties to. - * @param {Function} [customizer] The function to customize copied values. - * @returns {Object} Returns `object`. - */ - function copyObject(source, props, object, customizer) { - var isNew = !object; - object || (object = {}); - - var index = -1, - length = props.length; - - while (++index < length) { - var key = props[index]; - - var newValue = customizer - ? customizer(object[key], source[key], key, object, source) - : undefined; - - if (newValue === undefined) { - newValue = source[key]; - } - if (isNew) { - baseAssignValue(object, key, newValue); - } else { - assignValue(object, key, newValue); - } - } - return object; - } - - /** - * Copies own symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbols(source, object) { - return copyObject(source, getSymbols(source), object); - } - - /** - * Copies own and inherited symbols of `source` to `object`. - * - * @private - * @param {Object} source The object to copy symbols from. - * @param {Object} [object={}] The object to copy symbols to. - * @returns {Object} Returns `object`. - */ - function copySymbolsIn(source, object) { - return copyObject(source, getSymbolsIn(source), object); - } - - /** - * Creates a function like `_.groupBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} [initializer] The accumulator object initializer. - * @returns {Function} Returns the new aggregator function. - */ - function createAggregator(setter, initializer) { - return function(collection, iteratee) { - var func = isArray(collection) ? arrayAggregator : baseAggregator, - accumulator = initializer ? initializer() : {}; - - return func(collection, setter, baseIteratee(iteratee, 2), accumulator); - }; - } - - /** - * Creates a function like `_.assign`. - * - * @private - * @param {Function} assigner The function to assign values. - * @returns {Function} Returns the new assigner function. - */ - function createAssigner(assigner) { - return baseRest(function(object, sources) { - var index = -1, - length = sources.length, - customizer = length > 1 ? sources[length - 1] : undefined, - guard = length > 2 ? sources[2] : undefined; - - customizer = (assigner.length > 3 && typeof customizer == 'function') - ? (length--, customizer) - : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - customizer = length < 3 ? undefined : customizer; - length = 1; - } - object = Object(object); - while (++index < length) { - var source = sources[index]; - if (source) { - assigner(object, source, index, customizer); - } - } - return object; - }); - } - - /** - * Creates a `baseEach` or `baseEachRight` function. - * - * @private - * @param {Function} eachFunc The function to iterate over a collection. - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseEach(eachFunc, fromRight) { - return function(collection, iteratee) { - if (collection == null) { - return collection; - } - if (!isArrayLike(collection)) { - return eachFunc(collection, iteratee); - } - var length = collection.length, - index = fromRight ? length : -1, - iterable = Object(collection); - - while ((fromRight ? index-- : ++index < length)) { - if (iteratee(iterable[index], index, iterable) === false) { - break; - } - } - return collection; - }; - } - - /** - * Creates a base function for methods like `_.forIn` and `_.forOwn`. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new base function. - */ - function createBaseFor(fromRight) { - return function(object, iteratee, keysFunc) { - var index = -1, - iterable = Object(object), - props = keysFunc(object), - length = props.length; - - while (length--) { - var key = props[fromRight ? length : ++index]; - if (iteratee(iterable[key], key, iterable) === false) { - break; - } - } - return object; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the optional `this` - * binding of `thisArg`. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createBind(func, bitmask, thisArg) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return fn.apply(isBind ? thisArg : this, arguments); - } - return wrapper; - } - - /** - * Creates a function that produces an instance of `Ctor` regardless of - * whether it was invoked as part of a `new` expression or by `call` or `apply`. - * - * @private - * @param {Function} Ctor The constructor to wrap. - * @returns {Function} Returns the new wrapped function. - */ - function createCtor(Ctor) { - return function() { - // Use a `switch` statement to work with class constructors. See - // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist - // for more details. - var args = arguments; - switch (args.length) { - case 0: return new Ctor; - case 1: return new Ctor(args[0]); - case 2: return new Ctor(args[0], args[1]); - case 3: return new Ctor(args[0], args[1], args[2]); - case 4: return new Ctor(args[0], args[1], args[2], args[3]); - case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); - case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); - case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); - } - var thisBinding = baseCreate(Ctor.prototype), - result = Ctor.apply(thisBinding, args); - - // Mimic the constructor's `return` behavior. - // See https://es5.github.io/#x13.2.2 for more details. - return isObject(result) ? result : thisBinding; - }; - } - - /** - * Creates a function that wraps `func` to enable currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {number} arity The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createCurry(func, bitmask, arity) { - var Ctor = createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length, - placeholder = getHolder(wrapper); - - while (index--) { - args[index] = arguments[index]; - } - var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) - ? [] - : replaceHolders(args, placeholder); - - length -= holders.length; - if (length < arity) { - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, undefined, - args, holders, undefined, undefined, arity - length); - } - var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - return apply(fn, this, args); - } - return wrapper; - } - - /** - * Creates a `_.find` or `_.findLast` function. - * - * @private - * @param {Function} findIndexFunc The function to find the collection index. - * @returns {Function} Returns the new find function. - */ - function createFind(findIndexFunc) { - return function(collection, predicate, fromIndex) { - var iterable = Object(collection); - if (!isArrayLike(collection)) { - var iteratee = baseIteratee(predicate, 3); - collection = keys(collection); - predicate = function(key) { return iteratee(iterable[key], key, iterable); }; - } - var index = findIndexFunc(collection, predicate, fromIndex); - return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; - }; - } - - /** - * Creates a function that wraps `func` to invoke it with optional `this` - * binding of `thisArg`, partial application, and currying. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [partialsRight] The arguments to append to those provided - * to the new function. - * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { - var isAry = bitmask & WRAP_ARY_FLAG, - isBind = bitmask & WRAP_BIND_FLAG, - isBindKey = bitmask & WRAP_BIND_KEY_FLAG, - isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), - isFlip = bitmask & WRAP_FLIP_FLAG, - Ctor = isBindKey ? undefined : createCtor(func); - - function wrapper() { - var length = arguments.length, - args = Array(length), - index = length; - - while (index--) { - args[index] = arguments[index]; - } - if (isCurried) { - var placeholder = getHolder(wrapper), - holdersCount = countHolders(args, placeholder); - } - if (partials) { - args = composeArgs(args, partials, holders, isCurried); - } - if (partialsRight) { - args = composeArgsRight(args, partialsRight, holdersRight, isCurried); - } - length -= holdersCount; - if (isCurried && length < arity) { - var newHolders = replaceHolders(args, placeholder); - return createRecurry( - func, bitmask, createHybrid, wrapper.placeholder, thisArg, - args, newHolders, argPos, ary, arity - length - ); - } - var thisBinding = isBind ? thisArg : this, - fn = isBindKey ? thisBinding[func] : func; - - length = args.length; - if (argPos) { - args = reorder(args, argPos); - } else if (isFlip && length > 1) { - args.reverse(); - } - if (isAry && ary < length) { - args.length = ary; - } - if (this && this !== root && this instanceof wrapper) { - fn = Ctor || createCtor(fn); - } - return fn.apply(thisBinding, args); - } - return wrapper; - } - - /** - * Creates a function like `_.invertBy`. - * - * @private - * @param {Function} setter The function to set accumulator values. - * @param {Function} toIteratee The function to resolve iteratees. - * @returns {Function} Returns the new inverter function. - */ - function createInverter(setter, toIteratee) { - return function(object, iteratee) { - return baseInverter(object, setter, toIteratee(iteratee), {}); - }; - } - - /** - * Creates a function that wraps `func` to invoke it with the `this` binding - * of `thisArg` and `partials` prepended to the arguments it receives. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {*} thisArg The `this` binding of `func`. - * @param {Array} partials The arguments to prepend to those provided to - * the new function. - * @returns {Function} Returns the new wrapped function. - */ - function createPartial(func, bitmask, thisArg, partials) { - var isBind = bitmask & WRAP_BIND_FLAG, - Ctor = createCtor(func); - - function wrapper() { - var argsIndex = -1, - argsLength = arguments.length, - leftIndex = -1, - leftLength = partials.length, - args = Array(leftLength + argsLength), - fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; - - while (++leftIndex < leftLength) { - args[leftIndex] = partials[leftIndex]; - } - while (argsLength--) { - args[leftIndex++] = arguments[++argsIndex]; - } - return apply(fn, isBind ? thisArg : this, args); - } - return wrapper; - } - - /** - * Creates a `_.range` or `_.rangeRight` function. - * - * @private - * @param {boolean} [fromRight] Specify iterating from right to left. - * @returns {Function} Returns the new range function. - */ - function createRange(fromRight) { - return function(start, end, step) { - if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { - end = step = undefined; - } - // Ensure the sign of `-0` is preserved. - start = toFinite(start); - if (end === undefined) { - end = start; - start = 0; - } else { - end = toFinite(end); - } - step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); - return baseRange(start, end, step, fromRight); - }; - } - - /** - * Creates a function that wraps `func` to continue currying. - * - * @private - * @param {Function} func The function to wrap. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @param {Function} wrapFunc The function to create the `func` wrapper. - * @param {*} placeholder The placeholder value. - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to prepend to those provided to - * the new function. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { - var isCurry = bitmask & WRAP_CURRY_FLAG, - newHolders = isCurry ? holders : undefined, - newHoldersRight = isCurry ? undefined : holders, - newPartials = isCurry ? partials : undefined, - newPartialsRight = isCurry ? undefined : partials; - - bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); - bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); - - if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { - bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); - } - var newData = [ - func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, - newHoldersRight, argPos, ary, arity - ]; - - var result = wrapFunc.apply(undefined, newData); - if (isLaziable(func)) { - setData(result, newData); - } - result.placeholder = placeholder; - return setWrapToString(result, func, bitmask); - } - - /** - * Creates a set object of `values`. - * - * @private - * @param {Array} values The values to add to the set. - * @returns {Object} Returns the new set. - */ - var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { - return new Set(values); + } + + /** + * The base implementation of `_.reduce` and `_.reduceRight`, without support + * for iteratee shorthands, which iterates over `collection` using `eachFunc`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {*} accumulator The initial value. + * @param {boolean} initAccum Specify using the first or last element of + * `collection` as the initial value. + * @param {Function} eachFunc The function to iterate over `collection`. + * @returns {*} Returns the accumulated value. + */ + function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) { + eachFunc(collection, function(value, index, collection) { + accumulator = initAccum + ? (initAccum = false, value) + : iteratee(accumulator, value, index, collection); + }); + return accumulator; + } + + /** + * The base implementation of `_.sortBy` which uses `comparer` to define the + * sort order of `array` and replaces criteria objects with their corresponding + * values. + * + * @private + * @param {Array} array The array to sort. + * @param {Function} comparer The function to define sort order. + * @returns {Array} Returns `array`. + */ + function baseSortBy(array, comparer) { + var length = array.length; + + array.sort(comparer); + while (length--) { + array[length] = array[length].value; + } + return array; + } + + /** + * The base implementation of `_.times` without support for iteratee shorthands + * or max array length checks. + * + * @private + * @param {number} n The number of times to invoke `iteratee`. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the array of results. + */ + function baseTimes(n, iteratee) { + var index = -1, + result = Array(n); + + while (++index < n) { + result[index] = iteratee(index); + } + return result; + } + + /** + * The base implementation of `_.unary` without support for storing metadata. + * + * @private + * @param {Function} func The function to cap arguments for. + * @returns {Function} Returns the new capped function. + */ + function baseUnary(func) { + return function(value) { + return func(value); }; - - /** - * Creates a function that either curries or invokes `func` with optional - * `this` binding and partially applied arguments. - * - * @private - * @param {Function|string} func The function or method name to wrap. - * @param {number} bitmask The bitmask flags. - * 1 - `_.bind` - * 2 - `_.bindKey` - * 4 - `_.curry` or `_.curryRight` of a bound function - * 8 - `_.curry` - * 16 - `_.curryRight` - * 32 - `_.partial` - * 64 - `_.partialRight` - * 128 - `_.rearg` - * 256 - `_.ary` - * 512 - `_.flip` - * @param {*} [thisArg] The `this` binding of `func`. - * @param {Array} [partials] The arguments to be partially applied. - * @param {Array} [holders] The `partials` placeholder indexes. - * @param {Array} [argPos] The argument positions of the new function. - * @param {number} [ary] The arity cap of `func`. - * @param {number} [arity] The arity of `func`. - * @returns {Function} Returns the new wrapped function. - */ - function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { - var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; - if (!isBindKey && typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - var length = partials ? partials.length : 0; - if (!length) { - bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); - partials = holders = undefined; - } - ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); - arity = arity === undefined ? arity : toInteger(arity); - length -= holders ? holders.length : 0; - - if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { - var partialsRight = partials, - holdersRight = holders; - - partials = holders = undefined; - } - var data = isBindKey ? undefined : getData(func); - - var newData = [ - func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, - argPos, ary, arity - ]; - - if (data) { - mergeData(newData, data); - } - func = newData[0]; - bitmask = newData[1]; - thisArg = newData[2]; - partials = newData[3]; - holders = newData[4]; - arity = newData[9] = newData[9] === undefined - ? (isBindKey ? 0 : func.length) - : nativeMax(newData[9] - length, 0); - - if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { - bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); - } - if (!bitmask || bitmask == WRAP_BIND_FLAG) { - var result = createBind(func, bitmask, thisArg); - } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { - result = createCurry(func, bitmask, arity); - } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { - result = createPartial(func, bitmask, thisArg, partials); - } else { - result = createHybrid.apply(undefined, newData); - } - var setter = data ? baseSetData : setData; - return setWrapToString(setter(result, newData), func, bitmask); - } - - /** - * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source - * objects into destination objects that are passed thru. - * - * @private - * @param {*} objValue The destination value. - * @param {*} srcValue The source value. - * @param {string} key The key of the property to merge. - * @param {Object} object The parent object of `objValue`. - * @param {Object} source The parent object of `srcValue`. - * @param {Object} [stack] Tracks traversed source values and their merged - * counterparts. - * @returns {*} Returns the value to assign. - */ - function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { - if (isObject(objValue) && isObject(srcValue)) { - // Recursively merge objects and arrays (susceptible to call stack limits). - stack.set(srcValue, objValue); - baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); - stack['delete'](srcValue); - } - return objValue; - } - - /** - * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain - * objects. - * - * @private - * @param {*} value The value to inspect. - * @param {string} key The key of the property to inspect. - * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. - */ - function customOmitClone(value) { - return isPlainObject(value) ? undefined : value; - } - - /** - * A specialized version of `baseIsEqualDeep` for arrays with support for - * partial deep comparisons. - * - * @private - * @param {Array} array The array to compare. - * @param {Array} other The other array to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `array` and `other` objects. - * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. - */ - function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - arrLength = array.length, - othLength = other.length; - - if (arrLength != othLength && !(isPartial && othLength > arrLength)) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(array); - if (stacked && stack.get(other)) { - return stacked == other; - } - var index = -1, - result = true, - seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; - - stack.set(array, other); - stack.set(other, array); - - // Ignore non-index properties. - while (++index < arrLength) { - var arrValue = array[index], - othValue = other[index]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, arrValue, index, other, array, stack) - : customizer(arrValue, othValue, index, array, other, stack); - } - if (compared !== undefined) { - if (compared) { - continue; - } - result = false; - break; - } - // Recursively compare arrays (susceptible to call stack limits). - if (seen) { - if (!arraySome(other, function(othValue, othIndex) { - if (!cacheHas(seen, othIndex) && - (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { - return seen.push(othIndex); - } - })) { - result = false; - break; - } - } else if (!( - arrValue === othValue || - equalFunc(arrValue, othValue, bitmask, customizer, stack) - )) { - result = false; - break; - } - } - stack['delete'](array); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseIsEqualDeep` for comparing objects of - * the same `toStringTag`. - * - * **Note:** This function only supports comparing values with tags of - * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {string} tag The `toStringTag` of the objects to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { - switch (tag) { - case dataViewTag: - if ((object.byteLength != other.byteLength) || - (object.byteOffset != other.byteOffset)) { - return false; - } - object = object.buffer; - other = other.buffer; - - case arrayBufferTag: - if ((object.byteLength != other.byteLength) || - !equalFunc(new Uint8Array(object), new Uint8Array(other))) { - return false; - } - return true; - - case boolTag: - case dateTag: - case numberTag: - // Coerce booleans to `1` or `0` and dates to milliseconds. - // Invalid dates are coerced to `NaN`. - return eq(+object, +other); - - case errorTag: - return object.name == other.name && object.message == other.message; - - case regexpTag: - case stringTag: - // Coerce regexes to strings and treat strings, primitives and objects, - // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring - // for more details. - return object == (other + ''); - - case mapTag: - var convert = mapToArray; - - case setTag: - var isPartial = bitmask & COMPARE_PARTIAL_FLAG; - convert || (convert = setToArray); - - if (object.size != other.size && !isPartial) { - return false; - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked) { - return stacked == other; - } - bitmask |= COMPARE_UNORDERED_FLAG; - - // Recursively compare objects (susceptible to call stack limits). - stack.set(object, other); - var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); - stack['delete'](object); - return result; - - case symbolTag: - if (symbolValueOf) { - return symbolValueOf.call(object) == symbolValueOf.call(other); - } - } - return false; - } - - /** - * A specialized version of `baseIsEqualDeep` for objects with support for - * partial deep comparisons. - * - * @private - * @param {Object} object The object to compare. - * @param {Object} other The other object to compare. - * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. - * @param {Function} customizer The function to customize comparisons. - * @param {Function} equalFunc The function to determine equivalents of values. - * @param {Object} stack Tracks traversed `object` and `other` objects. - * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. - */ - function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { - var isPartial = bitmask & COMPARE_PARTIAL_FLAG, - objProps = getAllKeys(object), - objLength = objProps.length, - othProps = getAllKeys(other), - othLength = othProps.length; - - if (objLength != othLength && !isPartial) { - return false; - } - var index = objLength; - while (index--) { - var key = objProps[index]; - if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { - return false; - } - } - // Assume cyclic values are equal. - var stacked = stack.get(object); - if (stacked && stack.get(other)) { - return stacked == other; - } - var result = true; - stack.set(object, other); - stack.set(other, object); - - var skipCtor = isPartial; - while (++index < objLength) { - key = objProps[index]; - var objValue = object[key], - othValue = other[key]; - - if (customizer) { - var compared = isPartial - ? customizer(othValue, objValue, key, other, object, stack) - : customizer(objValue, othValue, key, object, other, stack); - } - // Recursively compare objects (susceptible to call stack limits). - if (!(compared === undefined - ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) - : compared - )) { - result = false; - break; - } - skipCtor || (skipCtor = key == 'constructor'); - } - if (result && !skipCtor) { - var objCtor = object.constructor, - othCtor = other.constructor; - - // Non `Object` object instances with different constructors are not equal. - if (objCtor != othCtor && - ('constructor' in object && 'constructor' in other) && - !(typeof objCtor == 'function' && objCtor instanceof objCtor && - typeof othCtor == 'function' && othCtor instanceof othCtor)) { - result = false; - } - } - stack['delete'](object); - stack['delete'](other); - return result; - } - - /** - * A specialized version of `baseRest` which flattens the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @returns {Function} Returns the new function. - */ - function flatRest(func) { - return setToString(overRest(func, undefined, flatten), func + ''); - } - - /** - * Creates an array of own enumerable property names and symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeys(object) { - return baseGetAllKeys(object, keys, getSymbols); - } - - /** - * Creates an array of own and inherited enumerable property names and - * symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names and symbols. - */ - function getAllKeysIn(object) { - return baseGetAllKeys(object, keysIn, getSymbolsIn); - } - - /** - * Gets metadata for `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {*} Returns the metadata for `func`. - */ - var getData = !metaMap ? noop : function(func) { - return metaMap.get(func); + } + + /** + * The base implementation of `_.values` and `_.valuesIn` which creates an + * array of `object` property values corresponding to the property names + * of `props`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} props The property names to get values for. + * @returns {Object} Returns the array of property values. + */ + function baseValues(object, props) { + return arrayMap(props, function(key) { + return object[key]; + }); + } + + /** + * Checks if a `cache` value for `key` exists. + * + * @private + * @param {Object} cache The cache to query. + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function cacheHas(cache, key) { + return cache.has(key); + } + + /** + * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the first unmatched string symbol. + */ + function charsStartIndex(strSymbols, chrSymbols) { + var index = -1, + length = strSymbols.length; + + while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol + * that is not found in the character symbols. + * + * @private + * @param {Array} strSymbols The string symbols to inspect. + * @param {Array} chrSymbols The character symbols to find. + * @returns {number} Returns the index of the last unmatched string symbol. + */ + function charsEndIndex(strSymbols, chrSymbols) { + var index = strSymbols.length; + + while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} + return index; + } + + /** + * Gets the number of `placeholder` occurrences in `array`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} placeholder The placeholder to search for. + * @returns {number} Returns the placeholder count. + */ + function countHolders(array, placeholder) { + var length = array.length, + result = 0; + + while (length--) { + if (array[length] === placeholder) { + ++result; + } + } + return result; + } + + /** + * Used by `_.escape` to convert characters to HTML entities. + * + * @private + * @param {string} chr The matched character to escape. + * @returns {string} Returns the escaped character. + */ + var escapeHtmlChar = basePropertyOf(htmlEscapes); + + /** + * Gets the value at `key` of `object`. + * + * @private + * @param {Object} [object] The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function getValue(object, key) { + return object == null ? undefined : object[key]; + } + + /** + * Checks if `string` contains Unicode symbols. + * + * @private + * @param {string} string The string to inspect. + * @returns {boolean} Returns `true` if a symbol is found, else `false`. + */ + function hasUnicode(string) { + return reHasUnicode.test(string); + } + + /** + * Converts `iterator` to an array. + * + * @private + * @param {Object} iterator The iterator to convert. + * @returns {Array} Returns the converted array. + */ + function iteratorToArray(iterator) { + var data, + result = []; + + while (!(data = iterator.next()).done) { + result.push(data.value); + } + return result; + } + + /** + * Converts `map` to its key-value pairs. + * + * @private + * @param {Object} map The map to convert. + * @returns {Array} Returns the key-value pairs. + */ + function mapToArray(map) { + var index = -1, + result = Array(map.size); + + map.forEach(function(value, key) { + result[++index] = [key, value]; + }); + return result; + } + + /** + * Creates a unary function that invokes `func` with its argument transformed. + * + * @private + * @param {Function} func The function to wrap. + * @param {Function} transform The argument transform. + * @returns {Function} Returns the new function. + */ + function overArg(func, transform) { + return function(arg) { + return func(transform(arg)); }; - - /** - * Gets the name of `func`. - * - * @private - * @param {Function} func The function to query. - * @returns {string} Returns the function name. - */ - function getFuncName(func) { - var result = (func.name + ''), - array = realNames[result], - length = hasOwnProperty.call(realNames, result) ? array.length : 0; - - while (length--) { - var data = array[length], - otherFunc = data.func; - if (otherFunc == null || otherFunc == func) { - return data.name; - } - } - return result; - } - - /** - * Gets the argument placeholder value for `func`. - * - * @private - * @param {Function} func The function to inspect. - * @returns {*} Returns the placeholder value. - */ - function getHolder(func) { - var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; - return object.placeholder; - } - - /** - * Gets the data for `map`. - * - * @private - * @param {Object} map The map to query. - * @param {string} key The reference key. - * @returns {*} Returns the map data. - */ - function getMapData(map, key) { - var data = map.__data__; - return isKeyable(key) - ? data[typeof key == 'string' ? 'string' : 'hash'] - : data.map; - } - - /** - * Gets the property names, values, and compare flags of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the match data of `object`. - */ - function getMatchData(object) { - var result = keys(object), - length = result.length; - - while (length--) { - var key = result[length], - value = object[key]; - - result[length] = [key, value, isStrictComparable(value)]; - } - return result; - } - - /** - * Gets the native function at `key` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {string} key The key of the method to get. - * @returns {*} Returns the function if it's native, else `undefined`. - */ - function getNative(object, key) { - var value = getValue(object, key); - return baseIsNative(value) ? value : undefined; - } - - /** - * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the raw `toStringTag`. - */ - function getRawTag(value) { - var isOwn = hasOwnProperty.call(value, symToStringTag), - tag = value[symToStringTag]; - - try { - value[symToStringTag] = undefined; - var unmasked = true; - } catch (e) {} - - var result = nativeObjectToString.call(value); - if (unmasked) { - if (isOwn) { - value[symToStringTag] = tag; - } else { - delete value[symToStringTag]; - } - } - return result; - } - - /** - * Creates an array of the own enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbols = !nativeGetSymbols ? stubArray : function(object) { - if (object == null) { - return []; - } - object = Object(object); - return arrayFilter(nativeGetSymbols(object), function(symbol) { - return propertyIsEnumerable.call(object, symbol); - }); + } + + /** + * Replaces all `placeholder` elements in `array` with an internal placeholder + * and returns an array of their indexes. + * + * @private + * @param {Array} array The array to modify. + * @param {*} placeholder The placeholder to replace. + * @returns {Array} Returns the new array of placeholder indexes. + */ + function replaceHolders(array, placeholder) { + var index = -1, + length = array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value === placeholder || value === PLACEHOLDER) { + array[index] = PLACEHOLDER; + result[resIndex++] = index; + } + } + return result; + } + + /** + * Gets the value at `key`, unless `key` is "__proto__". + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the property to get. + * @returns {*} Returns the property value. + */ + function safeGet(object, key) { + return key == '__proto__' + ? undefined + : object[key]; + } + + /** + * Converts `set` to an array of its values. + * + * @private + * @param {Object} set The set to convert. + * @returns {Array} Returns the values. + */ + function setToArray(set) { + var index = -1, + result = Array(set.size); + + set.forEach(function(value) { + result[++index] = value; + }); + return result; + } + + /** + * A specialized version of `_.indexOf` which performs strict equality + * comparisons of values, i.e. `===`. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} fromIndex The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function strictIndexOf(array, value, fromIndex) { + var index = fromIndex - 1, + length = array.length; + + while (++index < length) { + if (array[index] === value) { + return index; + } + } + return -1; + } + + /** + * Gets the number of symbols in `string`. + * + * @private + * @param {string} string The string to inspect. + * @returns {number} Returns the string size. + */ + function stringSize(string) { + return hasUnicode(string) + ? unicodeSize(string) + : asciiSize(string); + } + + /** + * Converts `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function stringToArray(string) { + return hasUnicode(string) + ? unicodeToArray(string) + : asciiToArray(string); + } + + /** + * Gets the size of a Unicode `string`. + * + * @private + * @param {string} string The string inspect. + * @returns {number} Returns the string size. + */ + function unicodeSize(string) { + var result = reUnicode.lastIndex = 0; + while (reUnicode.test(string)) { + ++result; + } + return result; + } + + /** + * Converts a Unicode `string` to an array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the converted array. + */ + function unicodeToArray(string) { + return string.match(reUnicode) || []; + } + + /*--------------------------------------------------------------------------*/ + + /** Used for built-in method references. */ + var arrayProto = Array.prototype, + funcProto = Function.prototype, + objectProto = Object.prototype; + + /** Used to detect overreaching core-js shims. */ + var coreJsData = root['__core-js_shared__']; + + /** Used to resolve the decompiled source of functions. */ + var funcToString = funcProto.toString; + + /** Used to check objects for own properties. */ + var hasOwnProperty = objectProto.hasOwnProperty; + + /** Used to generate unique IDs. */ + var idCounter = 0; + + /** Used to detect methods masquerading as native. */ + var maskSrcKey = (function() { + var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || ''); + return uid ? ('Symbol(src)_1.' + uid) : ''; + }()); + + /** + * Used to resolve the + * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring) + * of values. + */ + var nativeObjectToString = objectProto.toString; + + /** Used to infer the `Object` constructor. */ + var objectCtorString = funcToString.call(Object); + + /** Used to restore the original `_` reference in `_.noConflict`. */ + var oldDash = root._; + + /** Used to detect if a method is native. */ + var reIsNative = RegExp('^' + + funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&') + .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$' + ); + + /** Built-in value references. */ + var Buffer = moduleExports ? root.Buffer : undefined, + Symbol = root.Symbol, + Uint8Array = root.Uint8Array, + allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined, + getPrototype = overArg(Object.getPrototypeOf, Object), + objectCreate = Object.create, + propertyIsEnumerable = objectProto.propertyIsEnumerable, + splice = arrayProto.splice, + spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined, + symIterator = Symbol ? Symbol.iterator : undefined, + symToStringTag = Symbol ? Symbol.toStringTag : undefined; + + var defineProperty = (function() { + try { + var func = getNative(Object, 'defineProperty'); + func({}, '', {}); + return func; + } catch (e) {} + }()); + + /* Built-in method references for those with the same name as other `lodash` methods. */ + var nativeCeil = Math.ceil, + nativeFloor = Math.floor, + nativeGetSymbols = Object.getOwnPropertySymbols, + nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined, + nativeIsFinite = root.isFinite, + nativeKeys = overArg(Object.keys, Object), + nativeMax = Math.max, + nativeMin = Math.min, + nativeNow = Date.now, + nativeRandom = Math.random, + nativeReverse = arrayProto.reverse; + + /* Built-in method references that are verified to be native. */ + var DataView = getNative(root, 'DataView'), + Map = getNative(root, 'Map'), + Promise = getNative(root, 'Promise'), + Set = getNative(root, 'Set'), + WeakMap = getNative(root, 'WeakMap'), + nativeCreate = getNative(Object, 'create'); + + /** Used to store function metadata. */ + var metaMap = WeakMap && new WeakMap; + + /** Used to lookup unminified function names. */ + var realNames = {}; + + /** Used to detect maps, sets, and weakmaps. */ + var dataViewCtorString = toSource(DataView), + mapCtorString = toSource(Map), + promiseCtorString = toSource(Promise), + setCtorString = toSource(Set), + weakMapCtorString = toSource(WeakMap); + + /** Used to convert symbols to primitives and strings. */ + var symbolProto = Symbol ? Symbol.prototype : undefined, + symbolValueOf = symbolProto ? symbolProto.valueOf : undefined, + symbolToString = symbolProto ? symbolProto.toString : undefined; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` object which wraps `value` to enable implicit method + * chain sequences. Methods that operate on and return arrays, collections, + * and functions can be chained together. Methods that retrieve a single value + * or may return a primitive value will automatically end the chain sequence + * and return the unwrapped value. Otherwise, the value must be unwrapped + * with `_#value`. + * + * Explicit chain sequences, which must be unwrapped with `_#value`, may be + * enabled using `_.chain`. + * + * The execution of chained methods is lazy, that is, it's deferred until + * `_#value` is implicitly or explicitly called. + * + * Lazy evaluation allows several methods to support shortcut fusion. + * Shortcut fusion is an optimization to merge iteratee calls; this avoids + * the creation of intermediate arrays and can greatly reduce the number of + * iteratee executions. Sections of a chain sequence qualify for shortcut + * fusion if the section is applied to an array and iteratees accept only + * one argument. The heuristic for whether a section qualifies for shortcut + * fusion is subject to change. + * + * Chaining is supported in custom builds as long as the `_#value` method is + * directly or indirectly included in the build. + * + * In addition to lodash methods, wrappers have `Array` and `String` methods. + * + * The wrapper `Array` methods are: + * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift` + * + * The wrapper `String` methods are: + * `replace` and `split` + * + * The wrapper methods that support shortcut fusion are: + * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`, + * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`, + * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray` + * + * The chainable wrapper methods are: + * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`, + * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`, + * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`, + * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`, + * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`, + * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`, + * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`, + * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`, + * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`, + * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`, + * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`, + * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`, + * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`, + * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`, + * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`, + * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`, + * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`, + * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`, + * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`, + * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`, + * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`, + * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`, + * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`, + * `zipObject`, `zipObjectDeep`, and `zipWith` + * + * The wrapper methods that are **not** chainable by default are: + * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`, + * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`, + * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`, + * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`, + * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`, + * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`, + * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`, + * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, + * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, + * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, + * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`, + * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`, + * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`, + * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`, + * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`, + * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`, + * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`, + * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`, + * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`, + * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`, + * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`, + * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`, + * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`, + * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`, + * `upperFirst`, `value`, and `words` + * + * @name _ + * @constructor + * @category Seq + * @param {*} value The value to wrap in a `lodash` instance. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2, 3]); + * + * // Returns an unwrapped value. + * wrapped.reduce(_.add); + * // => 6 + * + * // Returns a wrapped value. + * var squares = wrapped.map(square); + * + * _.isArray(squares); + * // => false + * + * _.isArray(squares.value()); + * // => true + */ + function lodash(value) { + if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) { + if (value instanceof LodashWrapper) { + return value; + } + if (hasOwnProperty.call(value, '__wrapped__')) { + return wrapperClone(value); + } + } + return new LodashWrapper(value); + } + + /** + * The base implementation of `_.create` without support for assigning + * properties to the created object. + * + * @private + * @param {Object} proto The object to inherit from. + * @returns {Object} Returns the new object. + */ + var baseCreate = (function() { + function object() {} + return function(proto) { + if (!isObject(proto)) { + return {}; + } + if (objectCreate) { + return objectCreate(proto); + } + object.prototype = proto; + var result = new object; + object.prototype = undefined; + return result; }; - - /** - * Creates an array of the own and inherited enumerable symbols of `object`. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of symbols. - */ - var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { - var result = []; - while (object) { - arrayPush(result, getSymbols(object)); - object = getPrototype(object); - } - return result; + }()); + + /** + * The function whose prototype chain sequence wrappers inherit from. + * + * @private + */ + function baseLodash() { + // No operation performed. + } + + /** + * The base constructor for creating `lodash` wrapper objects. + * + * @private + * @param {*} value The value to wrap. + * @param {boolean} [chainAll] Enable explicit method chain sequences. + */ + function LodashWrapper(value, chainAll) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__chain__ = !!chainAll; + this.__index__ = 0; + this.__values__ = undefined; + } + + // Ensure wrappers are instances of `baseLodash`. + lodash.prototype = baseLodash.prototype; + lodash.prototype.constructor = lodash; + + LodashWrapper.prototype = baseCreate(baseLodash.prototype); + LodashWrapper.prototype.constructor = LodashWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation. + * + * @private + * @constructor + * @param {*} value The value to wrap. + */ + function LazyWrapper(value) { + this.__wrapped__ = value; + this.__actions__ = []; + this.__dir__ = 1; + this.__filtered__ = false; + this.__iteratees__ = []; + this.__takeCount__ = MAX_ARRAY_LENGTH; + this.__views__ = []; + } + + /** + * Creates a clone of the lazy wrapper object. + * + * @private + * @name clone + * @memberOf LazyWrapper + * @returns {Object} Returns the cloned `LazyWrapper` object. + */ + function lazyClone() { + var result = new LazyWrapper(this.__wrapped__); + result.__actions__ = copyArray(this.__actions__); + result.__dir__ = this.__dir__; + result.__filtered__ = this.__filtered__; + result.__iteratees__ = copyArray(this.__iteratees__); + result.__takeCount__ = this.__takeCount__; + result.__views__ = copyArray(this.__views__); + return result; + } + + /** + * Reverses the direction of lazy iteration. + * + * @private + * @name reverse + * @memberOf LazyWrapper + * @returns {Object} Returns the new reversed `LazyWrapper` object. + */ + function lazyReverse() { + if (this.__filtered__) { + var result = new LazyWrapper(this); + result.__dir__ = -1; + result.__filtered__ = true; + } else { + result = this.clone(); + result.__dir__ *= -1; + } + return result; + } + + /** + * Extracts the unwrapped value from its lazy wrapper. + * + * @private + * @name value + * @memberOf LazyWrapper + * @returns {*} Returns the unwrapped value. + */ + function lazyValue() { + var array = this.__wrapped__.value(), + dir = this.__dir__, + isArr = isArray(array), + isRight = dir < 0, + arrLength = isArr ? array.length : 0, + view = getView(0, arrLength, this.__views__), + start = view.start, + end = view.end, + length = end - start, + index = isRight ? end : (start - 1), + iteratees = this.__iteratees__, + iterLength = iteratees.length, + resIndex = 0, + takeCount = nativeMin(length, this.__takeCount__); + + if (!isArr || (!isRight && arrLength == length && takeCount == length)) { + return baseWrapperValue(array, this.__actions__); + } + var result = []; + + outer: + while (length-- && resIndex < takeCount) { + index += dir; + + var iterIndex = -1, + value = array[index]; + + while (++iterIndex < iterLength) { + var data = iteratees[iterIndex], + iteratee = data.iteratee, + type = data.type, + computed = iteratee(value); + + if (type == LAZY_MAP_FLAG) { + value = computed; + } else if (!computed) { + if (type == LAZY_FILTER_FLAG) { + continue outer; + } else { + break outer; + } + } + } + result[resIndex++] = value; + } + return result; + } + + // Ensure `LazyWrapper` is an instance of `baseLodash`. + LazyWrapper.prototype = baseCreate(baseLodash.prototype); + LazyWrapper.prototype.constructor = LazyWrapper; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a hash object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Hash(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the hash. + * + * @private + * @name clear + * @memberOf Hash + */ + function hashClear() { + this.__data__ = nativeCreate ? nativeCreate(null) : {}; + this.size = 0; + } + + /** + * Removes `key` and its value from the hash. + * + * @private + * @name delete + * @memberOf Hash + * @param {Object} hash The hash to modify. + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function hashDelete(key) { + var result = this.has(key) && delete this.__data__[key]; + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the hash value for `key`. + * + * @private + * @name get + * @memberOf Hash + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function hashGet(key) { + var data = this.__data__; + if (nativeCreate) { + var result = data[key]; + return result === HASH_UNDEFINED ? undefined : result; + } + return hasOwnProperty.call(data, key) ? data[key] : undefined; + } + + /** + * Checks if a hash value for `key` exists. + * + * @private + * @name has + * @memberOf Hash + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function hashHas(key) { + var data = this.__data__; + return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key); + } + + /** + * Sets the hash `key` to `value`. + * + * @private + * @name set + * @memberOf Hash + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the hash instance. + */ + function hashSet(key, value) { + var data = this.__data__; + this.size += this.has(key) ? 0 : 1; + data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value; + return this; + } + + // Add methods to `Hash`. + Hash.prototype.clear = hashClear; + Hash.prototype['delete'] = hashDelete; + Hash.prototype.get = hashGet; + Hash.prototype.has = hashHas; + Hash.prototype.set = hashSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an list cache object. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function ListCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the list cache. + * + * @private + * @name clear + * @memberOf ListCache + */ + function listCacheClear() { + this.__data__ = []; + this.size = 0; + } + + /** + * Removes `key` and its value from the list cache. + * + * @private + * @name delete + * @memberOf ListCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function listCacheDelete(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + return false; + } + var lastIndex = data.length - 1; + if (index == lastIndex) { + data.pop(); + } else { + splice.call(data, index, 1); + } + --this.size; + return true; + } + + /** + * Gets the list cache value for `key`. + * + * @private + * @name get + * @memberOf ListCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function listCacheGet(key) { + var data = this.__data__, + index = assocIndexOf(data, key); + + return index < 0 ? undefined : data[index][1]; + } + + /** + * Checks if a list cache value for `key` exists. + * + * @private + * @name has + * @memberOf ListCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function listCacheHas(key) { + return assocIndexOf(this.__data__, key) > -1; + } + + /** + * Sets the list cache `key` to `value`. + * + * @private + * @name set + * @memberOf ListCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the list cache instance. + */ + function listCacheSet(key, value) { + var data = this.__data__, + index = assocIndexOf(data, key); + + if (index < 0) { + ++this.size; + data.push([key, value]); + } else { + data[index][1] = value; + } + return this; + } + + // Add methods to `ListCache`. + ListCache.prototype.clear = listCacheClear; + ListCache.prototype['delete'] = listCacheDelete; + ListCache.prototype.get = listCacheGet; + ListCache.prototype.has = listCacheHas; + ListCache.prototype.set = listCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a map cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function MapCache(entries) { + var index = -1, + length = entries == null ? 0 : entries.length; + + this.clear(); + while (++index < length) { + var entry = entries[index]; + this.set(entry[0], entry[1]); + } + } + + /** + * Removes all key-value entries from the map. + * + * @private + * @name clear + * @memberOf MapCache + */ + function mapCacheClear() { + this.size = 0; + this.__data__ = { + 'hash': new Hash, + 'map': new (Map || ListCache), + 'string': new Hash }; - - /** - * Gets the `toStringTag` of `value`. - * - * @private - * @param {*} value The value to query. - * @returns {string} Returns the `toStringTag`. - */ - var getTag = baseGetTag; - - // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. - if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || - (Map && getTag(new Map) != mapTag) || - (Promise && getTag(Promise.resolve()) != promiseTag) || - (Set && getTag(new Set) != setTag) || - (WeakMap && getTag(new WeakMap) != weakMapTag)) { - getTag = function(value) { - var result = baseGetTag(value), - Ctor = result == objectTag ? value.constructor : undefined, - ctorString = Ctor ? toSource(Ctor) : ''; - - if (ctorString) { - switch (ctorString) { - case dataViewCtorString: return dataViewTag; - case mapCtorString: return mapTag; - case promiseCtorString: return promiseTag; - case setCtorString: return setTag; - case weakMapCtorString: return weakMapTag; - } - } - return result; - }; - } - - /** - * Gets the view, applying any `transforms` to the `start` and `end` positions. - * - * @private - * @param {number} start The start of the view. - * @param {number} end The end of the view. - * @param {Array} transforms The transformations to apply to the view. - * @returns {Object} Returns an object containing the `start` and `end` - * positions of the view. - */ - function getView(start, end, transforms) { - var index = -1, - length = transforms.length; - - while (++index < length) { - var data = transforms[index], - size = data.size; - - switch (data.type) { - case 'drop': start += size; break; - case 'dropRight': end -= size; break; - case 'take': end = nativeMin(end, start + size); break; - case 'takeRight': start = nativeMax(start, end - size); break; - } - } - return { 'start': start, 'end': end }; - } - - /** - * Extracts wrapper details from the `source` body comment. - * - * @private - * @param {string} source The source to inspect. - * @returns {Array} Returns the wrapper details. - */ - function getWrapDetails(source) { - var match = source.match(reWrapDetails); - return match ? match[1].split(reSplitDetails) : []; - } - - /** - * Checks if `path` exists on `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @param {Function} hasFunc The function to check properties. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - */ - function hasPath(object, path, hasFunc) { - path = castPath(path, object); - - var index = -1, - length = path.length, - result = false; - - while (++index < length) { - var key = toKey(path[index]); - if (!(result = object != null && hasFunc(object, key))) { - break; - } - object = object[key]; - } - if (result || ++index != length) { - return result; - } - length = object == null ? 0 : object.length; - return !!length && isLength(length) && isIndex(key, length) && - (isArray(object) || isArguments(object)); - } - - /** - * Initializes an array clone. - * - * @private - * @param {Array} array The array to clone. - * @returns {Array} Returns the initialized clone. - */ - function initCloneArray(array) { - var length = array.length, - result = new array.constructor(length); - - // Add properties assigned by `RegExp#exec`. - if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { - result.index = array.index; - result.input = array.input; - } - return result; - } - - /** - * Initializes an object clone. - * - * @private - * @param {Object} object The object to clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneObject(object) { - return (typeof object.constructor == 'function' && !isPrototype(object)) - ? baseCreate(getPrototype(object)) - : {}; - } - - /** - * Initializes an object clone based on its `toStringTag`. - * - * **Note:** This function only supports cloning values with tags of - * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. - * - * @private - * @param {Object} object The object to clone. - * @param {string} tag The `toStringTag` of the object to clone. - * @param {boolean} [isDeep] Specify a deep clone. - * @returns {Object} Returns the initialized clone. - */ - function initCloneByTag(object, tag, isDeep) { - var Ctor = object.constructor; - switch (tag) { - case arrayBufferTag: - return cloneArrayBuffer(object); - - case boolTag: - case dateTag: - return new Ctor(+object); - - case dataViewTag: - return cloneDataView(object, isDeep); - - case float32Tag: case float64Tag: - case int8Tag: case int16Tag: case int32Tag: - case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: - return cloneTypedArray(object, isDeep); - - case mapTag: - return new Ctor; - - case numberTag: - case stringTag: - return new Ctor(object); - - case regexpTag: - return cloneRegExp(object); - - case setTag: - return new Ctor; - - case symbolTag: - return cloneSymbol(object); - } - } - - /** - * Inserts wrapper `details` in a comment at the top of the `source` body. - * - * @private - * @param {string} source The source to modify. - * @returns {Array} details The details to insert. - * @returns {string} Returns the modified source. - */ - function insertWrapDetails(source, details) { - var length = details.length; - if (!length) { - return source; - } - var lastIndex = length - 1; - details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; - details = details.join(length > 2 ? ', ' : ' '); - return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); - } - - /** - * Checks if `value` is a flattenable `arguments` object or array. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. - */ - function isFlattenable(value) { - return isArray(value) || isArguments(value) || - !!(spreadableSymbol && value && value[spreadableSymbol]); - } - - /** - * Checks if `value` is a valid array-like index. - * - * @private - * @param {*} value The value to check. - * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. - * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. - */ - function isIndex(value, length) { - var type = typeof value; - length = length == null ? MAX_SAFE_INTEGER : length; - - return !!length && - (type == 'number' || - (type != 'symbol' && reIsUint.test(value))) && - (value > -1 && value % 1 == 0 && value < length); - } - - /** - * Checks if the given arguments are from an iteratee call. - * - * @private - * @param {*} value The potential iteratee value argument. - * @param {*} index The potential iteratee index or key argument. - * @param {*} object The potential iteratee object argument. - * @returns {boolean} Returns `true` if the arguments are from an iteratee call, - * else `false`. - */ - function isIterateeCall(value, index, object) { - if (!isObject(object)) { - return false; - } - var type = typeof index; - if (type == 'number' - ? (isArrayLike(object) && isIndex(index, object.length)) - : (type == 'string' && index in object) - ) { - return eq(object[index], value); - } - return false; - } - - /** - * Checks if `value` is a property name and not a property path. - * - * @private - * @param {*} value The value to check. - * @param {Object} [object] The object to query keys on. - * @returns {boolean} Returns `true` if `value` is a property name, else `false`. - */ - function isKey(value, object) { - if (isArray(value)) { - return false; - } - var type = typeof value; - if (type == 'number' || type == 'symbol' || type == 'boolean' || - value == null || isSymbol(value)) { - return true; - } - return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || - (object != null && value in Object(object)); - } - - /** - * Checks if `value` is suitable for use as unique object key. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is suitable, else `false`. - */ - function isKeyable(value) { - var type = typeof value; - return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') - ? (value !== '__proto__') - : (value === null); - } - - /** - * Checks if `func` has a lazy counterpart. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` has a lazy counterpart, - * else `false`. - */ - function isLaziable(func) { - var funcName = getFuncName(func), - other = lodash[funcName]; - - if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { - return false; - } - if (func === other) { - return true; - } - var data = getData(other); - return !!data && func === data[0]; - } - - /** - * Checks if `func` has its source masked. - * - * @private - * @param {Function} func The function to check. - * @returns {boolean} Returns `true` if `func` is masked, else `false`. - */ - function isMasked(func) { - return !!maskSrcKey && (maskSrcKey in func); - } - - /** - * Checks if `value` is likely a prototype object. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. - */ - function isPrototype(value) { - var Ctor = value && value.constructor, - proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; - - return value === proto; - } - - /** - * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. - * - * @private - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` if suitable for strict - * equality comparisons, else `false`. - */ - function isStrictComparable(value) { - return value === value && !isObject(value); - } - - /** - * A specialized version of `matchesProperty` for source values suitable - * for strict equality comparisons, i.e. `===`. - * - * @private - * @param {string} key The key of the property to get. - * @param {*} srcValue The value to match. - * @returns {Function} Returns the new spec function. - */ - function matchesStrictComparable(key, srcValue) { - return function(object) { - if (object == null) { - return false; - } - return object[key] === srcValue && - (srcValue !== undefined || (key in Object(object))); - }; - } - - /** - * A specialized version of `_.memoize` which clears the memoized function's - * cache when it exceeds `MAX_MEMOIZE_SIZE`. - * - * @private - * @param {Function} func The function to have its output memoized. - * @returns {Function} Returns the new memoized function. - */ - function memoizeCapped(func) { - var result = memoize(func, function(key) { - if (cache.size === MAX_MEMOIZE_SIZE) { - cache.clear(); - } - return key; - }); - - var cache = result.cache; - return result; - } - - /** - * Merges the function metadata of `source` into `data`. - * - * Merging metadata reduces the number of wrappers used to invoke a function. - * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` - * may be applied regardless of execution order. Methods like `_.ary` and - * `_.rearg` modify function arguments, making the order in which they are - * executed important, preventing the merging of metadata. However, we make - * an exception for a safe combined case where curried functions have `_.ary` - * and or `_.rearg` applied. - * - * @private - * @param {Array} data The destination metadata. - * @param {Array} source The source metadata. - * @returns {Array} Returns `data`. - */ - function mergeData(data, source) { - var bitmask = data[1], - srcBitmask = source[1], - newBitmask = bitmask | srcBitmask, - isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); - - var isCombo = - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || - ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || - ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); - - // Exit early if metadata can't be merged. - if (!(isCommon || isCombo)) { - return data; - } - // Use source `thisArg` if available. - if (srcBitmask & WRAP_BIND_FLAG) { - data[2] = source[2]; - // Set when currying a bound function. - newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; - } - // Compose partial arguments. - var value = source[3]; - if (value) { - var partials = data[3]; - data[3] = partials ? composeArgs(partials, value, source[4]) : value; - data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; - } - // Compose partial right arguments. - value = source[5]; - if (value) { - partials = data[5]; - data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; - data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; - } - // Use source `argPos` if available. - value = source[7]; - if (value) { - data[7] = value; - } - // Use source `ary` if it's smaller. - if (srcBitmask & WRAP_ARY_FLAG) { - data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); - } - // Use source `arity` if one is not provided. - if (data[9] == null) { - data[9] = source[9]; - } - // Use source `func` and merge bitmasks. - data[0] = source[0]; - data[1] = newBitmask; - - return data; - } - - /** - * This function is like - * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * except that it includes inherited enumerable properties. - * - * @private - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - */ - function nativeKeysIn(object) { - var result = []; - if (object != null) { - for (var key in Object(object)) { - result.push(key); - } - } - return result; - } - - /** - * Converts `value` to a string using `Object.prototype.toString`. - * - * @private - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - */ - function objectToString(value) { - return nativeObjectToString.call(value); - } - - /** - * A specialized version of `baseRest` which transforms the rest array. - * - * @private - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @param {Function} transform The rest array transform. - * @returns {Function} Returns the new function. - */ - function overRest(func, start, transform) { - start = nativeMax(start === undefined ? (func.length - 1) : start, 0); - return function() { - var args = arguments, - index = -1, - length = nativeMax(args.length - start, 0), - array = Array(length); - - while (++index < length) { - array[index] = args[start + index]; - } - index = -1; - var otherArgs = Array(start + 1); - while (++index < start) { - otherArgs[index] = args[index]; - } - otherArgs[start] = transform(array); - return apply(func, this, otherArgs); - }; - } - - /** - * Gets the parent value at `path` of `object`. - * - * @private - * @param {Object} object The object to query. - * @param {Array} path The path to get the parent value of. - * @returns {*} Returns the parent value. - */ - function parent(object, path) { - return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); - } - - /** - * Reorder `array` according to the specified indexes where the element at - * the first index is assigned as the first element, the element at - * the second index is assigned as the second element, and so on. - * - * @private - * @param {Array} array The array to reorder. - * @param {Array} indexes The arranged array indexes. - * @returns {Array} Returns `array`. - */ - function reorder(array, indexes) { - var arrLength = array.length, - length = nativeMin(indexes.length, arrLength), - oldArray = copyArray(array); - - while (length--) { - var index = indexes[length]; - array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; - } - return array; - } - - /** - * Sets metadata for `func`. - * - * **Note:** If this function becomes hot, i.e. is invoked a lot in a short - * period of time, it will trip its breaker and transition to an identity - * function to avoid garbage collection pauses in V8. See - * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) - * for more details. - * - * @private - * @param {Function} func The function to associate metadata with. - * @param {*} data The metadata. - * @returns {Function} Returns `func`. - */ - var setData = shortOut(baseSetData); - - /** - * Sets the `toString` method of `func` to return `string`. - * - * @private - * @param {Function} func The function to modify. - * @param {Function} string The `toString` result. - * @returns {Function} Returns `func`. - */ - var setToString = shortOut(baseSetToString); - - /** - * Sets the `toString` method of `wrapper` to mimic the source of `reference` - * with wrapper details in a comment at the top of the source body. - * - * @private - * @param {Function} wrapper The function to modify. - * @param {Function} reference The reference function. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Function} Returns `wrapper`. - */ - function setWrapToString(wrapper, reference, bitmask) { - var source = (reference + ''); - return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); - } - - /** - * Creates a function that'll short out and invoke `identity` instead - * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` - * milliseconds. - * - * @private - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new shortable function. - */ - function shortOut(func) { - var count = 0, - lastCalled = 0; - - return function() { - var stamp = nativeNow(), - remaining = HOT_SPAN - (stamp - lastCalled); - - lastCalled = stamp; - if (remaining > 0) { - if (++count >= HOT_COUNT) { - return arguments[0]; - } - } else { - count = 0; - } - return func.apply(undefined, arguments); - }; - } - - /** - * Converts `string` to a property path array. - * - * @private - * @param {string} string The string to convert. - * @returns {Array} Returns the property path array. - */ - var stringToPath = memoizeCapped(function(string) { - var result = []; - if (string.charCodeAt(0) === 46 /* . */) { - result.push(''); - } - string.replace(rePropName, function(match, number, quote, subString) { - result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); - }); - return result; - }); - - /** - * Converts `value` to a string key if it's not a string or symbol. - * - * @private - * @param {*} value The value to inspect. - * @returns {string|symbol} Returns the key. - */ - function toKey(value) { - if (typeof value == 'string' || isSymbol(value)) { - return value; - } - var result = (value + ''); - return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; - } - - /** - * Converts `func` to its source code. - * - * @private - * @param {Function} func The function to convert. - * @returns {string} Returns the source code. - */ - function toSource(func) { - if (func != null) { - try { - return funcToString.call(func); - } catch (e) {} - try { - return (func + ''); - } catch (e) {} - } - return ''; - } - - /** - * Updates wrapper `details` based on `bitmask` flags. - * - * @private - * @returns {Array} details The details to modify. - * @param {number} bitmask The bitmask flags. See `createWrap` for more details. - * @returns {Array} Returns `details`. - */ - function updateWrapDetails(details, bitmask) { - arrayEach(wrapFlags, function(pair) { - var value = '_.' + pair[0]; - if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { - details.push(value); - } - }); - return details.sort(); - } - - /** - * Creates a clone of `wrapper`. - * - * @private - * @param {Object} wrapper The wrapper to clone. - * @returns {Object} Returns the cloned wrapper. - */ - function wrapperClone(wrapper) { - if (wrapper instanceof LazyWrapper) { - return wrapper.clone(); - } - var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); - result.__actions__ = copyArray(wrapper.__actions__); - result.__index__ = wrapper.__index__; - result.__values__ = wrapper.__values__; - return result; - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an array with all falsey values removed. The values `false`, `null`, - * `0`, `""`, `undefined`, and `NaN` are falsey. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to compact. - * @returns {Array} Returns the new array of filtered values. - * @example - * - * _.compact([0, 1, false, 2, '', 3]); - * // => [1, 2, 3] - */ - function compact(array) { - var index = -1, - length = array == null ? 0 : array.length, - resIndex = 0, - result = []; - - while (++index < length) { - var value = array[index]; - if (value) { - result[resIndex++] = value; - } - } - return result; - } - - /** - * Creates a new array concatenating `array` with any additional arrays - * and/or values. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to concatenate. - * @param {...*} [values] The values to concatenate. - * @returns {Array} Returns the new concatenated array. - * @example - * - * var array = [1]; - * var other = _.concat(array, 2, [3], [[4]]); - * - * console.log(other); - * // => [1, 2, 3, [4]] - * - * console.log(array); - * // => [1] - */ - function concat() { - var length = arguments.length; - if (!length) { - return []; - } - var args = Array(length - 1), - array = arguments[0], - index = length; - - while (index--) { - args[index - 1] = arguments[index]; - } - return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); - } - - /** - * Creates an array of `array` values not included in the other given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * **Note:** Unlike `_.pullAll`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...Array} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.without, _.xor - * @example - * - * _.difference([2, 1], [2, 3]); - * // => [1] - */ - var difference = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) - : []; + } + + /** + * Removes `key` and its value from the map. + * + * @private + * @name delete + * @memberOf MapCache + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function mapCacheDelete(key) { + var result = getMapData(this, key)['delete'](key); + this.size -= result ? 1 : 0; + return result; + } + + /** + * Gets the map value for `key`. + * + * @private + * @name get + * @memberOf MapCache + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function mapCacheGet(key) { + return getMapData(this, key).get(key); + } + + /** + * Checks if a map value for `key` exists. + * + * @private + * @name has + * @memberOf MapCache + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function mapCacheHas(key) { + return getMapData(this, key).has(key); + } + + /** + * Sets the map `key` to `value`. + * + * @private + * @name set + * @memberOf MapCache + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the map cache instance. + */ + function mapCacheSet(key, value) { + var data = getMapData(this, key), + size = data.size; + + data.set(key, value); + this.size += data.size == size ? 0 : 1; + return this; + } + + // Add methods to `MapCache`. + MapCache.prototype.clear = mapCacheClear; + MapCache.prototype['delete'] = mapCacheDelete; + MapCache.prototype.get = mapCacheGet; + MapCache.prototype.has = mapCacheHas; + MapCache.prototype.set = mapCacheSet; + + /*------------------------------------------------------------------------*/ + + /** + * + * Creates an array cache object to store unique values. + * + * @private + * @constructor + * @param {Array} [values] The values to cache. + */ + function SetCache(values) { + var index = -1, + length = values == null ? 0 : values.length; + + this.__data__ = new MapCache; + while (++index < length) { + this.add(values[index]); + } + } + + /** + * Adds `value` to the array cache. + * + * @private + * @name add + * @memberOf SetCache + * @alias push + * @param {*} value The value to cache. + * @returns {Object} Returns the cache instance. + */ + function setCacheAdd(value) { + this.__data__.set(value, HASH_UNDEFINED); + return this; + } + + /** + * Checks if `value` is in the array cache. + * + * @private + * @name has + * @memberOf SetCache + * @param {*} value The value to search for. + * @returns {number} Returns `true` if `value` is found, else `false`. + */ + function setCacheHas(value) { + return this.__data__.has(value); + } + + // Add methods to `SetCache`. + SetCache.prototype.add = SetCache.prototype.push = setCacheAdd; + SetCache.prototype.has = setCacheHas; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a stack cache object to store key-value pairs. + * + * @private + * @constructor + * @param {Array} [entries] The key-value pairs to cache. + */ + function Stack(entries) { + var data = this.__data__ = new ListCache(entries); + this.size = data.size; + } + + /** + * Removes all key-value entries from the stack. + * + * @private + * @name clear + * @memberOf Stack + */ + function stackClear() { + this.__data__ = new ListCache; + this.size = 0; + } + + /** + * Removes `key` and its value from the stack. + * + * @private + * @name delete + * @memberOf Stack + * @param {string} key The key of the value to remove. + * @returns {boolean} Returns `true` if the entry was removed, else `false`. + */ + function stackDelete(key) { + var data = this.__data__, + result = data['delete'](key); + + this.size = data.size; + return result; + } + + /** + * Gets the stack value for `key`. + * + * @private + * @name get + * @memberOf Stack + * @param {string} key The key of the value to get. + * @returns {*} Returns the entry value. + */ + function stackGet(key) { + return this.__data__.get(key); + } + + /** + * Checks if a stack value for `key` exists. + * + * @private + * @name has + * @memberOf Stack + * @param {string} key The key of the entry to check. + * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`. + */ + function stackHas(key) { + return this.__data__.has(key); + } + + /** + * Sets the stack `key` to `value`. + * + * @private + * @name set + * @memberOf Stack + * @param {string} key The key of the value to set. + * @param {*} value The value to set. + * @returns {Object} Returns the stack cache instance. + */ + function stackSet(key, value) { + var data = this.__data__; + if (data instanceof ListCache) { + var pairs = data.__data__; + if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) { + pairs.push([key, value]); + this.size = ++data.size; + return this; + } + data = this.__data__ = new MapCache(pairs); + } + data.set(key, value); + this.size = data.size; + return this; + } + + // Add methods to `Stack`. + Stack.prototype.clear = stackClear; + Stack.prototype['delete'] = stackDelete; + Stack.prototype.get = stackGet; + Stack.prototype.has = stackHas; + Stack.prototype.set = stackSet; + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array of the enumerable property names of the array-like `value`. + * + * @private + * @param {*} value The value to query. + * @param {boolean} inherited Specify returning inherited property names. + * @returns {Array} Returns the array of property names. + */ + function arrayLikeKeys(value, inherited) { + var isArr = isArray(value), + isArg = !isArr && isArguments(value), + isBuff = !isArr && !isArg && isBuffer(value), + isType = !isArr && !isArg && !isBuff && isTypedArray(value), + skipIndexes = isArr || isArg || isBuff || isType, + result = skipIndexes ? baseTimes(value.length, String) : [], + length = result.length; + + for (var key in value) { + if ((inherited || hasOwnProperty.call(value, key)) && + !(skipIndexes && ( + // Safari 9 has enumerable `arguments.length` in strict mode. + key == 'length' || + // Node.js 0.10 has enumerable non-index properties on buffers. + (isBuff && (key == 'offset' || key == 'parent')) || + // PhantomJS 2 has enumerable non-index properties on typed arrays. + (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) || + // Skip index properties. + isIndex(key, length) + ))) { + result.push(key); + } + } + return result; + } + + /** + * This function is like `assignValue` except that it doesn't assign + * `undefined` values. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignMergeValue(object, key, value) { + if ((value !== undefined && !eq(object[key], value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Assigns `value` to `key` of `object` if the existing value is not equivalent + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function assignValue(object, key, value) { + var objValue = object[key]; + if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) || + (value === undefined && !(key in object))) { + baseAssignValue(object, key, value); + } + } + + /** + * Gets the index at which the `key` is found in `array` of key-value pairs. + * + * @private + * @param {Array} array The array to inspect. + * @param {*} key The key to search for. + * @returns {number} Returns the index of the matched value, else `-1`. + */ + function assocIndexOf(array, key) { + var length = array.length; + while (length--) { + if (eq(array[length][0], key)) { + return length; + } + } + return -1; + } + + /** + * Aggregates elements of `collection` on `accumulator` with keys transformed + * by `iteratee` and values set by `setter`. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform keys. + * @param {Object} accumulator The initial aggregated object. + * @returns {Function} Returns `accumulator`. + */ + function baseAggregator(collection, setter, iteratee, accumulator) { + baseEach(collection, function(value, key, collection) { + setter(accumulator, value, iteratee(value), collection); }); - - /** - * Creates a slice of `array` with `n` elements dropped from the beginning. - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to drop. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.drop([1, 2, 3]); - * // => [2, 3] - * - * _.drop([1, 2, 3], 2); - * // => [3] - * - * _.drop([1, 2, 3], 5); - * // => [] - * - * _.drop([1, 2, 3], 0); - * // => [1, 2, 3] - */ - function drop(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * This method is like `_.find` except that it returns the index of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': false }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': true } - * ]; - * - * _.findIndex(users, function(o) { return o.user == 'barney'; }); - * // => 0 - * - * // The `_.matches` iteratee shorthand. - * _.findIndex(users, { 'user': 'fred', 'active': false }); - * // => 1 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findIndex(users, ['active', false]); - * // => 0 - * - * // The `_.property` iteratee shorthand. - * _.findIndex(users, 'active'); - * // => 2 - */ - function findIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index); - } - - /** - * This method is like `_.findIndex` except that it iterates over elements - * of `collection` from right to left. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=array.length-1] The index to search from. - * @returns {number} Returns the index of the found element, else `-1`. - * @example - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false }, - * { 'user': 'pebbles', 'active': false } - * ]; - * - * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); - * // => 2 - * - * // The `_.matches` iteratee shorthand. - * _.findLastIndex(users, { 'user': 'barney', 'active': true }); - * // => 0 - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastIndex(users, ['active', false]); - * // => 2 - * - * // The `_.property` iteratee shorthand. - * _.findLastIndex(users, 'active'); - * // => 0 - */ - function findLastIndex(array, predicate, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = length - 1; - if (fromIndex !== undefined) { - index = toInteger(fromIndex); - index = fromIndex < 0 - ? nativeMax(length + index, 0) - : nativeMin(index, length - 1); - } - return baseFindIndex(array, baseIteratee(predicate, 3), index, true); - } - - /** - * Flattens `array` a single level deep. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flatten([1, [2, [3, [4]], 5]]); - * // => [1, 2, [3, [4]], 5] - */ - function flatten(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, 1) : []; - } - - /** - * Recursively flattens `array`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to flatten. - * @returns {Array} Returns the new flattened array. - * @example - * - * _.flattenDeep([1, [2, [3, [4]], 5]]); - * // => [1, 2, 3, 4, 5] - */ - function flattenDeep(array) { - var length = array == null ? 0 : array.length; - return length ? baseFlatten(array, INFINITY) : []; - } - - /** - * Gets the first element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias first - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the first element of `array`. - * @example - * - * _.head([1, 2, 3]); - * // => 1 - * - * _.head([]); - * // => undefined - */ - function head(array) { - return (array && array.length) ? array[0] : undefined; - } - - /** - * Gets the index at which the first occurrence of `value` is found in `array` - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. If `fromIndex` is negative, it's used as the - * offset from the end of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {*} value The value to search for. - * @param {number} [fromIndex=0] The index to search from. - * @returns {number} Returns the index of the matched value, else `-1`. - * @example - * - * _.indexOf([1, 2, 1, 2], 2); - * // => 1 - * - * // Search from the `fromIndex`. - * _.indexOf([1, 2, 1, 2], 2, 2); - * // => 3 - */ - function indexOf(array, value, fromIndex) { - var length = array == null ? 0 : array.length; - if (!length) { - return -1; - } - var index = fromIndex == null ? 0 : toInteger(fromIndex); - if (index < 0) { - index = nativeMax(length + index, 0); - } - return baseIndexOf(array, value, index); - } - - /** - * Gets all but the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.initial([1, 2, 3]); - * // => [1, 2] - */ - function initial(array) { - var length = array == null ? 0 : array.length; - return length ? baseSlice(array, 0, -1) : []; - } - - /** - * Creates an array of unique values that are included in all given arrays - * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. The order and references of result values are - * determined by the first array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of intersecting values. - * @example - * - * _.intersection([2, 1], [2, 3]); - * // => [2] - */ - var intersection = baseRest(function(arrays) { - var mapped = arrayMap(arrays, castArrayLikeObject); - return (mapped.length && mapped[0] === arrays[0]) - ? baseIntersection(mapped) - : []; + return accumulator; + } + + /** + * The base implementation of `_.assign` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssign(object, source) { + return object && copyObject(source, keys(source), object); + } + + /** + * The base implementation of `_.assignIn` without support for multiple sources + * or `customizer` functions. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @returns {Object} Returns `object`. + */ + function baseAssignIn(object, source) { + return object && copyObject(source, keysIn(source), object); + } + + /** + * The base implementation of `assignValue` and `assignMergeValue` without + * value checks. + * + * @private + * @param {Object} object The object to modify. + * @param {string} key The key of the property to assign. + * @param {*} value The value to assign. + */ + function baseAssignValue(object, key, value) { + if (key == '__proto__' && defineProperty) { + defineProperty(object, key, { + 'configurable': true, + 'enumerable': true, + 'value': value, + 'writable': true + }); + } else { + object[key] = value; + } + } + + /** + * The base implementation of `_.at` without support for individual paths. + * + * @private + * @param {Object} object The object to iterate over. + * @param {string[]} paths The property paths to pick. + * @returns {Array} Returns the picked elements. + */ + function baseAt(object, paths) { + var index = -1, + length = paths.length, + result = Array(length), + skip = object == null; + + while (++index < length) { + result[index] = skip ? undefined : get(object, paths[index]); + } + return result; + } + + /** + * The base implementation of `_.clamp` which doesn't coerce arguments. + * + * @private + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + */ + function baseClamp(number, lower, upper) { + if (number === number) { + if (upper !== undefined) { + number = number <= upper ? number : upper; + } + if (lower !== undefined) { + number = number >= lower ? number : lower; + } + } + return number; + } + + /** + * The base implementation of `_.clone` and `_.cloneDeep` which tracks + * traversed objects. + * + * @private + * @param {*} value The value to clone. + * @param {boolean} bitmask The bitmask flags. + * 1 - Deep clone + * 2 - Flatten inherited properties + * 4 - Clone symbols + * @param {Function} [customizer] The function to customize cloning. + * @param {string} [key] The key of `value`. + * @param {Object} [object] The parent object of `value`. + * @param {Object} [stack] Tracks traversed objects and their clone counterparts. + * @returns {*} Returns the cloned value. + */ + function baseClone(value, bitmask, customizer, key, object, stack) { + var result, + isDeep = bitmask & CLONE_DEEP_FLAG, + isFlat = bitmask & CLONE_FLAT_FLAG, + isFull = bitmask & CLONE_SYMBOLS_FLAG; + + if (customizer) { + result = object ? customizer(value, key, object, stack) : customizer(value); + } + if (result !== undefined) { + return result; + } + if (!isObject(value)) { + return value; + } + var isArr = isArray(value); + if (isArr) { + result = initCloneArray(value); + if (!isDeep) { + return copyArray(value, result); + } + } else { + var tag = getTag(value), + isFunc = tag == funcTag || tag == genTag; + + if (isBuffer(value)) { + return cloneBuffer(value, isDeep); + } + if (tag == objectTag || tag == argsTag || (isFunc && !object)) { + result = (isFlat || isFunc) ? {} : initCloneObject(value); + if (!isDeep) { + return isFlat + ? copySymbolsIn(value, baseAssignIn(result, value)) + : copySymbols(value, baseAssign(result, value)); + } + } else { + if (!cloneableTags[tag]) { + return object ? value : {}; + } + result = initCloneByTag(value, tag, isDeep); + } + } + // Check for circular references and return its corresponding clone. + stack || (stack = new Stack); + var stacked = stack.get(value); + if (stacked) { + return stacked; + } + stack.set(value, result); + + if (isSet(value)) { + value.forEach(function(subValue) { + result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack)); + }); + + return result; + } + + if (isMap(value)) { + value.forEach(function(subValue, key) { + result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack)); + }); + + return result; + } + + var keysFunc = isFull + ? (isFlat ? getAllKeysIn : getAllKeys) + : (isFlat ? keysIn : keys); + + var props = isArr ? undefined : keysFunc(value); + arrayEach(props || value, function(subValue, key) { + if (props) { + key = subValue; + subValue = value[key]; + } + // Recursively populate clone (susceptible to call stack limits). + assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack)); }); - - /** - * Gets the last element of `array`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @returns {*} Returns the last element of `array`. - * @example - * - * _.last([1, 2, 3]); - * // => 3 - */ - function last(array) { - var length = array == null ? 0 : array.length; - return length ? array[length - 1] : undefined; - } - - /** - * Reverses `array` so that the first element becomes the last, the second - * element becomes the second to last, and so on. - * - * **Note:** This method mutates `array` and is based on - * [`Array#reverse`](https://mdn.io/Array/reverse). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to modify. - * @returns {Array} Returns `array`. - * @example - * - * var array = [1, 2, 3]; - * - * _.reverse(array); - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function reverse(array) { - return array == null ? array : nativeReverse.call(array); - } - - /** - * Creates a slice of `array` from `start` up to, but not including, `end`. - * - * **Note:** This method is used instead of - * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are - * returned. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to slice. - * @param {number} [start=0] The start position. - * @param {number} [end=array.length] The end position. - * @returns {Array} Returns the slice of `array`. - */ - function slice(array, start, end) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { - start = 0; - end = length; - } - else { - start = start == null ? 0 : toInteger(start); - end = end === undefined ? length : toInteger(end); - } - return baseSlice(array, start, end); - } - - /** - * Creates a slice of `array` with `n` elements taken from the beginning. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.take([1, 2, 3]); - * // => [1] - * - * _.take([1, 2, 3], 2); - * // => [1, 2] - * - * _.take([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.take([1, 2, 3], 0); - * // => [] - */ - function take(array, n, guard) { - if (!(array && array.length)) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - return baseSlice(array, 0, n < 0 ? 0 : n); - } - - /** - * Creates a slice of `array` with `n` elements taken from the end. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Array - * @param {Array} array The array to query. - * @param {number} [n=1] The number of elements to take. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {Array} Returns the slice of `array`. - * @example - * - * _.takeRight([1, 2, 3]); - * // => [3] - * - * _.takeRight([1, 2, 3], 2); - * // => [2, 3] - * - * _.takeRight([1, 2, 3], 5); - * // => [1, 2, 3] - * - * _.takeRight([1, 2, 3], 0); - * // => [] - */ - function takeRight(array, n, guard) { - var length = array == null ? 0 : array.length; - if (!length) { - return []; - } - n = (guard || n === undefined) ? 1 : toInteger(n); - n = length - n; - return baseSlice(array, n < 0 ? 0 : n, length); - } - - /** - * Creates an array of unique values, in order, from all given arrays using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to inspect. - * @returns {Array} Returns the new array of combined values. - * @example - * - * _.union([2], [1, 2]); - * // => [2, 1] - */ - var union = baseRest(function(arrays) { - return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + return result; + } + + /** + * The base implementation of `_.delay` and `_.defer` which accepts `args` + * to provide to `func`. + * + * @private + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {Array} args The arguments to provide to `func`. + * @returns {number|Object} Returns the timer id or timeout object. + */ + function baseDelay(func, wait, args) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return setTimeout(function() { func.apply(undefined, args); }, wait); + } + + /** + * The base implementation of methods like `_.difference` without support + * for excluding multiple arrays or iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Array} values The values to exclude. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of filtered values. + */ + function baseDifference(array, values, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + isCommon = true, + length = array.length, + result = [], + valuesLength = values.length; + + if (!length) { + return result; + } + if (iteratee) { + values = arrayMap(values, baseUnary(iteratee)); + } + if (comparator) { + includes = arrayIncludesWith; + isCommon = false; + } + else if (values.length >= LARGE_ARRAY_SIZE) { + includes = cacheHas; + isCommon = false; + values = new SetCache(values); + } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee == null ? value : iteratee(value); + + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var valuesIndex = valuesLength; + while (valuesIndex--) { + if (values[valuesIndex] === computed) { + continue outer; + } + } + result.push(value); + } + else if (!includes(values, computed, comparator)) { + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.forEach` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + */ + var baseEach = createBaseEach(baseForOwn); + + /** + * The base implementation of `_.every` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false` + */ + function baseEvery(collection, predicate) { + var result = true; + baseEach(collection, function(value, index, collection) { + result = !!predicate(value, index, collection); + return result; }); - - /** - * Creates a duplicate-free version of an array, using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons, in which only the first occurrence of each element - * is kept. The order of result values is determined by the order they occur - * in the array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniq([2, 1, 2]); - * // => [2, 1] - */ - function uniq(array) { - return (array && array.length) ? baseUniq(array) : []; - } - - /** - * This method is like `_.uniq` except that it accepts `iteratee` which is - * invoked for each element in `array` to generate the criterion by which - * uniqueness is computed. The order of result values is determined by the - * order they occur in the array. The iteratee is invoked with one argument: - * (value). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Array} Returns the new duplicate free array. - * @example - * - * _.uniqBy([2.1, 1.2, 2.3], Math.floor); - * // => [2.1, 1.2] - * - * // The `_.property` iteratee shorthand. - * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); - * // => [{ 'x': 1 }, { 'x': 2 }] - */ - function uniqBy(array, iteratee) { - return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; - } - - /** - * This method is like `_.zip` except that it accepts an array of grouped - * elements and creates an array regrouping the elements to their pre-zip - * configuration. - * - * @static - * @memberOf _ - * @since 1.2.0 - * @category Array - * @param {Array} array The array of grouped elements to process. - * @returns {Array} Returns the new array of regrouped elements. - * @example - * - * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - * - * _.unzip(zipped); - * // => [['a', 'b'], [1, 2], [true, false]] - */ - function unzip(array) { - if (!(array && array.length)) { - return []; - } - var length = 0; - array = arrayFilter(array, function(group) { - if (isArrayLikeObject(group)) { - length = nativeMax(group.length, length); - return true; - } - }); - return baseTimes(length, function(index) { - return arrayMap(array, baseProperty(index)); - }); - } - - /** - * Creates an array excluding all given values using - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * for equality comparisons. - * - * **Note:** Unlike `_.pull`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {Array} array The array to inspect. - * @param {...*} [values] The values to exclude. - * @returns {Array} Returns the new array of filtered values. - * @see _.difference, _.xor - * @example - * - * _.without([2, 1, 2, 3], 1, 2); - * // => [3] - */ - var without = baseRest(function(array, values) { - return isArrayLikeObject(array) - ? baseDifference(array, values) - : []; + return result; + } + + /** + * The base implementation of methods like `_.max` and `_.min` which accepts a + * `comparator` to determine the extremum value. + * + * @private + * @param {Array} array The array to iterate over. + * @param {Function} iteratee The iteratee invoked per iteration. + * @param {Function} comparator The comparator used to compare values. + * @returns {*} Returns the extremum value. + */ + function baseExtremum(array, iteratee, comparator) { + var index = -1, + length = array.length; + + while (++index < length) { + var value = array[index], + current = iteratee(value); + + if (current != null && (computed === undefined + ? (current === current && !isSymbol(current)) + : comparator(current, computed) + )) { + var computed = current, + result = value; + } + } + return result; + } + + /** + * The base implementation of `_.filter` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + */ + function baseFilter(collection, predicate) { + var result = []; + baseEach(collection, function(value, index, collection) { + if (predicate(value, index, collection)) { + result.push(value); + } }); - - /** - * Creates an array of grouped elements, the first of which contains the - * first elements of the given arrays, the second of which contains the - * second elements of the given arrays, and so on. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Array - * @param {...Array} [arrays] The arrays to process. - * @returns {Array} Returns the new array of grouped elements. - * @example - * - * _.zip(['a', 'b'], [1, 2], [true, false]); - * // => [['a', 1, true], ['b', 2, false]] - */ - var zip = baseRest(unzip); - - /** - * This method is like `_.fromPairs` except that it accepts two arrays, - * one of property identifiers and one of corresponding values. - * - * @static - * @memberOf _ - * @since 0.4.0 - * @category Array - * @param {Array} [props=[]] The property identifiers. - * @param {Array} [values=[]] The property values. - * @returns {Object} Returns the new object. - * @example - * - * _.zipObject(['a', 'b'], [1, 2]); - * // => { 'a': 1, 'b': 2 } - */ - function zipObject(props, values) { - return baseZipObject(props || [], values || [], assignValue); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a `lodash` wrapper instance that wraps `value` with explicit method - * chain sequences enabled. The result of such sequences must be unwrapped - * with `_#value`. - * - * @static - * @memberOf _ - * @since 1.3.0 - * @category Seq - * @param {*} value The value to wrap. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'pebbles', 'age': 1 } - * ]; - * - * var youngest = _ - * .chain(users) - * .sortBy('age') - * .map(function(o) { - * return o.user + ' is ' + o.age; - * }) - * .head() - * .value(); - * // => 'pebbles is 1' - */ - function chain(value) { - var result = lodash(value); - result.__chain__ = true; - return result; + return result; + } + + /** + * The base implementation of `_.flatten` with support for restricting flattening. + * + * @private + * @param {Array} array The array to flatten. + * @param {number} depth The maximum recursion depth. + * @param {boolean} [predicate=isFlattenable] The function invoked per iteration. + * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks. + * @param {Array} [result=[]] The initial result value. + * @returns {Array} Returns the new flattened array. + */ + function baseFlatten(array, depth, predicate, isStrict, result) { + var index = -1, + length = array.length; + + predicate || (predicate = isFlattenable); + result || (result = []); + + while (++index < length) { + var value = array[index]; + if (depth > 0 && predicate(value)) { + if (depth > 1) { + // Recursively flatten arrays (susceptible to call stack limits). + baseFlatten(value, depth - 1, predicate, isStrict, result); + } else { + arrayPush(result, value); + } + } else if (!isStrict) { + result[result.length] = value; + } + } + return result; + } + + /** + * The base implementation of `baseForOwn` which iterates over `object` + * properties returned by `keysFunc` and invokes `iteratee` for each property. + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseFor = createBaseFor(); + + /** + * This function is like `baseFor` except that it iterates over properties + * in the opposite order. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @param {Function} keysFunc The function to get the keys of `object`. + * @returns {Object} Returns `object`. + */ + var baseForRight = createBaseFor(true); + + /** + * The base implementation of `_.forOwn` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwn(object, iteratee) { + return object && baseFor(object, iteratee, keys); + } + + /** + * The base implementation of `_.forOwnRight` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Object} Returns `object`. + */ + function baseForOwnRight(object, iteratee) { + return object && baseForRight(object, iteratee, keys); + } + + /** + * The base implementation of `_.functions` which creates an array of + * `object` function property names filtered from `props`. + * + * @private + * @param {Object} object The object to inspect. + * @param {Array} props The property names to filter. + * @returns {Array} Returns the function names. + */ + function baseFunctions(object, props) { + return arrayFilter(props, function(key) { + return isFunction(object[key]); + }); + } + + /** + * The base implementation of `_.get` without support for default values. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @returns {*} Returns the resolved value. + */ + function baseGet(object, path) { + path = castPath(path, object); + + var index = 0, + length = path.length; + + while (object != null && index < length) { + object = object[toKey(path[index++])]; + } + return (index && index == length) ? object : undefined; + } + + /** + * The base implementation of `getAllKeys` and `getAllKeysIn` which uses + * `keysFunc` and `symbolsFunc` to get the enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Function} keysFunc The function to get the keys of `object`. + * @param {Function} symbolsFunc The function to get the symbols of `object`. + * @returns {Array} Returns the array of property names and symbols. + */ + function baseGetAllKeys(object, keysFunc, symbolsFunc) { + var result = keysFunc(object); + return isArray(object) ? result : arrayPush(result, symbolsFunc(object)); + } + + /** + * The base implementation of `getTag` without fallbacks for buggy environments. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + function baseGetTag(value) { + if (value == null) { + return value === undefined ? undefinedTag : nullTag; + } + return (symToStringTag && symToStringTag in Object(value)) + ? getRawTag(value) + : objectToString(value); + } + + /** + * The base implementation of `_.gt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is greater than `other`, + * else `false`. + */ + function baseGt(value, other) { + return value > other; + } + + /** + * The base implementation of `_.has` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHas(object, key) { + return object != null && hasOwnProperty.call(object, key); + } + + /** + * The base implementation of `_.hasIn` without support for deep paths. + * + * @private + * @param {Object} [object] The object to query. + * @param {Array|string} key The key to check. + * @returns {boolean} Returns `true` if `key` exists, else `false`. + */ + function baseHasIn(object, key) { + return object != null && key in Object(object); + } + + /** + * The base implementation of methods like `_.intersection`, without support + * for iteratee shorthands, that accepts an array of arrays to inspect. + * + * @private + * @param {Array} arrays The arrays to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new array of shared values. + */ + function baseIntersection(arrays, iteratee, comparator) { + var includes = comparator ? arrayIncludesWith : arrayIncludes, + length = arrays[0].length, + othLength = arrays.length, + othIndex = othLength, + caches = Array(othLength), + maxLength = Infinity, + result = []; + + while (othIndex--) { + var array = arrays[othIndex]; + if (othIndex && iteratee) { + array = arrayMap(array, baseUnary(iteratee)); + } + maxLength = nativeMin(array.length, maxLength); + caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120)) + ? new SetCache(othIndex && array) + : undefined; + } + array = arrays[0]; + + var index = -1, + seen = caches[0]; + + outer: + while (++index < length && result.length < maxLength) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; + + value = (comparator || value !== 0) ? value : 0; + if (!(seen + ? cacheHas(seen, computed) + : includes(result, computed, comparator) + )) { + othIndex = othLength; + while (--othIndex) { + var cache = caches[othIndex]; + if (!(cache + ? cacheHas(cache, computed) + : includes(arrays[othIndex], computed, comparator)) + ) { + continue outer; + } + } + if (seen) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.invert` and `_.invertBy` which inverts + * `object` with values transformed by `iteratee` and set by `setter`. + * + * @private + * @param {Object} object The object to iterate over. + * @param {Function} setter The function to set `accumulator` values. + * @param {Function} iteratee The iteratee to transform values. + * @param {Object} accumulator The initial inverted object. + * @returns {Function} Returns `accumulator`. + */ + function baseInverter(object, setter, iteratee, accumulator) { + baseForOwn(object, function(value, key, object) { + setter(accumulator, iteratee(value), key, object); + }); + return accumulator; + } + + /** + * The base implementation of `_.invoke` without support for individual + * method arguments. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path of the method to invoke. + * @param {Array} args The arguments to invoke the method with. + * @returns {*} Returns the result of the invoked method. + */ + function baseInvoke(object, path, args) { + path = castPath(path, object); + object = parent(object, path); + var func = object == null ? object : object[toKey(last(path))]; + return func == null ? undefined : apply(func, object, args); + } + + /** + * The base implementation of `_.isArguments`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + */ + function baseIsArguments(value) { + return isObjectLike(value) && baseGetTag(value) == argsTag; + } + + /** + * The base implementation of `_.isDate` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + */ + function baseIsDate(value) { + return isObjectLike(value) && baseGetTag(value) == dateTag; + } + + /** + * The base implementation of `_.isEqual` which supports partial comparisons + * and tracks traversed objects. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @param {boolean} bitmask The bitmask flags. + * 1 - Unordered comparison + * 2 - Partial comparison + * @param {Function} [customizer] The function to customize comparisons. + * @param {Object} [stack] Tracks traversed `value` and `other` objects. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + */ + function baseIsEqual(value, other, bitmask, customizer, stack) { + if (value === other) { + return true; + } + if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) { + return value !== value && other !== other; + } + return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack); + } + + /** + * A specialized version of `baseIsEqual` for arrays and objects which performs + * deep comparisons and tracks traversed objects enabling objects with circular + * references to be compared. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} [stack] Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) { + var objIsArr = isArray(object), + othIsArr = isArray(other), + objTag = objIsArr ? arrayTag : getTag(object), + othTag = othIsArr ? arrayTag : getTag(other); + + objTag = objTag == argsTag ? objectTag : objTag; + othTag = othTag == argsTag ? objectTag : othTag; + + var objIsObj = objTag == objectTag, + othIsObj = othTag == objectTag, + isSameTag = objTag == othTag; + + if (isSameTag && isBuffer(object)) { + if (!isBuffer(other)) { + return false; + } + objIsArr = true; + objIsObj = false; } - - /** - * This method invokes `interceptor` and returns `value`. The interceptor - * is invoked with one argument; (value). The purpose of this method is to - * "tap into" a method chain sequence in order to modify intermediate results. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns `value`. - * @example - * - * _([1, 2, 3]) - * .tap(function(array) { - * // Mutate input array. - * array.pop(); - * }) - * .reverse() - * .value(); - * // => [2, 1] - */ - function tap(value, interceptor) { - interceptor(value); - return value; + if (isSameTag && !objIsObj) { + stack || (stack = new Stack); + return (objIsArr || isTypedArray(object)) + ? equalArrays(object, other, bitmask, customizer, equalFunc, stack) + : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack); } + if (!(bitmask & COMPARE_PARTIAL_FLAG)) { + var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'), + othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__'); - /** - * This method is like `_.tap` except that it returns the result of `interceptor`. - * The purpose of this method is to "pass thru" values replacing intermediate - * results in a method chain sequence. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Seq - * @param {*} value The value to provide to `interceptor`. - * @param {Function} interceptor The function to invoke. - * @returns {*} Returns the result of `interceptor`. - * @example - * - * _(' abc ') - * .chain() - * .trim() - * .thru(function(value) { - * return [value]; - * }) - * .value(); - * // => ['abc'] - */ - function thru(value, interceptor) { - return interceptor(value); - } - - /** - * This method is the wrapper version of `_.at`. - * - * @name at - * @memberOf _ - * @since 1.0.0 - * @category Seq - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; - * - * _(object).at(['a[0].b.c', 'a[1]']).value(); - * // => [3, 4] - */ - var wrapperAt = flatRest(function(paths) { - var length = paths.length, - start = length ? paths[0] : 0, - value = this.__wrapped__, - interceptor = function(object) { return baseAt(object, paths); }; - - if (length > 1 || this.__actions__.length || - !(value instanceof LazyWrapper) || !isIndex(start)) { - return this.thru(interceptor); - } - value = value.slice(start, +start + (length ? 1 : 0)); - value.__actions__.push({ - 'func': thru, - 'args': [interceptor], - 'thisArg': undefined - }); - return new LodashWrapper(value, this.__chain__).thru(function(array) { - if (length && !array.length) { - array.push(undefined); - } - return array; - }); - }); - - /** - * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. - * - * @name chain - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 } - * ]; - * - * // A sequence without explicit chaining. - * _(users).head(); - * // => { 'user': 'barney', 'age': 36 } - * - * // A sequence with explicit chaining. - * _(users) - * .chain() - * .head() - * .pick('user') - * .value(); - * // => { 'user': 'barney' } - */ - function wrapperChain() { - return chain(this); - } - - /** - * Executes the chain sequence and returns the wrapped result. - * - * @name commit - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2]; - * var wrapped = _(array).push(3); - * - * console.log(array); - * // => [1, 2] - * - * wrapped = wrapped.commit(); - * console.log(array); - * // => [1, 2, 3] - * - * wrapped.last(); - * // => 3 - * - * console.log(array); - * // => [1, 2, 3] - */ - function wrapperCommit() { - return new LodashWrapper(this.value(), this.__chain__); - } - - /** - * Gets the next value on a wrapped object following the - * [iterator protocol](https://mdn.io/iteration_protocols#iterator). - * - * @name next - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the next iterator value. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped.next(); - * // => { 'done': false, 'value': 1 } - * - * wrapped.next(); - * // => { 'done': false, 'value': 2 } - * - * wrapped.next(); - * // => { 'done': true, 'value': undefined } - */ - function wrapperNext() { - if (this.__values__ === undefined) { - this.__values__ = toArray(this.value()); - } - var done = this.__index__ >= this.__values__.length, - value = done ? undefined : this.__values__[this.__index__++]; - - return { 'done': done, 'value': value }; - } - - /** - * Enables the wrapper to be iterable. - * - * @name Symbol.iterator - * @memberOf _ - * @since 4.0.0 - * @category Seq - * @returns {Object} Returns the wrapper object. - * @example - * - * var wrapped = _([1, 2]); - * - * wrapped[Symbol.iterator]() === wrapped; - * // => true - * - * Array.from(wrapped); - * // => [1, 2] - */ - function wrapperToIterator() { - return this; - } + if (objIsWrapped || othIsWrapped) { + var objUnwrapped = objIsWrapped ? object.value() : object, + othUnwrapped = othIsWrapped ? other.value() : other; - /** - * Creates a clone of the chain sequence planting `value` as the wrapped value. - * - * @name plant - * @memberOf _ - * @since 3.2.0 - * @category Seq - * @param {*} value The value to plant. - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * function square(n) { - * return n * n; - * } - * - * var wrapped = _([1, 2]).map(square); - * var other = wrapped.plant([3, 4]); - * - * other.value(); - * // => [9, 16] - * - * wrapped.value(); - * // => [1, 4] - */ - function wrapperPlant(value) { - var result, - parent = this; - - while (parent instanceof baseLodash) { - var clone = wrapperClone(parent); - clone.__index__ = 0; - clone.__values__ = undefined; - if (result) { - previous.__wrapped__ = clone; - } else { - result = clone; - } - var previous = clone; - parent = parent.__wrapped__; - } - previous.__wrapped__ = value; - return result; + stack || (stack = new Stack); + return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack); + } + } + if (!isSameTag) { + return false; + } + stack || (stack = new Stack); + return equalObjects(object, other, bitmask, customizer, equalFunc, stack); + } + + /** + * The base implementation of `_.isMap` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + */ + function baseIsMap(value) { + return isObjectLike(value) && getTag(value) == mapTag; + } + + /** + * The base implementation of `_.isMatch` without support for iteratee shorthands. + * + * @private + * @param {Object} object The object to inspect. + * @param {Object} source The object of property values to match. + * @param {Array} matchData The property names, values, and compare flags to match. + * @param {Function} [customizer] The function to customize comparisons. + * @returns {boolean} Returns `true` if `object` is a match, else `false`. + */ + function baseIsMatch(object, source, matchData, customizer) { + var index = matchData.length, + length = index, + noCustomizer = !customizer; + + if (object == null) { + return !length; + } + object = Object(object); + while (index--) { + var data = matchData[index]; + if ((noCustomizer && data[2]) + ? data[1] !== object[data[0]] + : !(data[0] in object) + ) { + return false; + } } + while (++index < length) { + data = matchData[index]; + var key = data[0], + objValue = object[key], + srcValue = data[1]; - /** - * This method is the wrapper version of `_.reverse`. - * - * **Note:** This method mutates the wrapped array. - * - * @name reverse - * @memberOf _ - * @since 0.1.0 - * @category Seq - * @returns {Object} Returns the new `lodash` wrapper instance. - * @example - * - * var array = [1, 2, 3]; - * - * _(array).reverse().value() - * // => [3, 2, 1] - * - * console.log(array); - * // => [3, 2, 1] - */ - function wrapperReverse() { - var value = this.__wrapped__; - if (value instanceof LazyWrapper) { - var wrapped = value; - if (this.__actions__.length) { - wrapped = new LazyWrapper(this); - } - wrapped = wrapped.reverse(); - wrapped.__actions__.push({ - 'func': thru, - 'args': [reverse], - 'thisArg': undefined - }); - return new LodashWrapper(wrapped, this.__chain__); + if (noCustomizer && data[2]) { + if (objValue === undefined && !(key in object)) { + return false; } - return this.thru(reverse); - } - - /** - * Executes the chain sequence to resolve the unwrapped value. - * - * @name value - * @memberOf _ - * @since 0.1.0 - * @alias toJSON, valueOf - * @category Seq - * @returns {*} Returns the resolved unwrapped value. - * @example - * - * _([1, 2, 3]).value(); - * // => [1, 2, 3] - */ - function wrapperValue() { - return baseWrapperValue(this.__wrapped__, this.__actions__); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates an object composed of keys generated from the results of running - * each element of `collection` thru `iteratee`. The corresponding value of - * each key is the number of times the key was returned by `iteratee`. The - * iteratee is invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.5.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The iteratee to transform keys. - * @returns {Object} Returns the composed aggregate object. - * @example - * - * _.countBy([6.1, 4.2, 6.3], Math.floor); - * // => { '4': 1, '6': 2 } - * - * // The `_.property` iteratee shorthand. - * _.countBy(['one', 'two', 'three'], 'length'); - * // => { '3': 2, '5': 1 } - */ - var countBy = createAggregator(function(result, value, key) { - if (hasOwnProperty.call(result, key)) { - ++result[key]; - } else { - baseAssignValue(result, key, 1); + } else { + var stack = new Stack; + if (customizer) { + var result = customizer(objValue, srcValue, key, object, source, stack); } + if (!(result === undefined + ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack) + : result + )) { + return false; + } + } + } + return true; + } + + /** + * The base implementation of `_.isNative` without bad shim checks. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a native function, + * else `false`. + */ + function baseIsNative(value) { + if (!isObject(value) || isMasked(value)) { + return false; + } + var pattern = isFunction(value) ? reIsNative : reIsHostCtor; + return pattern.test(toSource(value)); + } + + /** + * The base implementation of `_.isRegExp` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + */ + function baseIsRegExp(value) { + return isObjectLike(value) && baseGetTag(value) == regexpTag; + } + + /** + * The base implementation of `_.isSet` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + */ + function baseIsSet(value) { + return isObjectLike(value) && getTag(value) == setTag; + } + + /** + * The base implementation of `_.isTypedArray` without Node.js optimizations. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + */ + function baseIsTypedArray(value) { + return isObjectLike(value) && + isLength(value.length) && !!typedArrayTags[baseGetTag(value)]; + } + + /** + * The base implementation of `_.iteratee`. + * + * @private + * @param {*} [value=_.identity] The value to convert to an iteratee. + * @returns {Function} Returns the iteratee. + */ + function baseIteratee(value) { + // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9. + // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details. + if (typeof value == 'function') { + return value; + } + if (value == null) { + return identity; + } + if (typeof value == 'object') { + return isArray(value) + ? baseMatchesProperty(value[0], value[1]) + : baseMatches(value); + } + return property(value); + } + + /** + * The base implementation of `_.keys` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeys(object) { + if (!isPrototype(object)) { + return nativeKeys(object); + } + var result = []; + for (var key in Object(object)) { + if (hasOwnProperty.call(object, key) && key != 'constructor') { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function baseKeysIn(object) { + if (!isObject(object)) { + return nativeKeysIn(object); + } + var isProto = isPrototype(object), + result = []; + + for (var key in object) { + if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) { + result.push(key); + } + } + return result; + } + + /** + * The base implementation of `_.lt` which doesn't coerce arguments. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if `value` is less than `other`, + * else `false`. + */ + function baseLt(value, other) { + return value < other; + } + + /** + * The base implementation of `_.map` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} iteratee The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + */ + function baseMap(collection, iteratee) { + var index = -1, + result = isArrayLike(collection) ? Array(collection.length) : []; + + baseEach(collection, function(value, key, collection) { + result[++index] = iteratee(value, key, collection); }); + return result; + } + + /** + * The base implementation of `_.matches` which doesn't clone `source`. + * + * @private + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatches(source) { + var matchData = getMatchData(source); + if (matchData.length == 1 && matchData[0][2]) { + return matchesStrictComparable(matchData[0][0], matchData[0][1]); + } + return function(object) { + return object === source || baseIsMatch(object, source, matchData); + }; + } + + /** + * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`. + * + * @private + * @param {string} path The path of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function baseMatchesProperty(path, srcValue) { + if (isKey(path) && isStrictComparable(srcValue)) { + return matchesStrictComparable(toKey(path), srcValue); + } + return function(object) { + var objValue = get(object, path); + return (objValue === undefined && objValue === srcValue) + ? hasIn(object, path) + : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG); + }; + } + + /** + * The base implementation of `_.merge` without support for multiple sources. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {number} srcIndex The index of `source`. + * @param {Function} [customizer] The function to customize merged values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMerge(object, source, srcIndex, customizer, stack) { + if (object === source) { + return; + } + baseFor(source, function(srcValue, key) { + if (isObject(srcValue)) { + stack || (stack = new Stack); + baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack); + } + else { + var newValue = customizer + ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack) + : undefined; - /** - * Checks if `predicate` returns truthy for **all** elements of `collection`. - * Iteration is stopped once `predicate` returns falsey. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * **Note:** This method returns `true` for - * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because - * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of - * elements of empty collections. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if all elements pass the predicate check, - * else `false`. - * @example - * - * _.every([true, 1, null, 'yes'], Boolean); - * // => false - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.every(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.every(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.every(users, 'active'); - * // => false - */ - function every(collection, predicate, guard) { - var func = isArray(collection) ? arrayEvery : baseEvery; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; + if (newValue === undefined) { + newValue = srcValue; } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning an array of all elements - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * **Note:** Unlike `_.remove`, this method returns a new array. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.reject - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * _.filter(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, { 'age': 36, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.filter(users, 'active'); - * // => objects for ['barney'] - */ - function filter(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Iterates over elements of `collection`, returning the first element - * `predicate` returns truthy for. The predicate is invoked with three - * arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param {number} [fromIndex=0] The index to search from. - * @returns {*} Returns the matched element, else `undefined`. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false }, - * { 'user': 'pebbles', 'age': 1, 'active': true } - * ]; - * - * _.find(users, function(o) { return o.age < 40; }); - * // => object for 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.find(users, { 'age': 1, 'active': true }); - * // => object for 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.find(users, ['active', false]); - * // => object for 'fred' - * - * // The `_.property` iteratee shorthand. - * _.find(users, 'active'); - * // => object for 'barney' - */ - var find = createFind(findIndex); - - /** - * Iterates over elements of `collection` and invokes `iteratee` for each element. - * The iteratee is invoked with three arguments: (value, index|key, collection). - * Iteratee functions may exit iteration early by explicitly returning `false`. - * - * **Note:** As with other "Collections" methods, objects with a "length" - * property are iterated like arrays. To avoid this behavior use `_.forIn` - * or `_.forOwn` for object iteration. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @alias each - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array|Object} Returns `collection`. - * @see _.forEachRight - * @example - * - * _.forEach([1, 2], function(value) { - * console.log(value); - * }); - * // => Logs `1` then `2`. - * - * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { - * console.log(key); - * }); - * // => Logs 'a' then 'b' (iteration order is not guaranteed). - */ - function forEach(collection, iteratee) { - var func = isArray(collection) ? arrayEach : baseEach; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Creates an array of values by running each element in `collection` thru - * `iteratee`. The iteratee is invoked with three arguments: - * (value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. - * - * The guarded methods are: - * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, - * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, - * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, - * `template`, `trim`, `trimEnd`, `trimStart`, and `words` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new mapped array. - * @example - * - * function square(n) { - * return n * n; - * } - * - * _.map([4, 8], square); - * // => [16, 64] - * - * _.map({ 'a': 4, 'b': 8 }, square); - * // => [16, 64] (iteration order is not guaranteed) - * - * var users = [ - * { 'user': 'barney' }, - * { 'user': 'fred' } - * ]; - * - * // The `_.property` iteratee shorthand. - * _.map(users, 'user'); - * // => ['barney', 'fred'] - */ - function map(collection, iteratee) { - var func = isArray(collection) ? arrayMap : baseMap; - return func(collection, baseIteratee(iteratee, 3)); - } - - /** - * Reduces `collection` to a value which is the accumulated result of running - * each element in `collection` thru `iteratee`, where each successive - * invocation is supplied the return value of the previous. If `accumulator` - * is not given, the first element of `collection` is used as the initial - * value. The iteratee is invoked with four arguments: - * (accumulator, value, index|key, collection). - * - * Many lodash methods are guarded to work as iteratees for methods like - * `_.reduce`, `_.reduceRight`, and `_.transform`. - * - * The guarded methods are: - * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, - * and `sortBy` - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [iteratee=_.identity] The function invoked per iteration. - * @param {*} [accumulator] The initial value. - * @returns {*} Returns the accumulated value. - * @see _.reduceRight - * @example - * - * _.reduce([1, 2], function(sum, n) { - * return sum + n; - * }, 0); - * // => 3 - * - * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { - * (result[value] || (result[value] = [])).push(key); - * return result; - * }, {}); - * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) - */ - function reduce(collection, iteratee, accumulator) { - var func = isArray(collection) ? arrayReduce : baseReduce, - initAccum = arguments.length < 3; - - return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); - } - - /** - * The opposite of `_.filter`; this method returns the elements of `collection` - * that `predicate` does **not** return truthy for. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {Array} Returns the new filtered array. - * @see _.filter - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': false }, - * { 'user': 'fred', 'age': 40, 'active': true } - * ]; - * - * _.reject(users, function(o) { return !o.active; }); - * // => objects for ['fred'] - * - * // The `_.matches` iteratee shorthand. - * _.reject(users, { 'age': 40, 'active': true }); - * // => objects for ['barney'] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.reject(users, ['active', false]); - * // => objects for ['fred'] - * - * // The `_.property` iteratee shorthand. - * _.reject(users, 'active'); - * // => objects for ['barney'] - */ - function reject(collection, predicate) { - var func = isArray(collection) ? arrayFilter : baseFilter; - return func(collection, negate(baseIteratee(predicate, 3))); - } - - /** - * Gets the size of `collection` by returning its length for array-like - * values or the number of own enumerable string keyed properties for objects. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object|string} collection The collection to inspect. - * @returns {number} Returns the collection size. - * @example - * - * _.size([1, 2, 3]); - * // => 3 - * - * _.size({ 'a': 1, 'b': 2 }); - * // => 2 - * - * _.size('pebbles'); - * // => 7 - */ - function size(collection) { - if (collection == null) { - return 0; - } - if (isArrayLike(collection)) { - return isString(collection) ? stringSize(collection) : collection.length; - } - var tag = getTag(collection); - if (tag == mapTag || tag == setTag) { - return collection.size; - } - return baseKeys(collection).length; - } - - /** - * Checks if `predicate` returns truthy for **any** element of `collection`. - * Iteration is stopped once `predicate` returns truthy. The predicate is - * invoked with three arguments: (value, index|key, collection). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {boolean} Returns `true` if any element passes the predicate check, - * else `false`. - * @example - * - * _.some([null, 0, 'yes', false], Boolean); - * // => true - * - * var users = [ - * { 'user': 'barney', 'active': true }, - * { 'user': 'fred', 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.some(users, { 'user': 'barney', 'active': false }); - * // => false - * - * // The `_.matchesProperty` iteratee shorthand. - * _.some(users, ['active', false]); - * // => true - * - * // The `_.property` iteratee shorthand. - * _.some(users, 'active'); - * // => true - */ - function some(collection, predicate, guard) { - var func = isArray(collection) ? arraySome : baseSome; - if (guard && isIterateeCall(collection, predicate, guard)) { - predicate = undefined; - } - return func(collection, baseIteratee(predicate, 3)); - } - - /** - * Creates an array of elements, sorted in ascending order by the results of - * running each element in a collection thru each iteratee. This method - * performs a stable sort, that is, it preserves the original sort order of - * equal elements. The iteratees are invoked with one argument: (value). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Collection - * @param {Array|Object} collection The collection to iterate over. - * @param {...(Function|Function[])} [iteratees=[_.identity]] - * The iteratees to sort by. - * @returns {Array} Returns the new sorted array. - * @example - * - * var users = [ - * { 'user': 'fred', 'age': 48 }, - * { 'user': 'barney', 'age': 36 }, - * { 'user': 'fred', 'age': 40 }, - * { 'user': 'barney', 'age': 34 } - * ]; - * - * _.sortBy(users, [function(o) { return o.user; }]); - * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] - * - * _.sortBy(users, ['user', 'age']); - * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] - */ - var sortBy = baseRest(function(collection, iteratees) { - if (collection == null) { - return []; - } - var length = iteratees.length; - if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { - iteratees = []; - } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { - iteratees = [iteratees[0]]; + assignMergeValue(object, key, newValue); + } + }, keysIn); + } + + /** + * A specialized version of `baseMerge` for arrays and objects which performs + * deep merges and tracks traversed objects enabling objects with circular + * references to be merged. + * + * @private + * @param {Object} object The destination object. + * @param {Object} source The source object. + * @param {string} key The key of the value to merge. + * @param {number} srcIndex The index of `source`. + * @param {Function} mergeFunc The function to merge values. + * @param {Function} [customizer] The function to customize assigned values. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + */ + function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) { + var objValue = safeGet(object, key), + srcValue = safeGet(source, key), + stacked = stack.get(srcValue); + + if (stacked) { + assignMergeValue(object, key, stacked); + return; + } + var newValue = customizer + ? customizer(objValue, srcValue, (key + ''), object, source, stack) + : undefined; + + var isCommon = newValue === undefined; + + if (isCommon) { + var isArr = isArray(srcValue), + isBuff = !isArr && isBuffer(srcValue), + isTyped = !isArr && !isBuff && isTypedArray(srcValue); + + newValue = srcValue; + if (isArr || isBuff || isTyped) { + if (isArray(objValue)) { + newValue = objValue; + } + else if (isArrayLikeObject(objValue)) { + newValue = copyArray(objValue); + } + else if (isBuff) { + isCommon = false; + newValue = cloneBuffer(srcValue, true); + } + else if (isTyped) { + isCommon = false; + newValue = cloneTypedArray(srcValue, true); } - return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + else { + newValue = []; + } + } + else if (isPlainObject(srcValue) || isArguments(srcValue)) { + newValue = objValue; + if (isArguments(objValue)) { + newValue = toPlainObject(objValue); + } + else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) { + newValue = initCloneObject(srcValue); + } + } + else { + isCommon = false; + } + } + if (isCommon) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, newValue); + mergeFunc(newValue, srcValue, srcIndex, customizer, stack); + stack['delete'](srcValue); + } + assignMergeValue(object, key, newValue); + } + + /** + * The base implementation of `_.orderBy` without param guards. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by. + * @param {string[]} orders The sort orders of `iteratees`. + * @returns {Array} Returns the new sorted array. + */ + function baseOrderBy(collection, iteratees, orders) { + var index = -1; + iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(baseIteratee)); + + var result = baseMap(collection, function(value, key, collection) { + var criteria = arrayMap(iteratees, function(iteratee) { + return iteratee(value); + }); + return { 'criteria': criteria, 'index': ++index, 'value': value }; }); - /*------------------------------------------------------------------------*/ - - /** - * Gets the timestamp of the number of milliseconds that have elapsed since - * the Unix epoch (1 January 1970 00:00:00 UTC). - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Date - * @returns {number} Returns the timestamp. - * @example - * - * _.defer(function(stamp) { - * console.log(_.now() - stamp); - * }, _.now()); - * // => Logs the number of milliseconds it took for the deferred invocation. - */ - var now = function() { - return root.Date.now(); + return baseSortBy(result, function(object, other) { + return compareMultiple(object, other, orders); + }); + } + + /** + * The base implementation of `_.pick` without support for individual + * property identifiers. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @returns {Object} Returns the new object. + */ + function basePick(object, paths) { + return basePickBy(object, paths, function(value, path) { + return hasIn(object, path); + }); + } + + /** + * The base implementation of `_.pickBy` without support for iteratee shorthands. + * + * @private + * @param {Object} object The source object. + * @param {string[]} paths The property paths to pick. + * @param {Function} predicate The function invoked per property. + * @returns {Object} Returns the new object. + */ + function basePickBy(object, paths, predicate) { + var index = -1, + length = paths.length, + result = {}; + + while (++index < length) { + var path = paths[index], + value = baseGet(object, path); + + if (predicate(value, path)) { + baseSet(result, castPath(path, object), value); + } + } + return result; + } + + /** + * A specialized version of `baseProperty` which supports deep paths. + * + * @private + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + */ + function basePropertyDeep(path) { + return function(object) { + return baseGet(object, path); }; - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that invokes `func`, with the `this` binding and arguments - * of the created function, while it's called less than `n` times. Subsequent - * calls to the created function return the result of the last `func` invocation. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {number} n The number of calls at which `func` is no longer invoked. - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * jQuery(element).on('click', _.before(5, addContactToList)); - * // => Allows adding up to 4 contacts to the list. - */ - function before(n, func) { - var result; - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - n = toInteger(n); - return function() { - if (--n > 0) { - result = func.apply(this, arguments); - } - if (n <= 1) { - func = undefined; - } - return result; - }; + } + + /** + * The base implementation of `_.random` without support for returning + * floating-point numbers. + * + * @private + * @param {number} lower The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the random number. + */ + function baseRandom(lower, upper) { + return lower + nativeFloor(nativeRandom() * (upper - lower + 1)); + } + + /** + * The base implementation of `_.range` and `_.rangeRight` which doesn't + * coerce arguments. + * + * @private + * @param {number} start The start of the range. + * @param {number} end The end of the range. + * @param {number} step The value to increment or decrement by. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Array} Returns the range of numbers. + */ + function baseRange(start, end, step, fromRight) { + var index = -1, + length = nativeMax(nativeCeil((end - start) / (step || 1)), 0), + result = Array(length); + + while (length--) { + result[fromRight ? length : ++index] = start; + start += step; + } + return result; + } + + /** + * The base implementation of `_.rest` which doesn't validate or coerce arguments. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + */ + function baseRest(func, start) { + return setToString(overRest(func, start, identity), func + ''); + } + + /** + * The base implementation of `_.set`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The path of the property to set. + * @param {*} value The value to set. + * @param {Function} [customizer] The function to customize path creation. + * @returns {Object} Returns `object`. + */ + function baseSet(object, path, value, customizer) { + if (!isObject(object)) { + return object; + } + path = castPath(path, object); + + var index = -1, + length = path.length, + lastIndex = length - 1, + nested = object; + + while (nested != null && ++index < length) { + var key = toKey(path[index]), + newValue = value; + + if (index != lastIndex) { + var objValue = nested[key]; + newValue = customizer ? customizer(objValue, key, nested) : undefined; + if (newValue === undefined) { + newValue = isObject(objValue) + ? objValue + : (isIndex(path[index + 1]) ? [] : {}); + } + } + assignValue(nested, key, newValue); + nested = nested[key]; + } + return object; + } + + /** + * The base implementation of `setData` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var baseSetData = !metaMap ? identity : function(func, data) { + metaMap.set(func, data); + return func; + }; + + /** + * The base implementation of `setToString` without support for hot loop shorting. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var baseSetToString = !defineProperty ? identity : function(func, string) { + return defineProperty(func, 'toString', { + 'configurable': true, + 'enumerable': false, + 'value': constant(string), + 'writable': true + }); + }; + + /** + * The base implementation of `_.slice` without an iteratee call guard. + * + * @private + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function baseSlice(array, start, end) { + var index = -1, + length = array.length; + + if (start < 0) { + start = -start > length ? 0 : (length + start); + } + end = end > length ? length : end; + if (end < 0) { + end += length; + } + length = start > end ? 0 : ((end - start) >>> 0); + start >>>= 0; + + var result = Array(length); + while (++index < length) { + result[index] = array[index + start]; + } + return result; + } + + /** + * The base implementation of `_.some` without support for iteratee shorthands. + * + * @private + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} predicate The function invoked per iteration. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + */ + function baseSome(collection, predicate) { + var result; + + baseEach(collection, function(value, index, collection) { + result = predicate(value, index, collection); + return !result; + }); + return !!result; + } + + /** + * The base implementation of `_.toString` which doesn't convert nullish + * values to empty strings. + * + * @private + * @param {*} value The value to process. + * @returns {string} Returns the string. + */ + function baseToString(value) { + // Exit early for strings to avoid a performance hit in some environments. + if (typeof value == 'string') { + return value; + } + if (isArray(value)) { + // Recursively convert values (susceptible to call stack limits). + return arrayMap(value, baseToString) + ''; + } + if (isSymbol(value)) { + return symbolToString ? symbolToString.call(value) : ''; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * The base implementation of `_.uniqBy` without support for iteratee shorthands. + * + * @private + * @param {Array} array The array to inspect. + * @param {Function} [iteratee] The iteratee invoked per element. + * @param {Function} [comparator] The comparator invoked per element. + * @returns {Array} Returns the new duplicate free array. + */ + function baseUniq(array, iteratee, comparator) { + var index = -1, + includes = arrayIncludes, + length = array.length, + isCommon = true, + result = [], + seen = result; + + if (comparator) { + isCommon = false; + includes = arrayIncludesWith; + } + else if (length >= LARGE_ARRAY_SIZE) { + var set = iteratee ? null : createSet(array); + if (set) { + return setToArray(set); + } + isCommon = false; + includes = cacheHas; + seen = new SetCache; + } + else { + seen = iteratee ? [] : result; } + outer: + while (++index < length) { + var value = array[index], + computed = iteratee ? iteratee(value) : value; - /** - * Creates a function that invokes `func` with the `this` binding of `thisArg` - * and `partials` prepended to the arguments it receives. - * - * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, - * may be used as a placeholder for partially applied arguments. - * - * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" - * property of bound functions. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to bind. - * @param {*} thisArg The `this` binding of `func`. - * @param {...*} [partials] The arguments to be partially applied. - * @returns {Function} Returns the new bound function. - * @example - * - * function greet(greeting, punctuation) { - * return greeting + ' ' + this.user + punctuation; - * } - * - * var object = { 'user': 'fred' }; - * - * var bound = _.bind(greet, object, 'hi'); - * bound('!'); - * // => 'hi fred!' - * - * // Bound with placeholders. - * var bound = _.bind(greet, object, _, '!'); - * bound('hi'); - * // => 'hi fred!' - */ - var bind = baseRest(function(func, thisArg, partials) { - var bitmask = WRAP_BIND_FLAG; - if (partials.length) { - var holders = replaceHolders(partials, getHolder(bind)); - bitmask |= WRAP_PARTIAL_FLAG; + value = (comparator || value !== 0) ? value : 0; + if (isCommon && computed === computed) { + var seenIndex = seen.length; + while (seenIndex--) { + if (seen[seenIndex] === computed) { + continue outer; + } } - return createWrap(func, bitmask, thisArg, partials, holders); + if (iteratee) { + seen.push(computed); + } + result.push(value); + } + else if (!includes(seen, computed, comparator)) { + if (seen !== result) { + seen.push(computed); + } + result.push(value); + } + } + return result; + } + + /** + * The base implementation of `_.unset`. + * + * @private + * @param {Object} object The object to modify. + * @param {Array|string} path The property path to unset. + * @returns {boolean} Returns `true` if the property is deleted, else `false`. + */ + function baseUnset(object, path) { + path = castPath(path, object); + object = parent(object, path); + return object == null || delete object[toKey(last(path))]; + } + + /** + * The base implementation of `wrapperValue` which returns the result of + * performing a sequence of actions on the unwrapped `value`, where each + * successive action is supplied the return value of the previous. + * + * @private + * @param {*} value The unwrapped value. + * @param {Array} actions Actions to perform to resolve the unwrapped value. + * @returns {*} Returns the resolved value. + */ + function baseWrapperValue(value, actions) { + var result = value; + if (result instanceof LazyWrapper) { + result = result.value(); + } + return arrayReduce(actions, function(result, action) { + return action.func.apply(action.thisArg, arrayPush([result], action.args)); + }, result); + } + + /** + * This base implementation of `_.zipObject` which assigns values using `assignFunc`. + * + * @private + * @param {Array} props The property identifiers. + * @param {Array} values The property values. + * @param {Function} assignFunc The function to assign values. + * @returns {Object} Returns the new object. + */ + function baseZipObject(props, values, assignFunc) { + var index = -1, + length = props.length, + valsLength = values.length, + result = {}; + + while (++index < length) { + var value = index < valsLength ? values[index] : undefined; + assignFunc(result, props[index], value); + } + return result; + } + + /** + * Casts `value` to an empty array if it's not an array like object. + * + * @private + * @param {*} value The value to inspect. + * @returns {Array|Object} Returns the cast array-like object. + */ + function castArrayLikeObject(value) { + return isArrayLikeObject(value) ? value : []; + } + + /** + * Casts `value` to a path array if it's not one. + * + * @private + * @param {*} value The value to inspect. + * @param {Object} [object] The object to query keys on. + * @returns {Array} Returns the cast property path array. + */ + function castPath(value, object) { + if (isArray(value)) { + return value; + } + return isKey(value, object) ? [value] : stringToPath(toString(value)); + } + + /** + * Casts `array` to a slice if it's needed. + * + * @private + * @param {Array} array The array to inspect. + * @param {number} start The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the cast slice. + */ + function castSlice(array, start, end) { + var length = array.length; + end = end === undefined ? length : end; + return (!start && end >= length) ? array : baseSlice(array, start, end); + } + + /** + * Creates a clone of `buffer`. + * + * @private + * @param {Buffer} buffer The buffer to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Buffer} Returns the cloned buffer. + */ + function cloneBuffer(buffer, isDeep) { + if (isDeep) { + return buffer.slice(); + } + var length = buffer.length, + result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length); + + buffer.copy(result); + return result; + } + + /** + * Creates a clone of `arrayBuffer`. + * + * @private + * @param {ArrayBuffer} arrayBuffer The array buffer to clone. + * @returns {ArrayBuffer} Returns the cloned array buffer. + */ + function cloneArrayBuffer(arrayBuffer) { + var result = new arrayBuffer.constructor(arrayBuffer.byteLength); + new Uint8Array(result).set(new Uint8Array(arrayBuffer)); + return result; + } + + /** + * Creates a clone of `dataView`. + * + * @private + * @param {Object} dataView The data view to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned data view. + */ + function cloneDataView(dataView, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer; + return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength); + } + + /** + * Creates a clone of `regexp`. + * + * @private + * @param {Object} regexp The regexp to clone. + * @returns {Object} Returns the cloned regexp. + */ + function cloneRegExp(regexp) { + var result = new regexp.constructor(regexp.source, reFlags.exec(regexp)); + result.lastIndex = regexp.lastIndex; + return result; + } + + /** + * Creates a clone of the `symbol` object. + * + * @private + * @param {Object} symbol The symbol object to clone. + * @returns {Object} Returns the cloned symbol object. + */ + function cloneSymbol(symbol) { + return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {}; + } + + /** + * Creates a clone of `typedArray`. + * + * @private + * @param {Object} typedArray The typed array to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the cloned typed array. + */ + function cloneTypedArray(typedArray, isDeep) { + var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer; + return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length); + } + + /** + * Compares values to sort them in ascending order. + * + * @private + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {number} Returns the sort order indicator for `value`. + */ + function compareAscending(value, other) { + if (value !== other) { + var valIsDefined = value !== undefined, + valIsNull = value === null, + valIsReflexive = value === value, + valIsSymbol = isSymbol(value); + + var othIsDefined = other !== undefined, + othIsNull = other === null, + othIsReflexive = other === other, + othIsSymbol = isSymbol(other); + + if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) || + (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) || + (valIsNull && othIsDefined && othIsReflexive) || + (!valIsDefined && othIsReflexive) || + !valIsReflexive) { + return 1; + } + if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) || + (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) || + (othIsNull && valIsDefined && valIsReflexive) || + (!othIsDefined && valIsReflexive) || + !othIsReflexive) { + return -1; + } + } + return 0; + } + + /** + * Used by `_.orderBy` to compare multiple properties of a value to another + * and stable sort them. + * + * If `orders` is unspecified, all values are sorted in ascending order. Otherwise, + * specify an order of "desc" for descending or "asc" for ascending sort order + * of corresponding values. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {boolean[]|string[]} orders The order to sort by for each property. + * @returns {number} Returns the sort order indicator for `object`. + */ + function compareMultiple(object, other, orders) { + var index = -1, + objCriteria = object.criteria, + othCriteria = other.criteria, + length = objCriteria.length, + ordersLength = orders.length; + + while (++index < length) { + var result = compareAscending(objCriteria[index], othCriteria[index]); + if (result) { + if (index >= ordersLength) { + return result; + } + var order = orders[index]; + return result * (order == 'desc' ? -1 : 1); + } + } + // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications + // that causes it, under certain circumstances, to provide the same value for + // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 + // for more details. + // + // This also ensures a stable sort in V8 and other engines. + // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details. + return object.index - other.index; + } + + /** + * Creates an array that is the composition of partially applied arguments, + * placeholders, and provided arguments into a single array of arguments. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to prepend to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgs(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersLength = holders.length, + leftIndex = -1, + leftLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(leftLength + rangeLength), + isUncurried = !isCurried; + + while (++leftIndex < leftLength) { + result[leftIndex] = partials[leftIndex]; + } + while (++argsIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[holders[argsIndex]] = args[argsIndex]; + } + } + while (rangeLength--) { + result[leftIndex++] = args[argsIndex++]; + } + return result; + } + + /** + * This function is like `composeArgs` except that the arguments composition + * is tailored for `_.partialRight`. + * + * @private + * @param {Array} args The provided arguments. + * @param {Array} partials The arguments to append to those provided. + * @param {Array} holders The `partials` placeholder indexes. + * @params {boolean} [isCurried] Specify composing for a curried function. + * @returns {Array} Returns the new array of composed arguments. + */ + function composeArgsRight(args, partials, holders, isCurried) { + var argsIndex = -1, + argsLength = args.length, + holdersIndex = -1, + holdersLength = holders.length, + rightIndex = -1, + rightLength = partials.length, + rangeLength = nativeMax(argsLength - holdersLength, 0), + result = Array(rangeLength + rightLength), + isUncurried = !isCurried; + + while (++argsIndex < rangeLength) { + result[argsIndex] = args[argsIndex]; + } + var offset = argsIndex; + while (++rightIndex < rightLength) { + result[offset + rightIndex] = partials[rightIndex]; + } + while (++holdersIndex < holdersLength) { + if (isUncurried || argsIndex < argsLength) { + result[offset + holders[holdersIndex]] = args[argsIndex++]; + } + } + return result; + } + + /** + * Copies the values of `source` to `array`. + * + * @private + * @param {Array} source The array to copy values from. + * @param {Array} [array=[]] The array to copy values to. + * @returns {Array} Returns `array`. + */ + function copyArray(source, array) { + var index = -1, + length = source.length; + + array || (array = Array(length)); + while (++index < length) { + array[index] = source[index]; + } + return array; + } + + /** + * Copies properties of `source` to `object`. + * + * @private + * @param {Object} source The object to copy properties from. + * @param {Array} props The property identifiers to copy. + * @param {Object} [object={}] The object to copy properties to. + * @param {Function} [customizer] The function to customize copied values. + * @returns {Object} Returns `object`. + */ + function copyObject(source, props, object, customizer) { + var isNew = !object; + object || (object = {}); + + var index = -1, + length = props.length; + + while (++index < length) { + var key = props[index]; + + var newValue = customizer + ? customizer(object[key], source[key], key, object, source) + : undefined; + + if (newValue === undefined) { + newValue = source[key]; + } + if (isNew) { + baseAssignValue(object, key, newValue); + } else { + assignValue(object, key, newValue); + } + } + return object; + } + + /** + * Copies own symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbols(source, object) { + return copyObject(source, getSymbols(source), object); + } + + /** + * Copies own and inherited symbols of `source` to `object`. + * + * @private + * @param {Object} source The object to copy symbols from. + * @param {Object} [object={}] The object to copy symbols to. + * @returns {Object} Returns `object`. + */ + function copySymbolsIn(source, object) { + return copyObject(source, getSymbolsIn(source), object); + } + + /** + * Creates a function like `_.groupBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} [initializer] The accumulator object initializer. + * @returns {Function} Returns the new aggregator function. + */ + function createAggregator(setter, initializer) { + return function(collection, iteratee) { + var func = isArray(collection) ? arrayAggregator : baseAggregator, + accumulator = initializer ? initializer() : {}; + + return func(collection, setter, baseIteratee(iteratee, 2), accumulator); + }; + } + + /** + * Creates a function like `_.assign`. + * + * @private + * @param {Function} assigner The function to assign values. + * @returns {Function} Returns the new assigner function. + */ + function createAssigner(assigner) { + return baseRest(function(object, sources) { + var index = -1, + length = sources.length, + customizer = length > 1 ? sources[length - 1] : undefined, + guard = length > 2 ? sources[2] : undefined; + + customizer = (assigner.length > 3 && typeof customizer == 'function') + ? (length--, customizer) + : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + customizer = length < 3 ? undefined : customizer; + length = 1; + } + object = Object(object); + while (++index < length) { + var source = sources[index]; + if (source) { + assigner(object, source, index, customizer); + } + } + return object; }); + } + + /** + * Creates a `baseEach` or `baseEachRight` function. + * + * @private + * @param {Function} eachFunc The function to iterate over a collection. + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseEach(eachFunc, fromRight) { + return function(collection, iteratee) { + if (collection == null) { + return collection; + } + if (!isArrayLike(collection)) { + return eachFunc(collection, iteratee); + } + var length = collection.length, + index = fromRight ? length : -1, + iterable = Object(collection); + + while ((fromRight ? index-- : ++index < length)) { + if (iteratee(iterable[index], index, iterable) === false) { + break; + } + } + return collection; + }; + } + + /** + * Creates a base function for methods like `_.forIn` and `_.forOwn`. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new base function. + */ + function createBaseFor(fromRight) { + return function(object, iteratee, keysFunc) { + var index = -1, + iterable = Object(object), + props = keysFunc(object), + length = props.length; + + while (length--) { + var key = props[fromRight ? length : ++index]; + if (iteratee(iterable[key], key, iterable) === false) { + break; + } + } + return object; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the optional `this` + * binding of `thisArg`. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createBind(func, bitmask, thisArg) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return fn.apply(isBind ? thisArg : this, arguments); + } + return wrapper; + } + + /** + * Creates a function that produces an instance of `Ctor` regardless of + * whether it was invoked as part of a `new` expression or by `call` or `apply`. + * + * @private + * @param {Function} Ctor The constructor to wrap. + * @returns {Function} Returns the new wrapped function. + */ + function createCtor(Ctor) { + return function() { + // Use a `switch` statement to work with class constructors. See + // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist + // for more details. + var args = arguments; + switch (args.length) { + case 0: return new Ctor; + case 1: return new Ctor(args[0]); + case 2: return new Ctor(args[0], args[1]); + case 3: return new Ctor(args[0], args[1], args[2]); + case 4: return new Ctor(args[0], args[1], args[2], args[3]); + case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]); + case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]); + case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]); + } + var thisBinding = baseCreate(Ctor.prototype), + result = Ctor.apply(thisBinding, args); + + // Mimic the constructor's `return` behavior. + // See https://es5.github.io/#x13.2.2 for more details. + return isObject(result) ? result : thisBinding; + }; + } + + /** + * Creates a function that wraps `func` to enable currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {number} arity The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createCurry(func, bitmask, arity) { + var Ctor = createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length, + placeholder = getHolder(wrapper); + + while (index--) { + args[index] = arguments[index]; + } + var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder) + ? [] + : replaceHolders(args, placeholder); + + length -= holders.length; + if (length < arity) { + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, undefined, + args, holders, undefined, undefined, arity - length); + } + var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + return apply(fn, this, args); + } + return wrapper; + } + + /** + * Creates a `_.find` or `_.findLast` function. + * + * @private + * @param {Function} findIndexFunc The function to find the collection index. + * @returns {Function} Returns the new find function. + */ + function createFind(findIndexFunc) { + return function(collection, predicate, fromIndex) { + var iterable = Object(collection); + if (!isArrayLike(collection)) { + var iteratee = baseIteratee(predicate, 3); + collection = keys(collection); + predicate = function(key) { return iteratee(iterable[key], key, iterable); }; + } + var index = findIndexFunc(collection, predicate, fromIndex); + return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined; + }; + } + + /** + * Creates a function that wraps `func` to invoke it with optional `this` + * binding of `thisArg`, partial application, and currying. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [partialsRight] The arguments to append to those provided + * to the new function. + * @param {Array} [holdersRight] The `partialsRight` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) { + var isAry = bitmask & WRAP_ARY_FLAG, + isBind = bitmask & WRAP_BIND_FLAG, + isBindKey = bitmask & WRAP_BIND_KEY_FLAG, + isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG), + isFlip = bitmask & WRAP_FLIP_FLAG, + Ctor = isBindKey ? undefined : createCtor(func); + + function wrapper() { + var length = arguments.length, + args = Array(length), + index = length; + + while (index--) { + args[index] = arguments[index]; + } + if (isCurried) { + var placeholder = getHolder(wrapper), + holdersCount = countHolders(args, placeholder); + } + if (partials) { + args = composeArgs(args, partials, holders, isCurried); + } + if (partialsRight) { + args = composeArgsRight(args, partialsRight, holdersRight, isCurried); + } + length -= holdersCount; + if (isCurried && length < arity) { + var newHolders = replaceHolders(args, placeholder); + return createRecurry( + func, bitmask, createHybrid, wrapper.placeholder, thisArg, + args, newHolders, argPos, ary, arity - length + ); + } + var thisBinding = isBind ? thisArg : this, + fn = isBindKey ? thisBinding[func] : func; + + length = args.length; + if (argPos) { + args = reorder(args, argPos); + } else if (isFlip && length > 1) { + args.reverse(); + } + if (isAry && ary < length) { + args.length = ary; + } + if (this && this !== root && this instanceof wrapper) { + fn = Ctor || createCtor(fn); + } + return fn.apply(thisBinding, args); + } + return wrapper; + } + + /** + * Creates a function like `_.invertBy`. + * + * @private + * @param {Function} setter The function to set accumulator values. + * @param {Function} toIteratee The function to resolve iteratees. + * @returns {Function} Returns the new inverter function. + */ + function createInverter(setter, toIteratee) { + return function(object, iteratee) { + return baseInverter(object, setter, toIteratee(iteratee), {}); + }; + } + + /** + * Creates a function that wraps `func` to invoke it with the `this` binding + * of `thisArg` and `partials` prepended to the arguments it receives. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {*} thisArg The `this` binding of `func`. + * @param {Array} partials The arguments to prepend to those provided to + * the new function. + * @returns {Function} Returns the new wrapped function. + */ + function createPartial(func, bitmask, thisArg, partials) { + var isBind = bitmask & WRAP_BIND_FLAG, + Ctor = createCtor(func); + + function wrapper() { + var argsIndex = -1, + argsLength = arguments.length, + leftIndex = -1, + leftLength = partials.length, + args = Array(leftLength + argsLength), + fn = (this && this !== root && this instanceof wrapper) ? Ctor : func; + + while (++leftIndex < leftLength) { + args[leftIndex] = partials[leftIndex]; + } + while (argsLength--) { + args[leftIndex++] = arguments[++argsIndex]; + } + return apply(fn, isBind ? thisArg : this, args); + } + return wrapper; + } + + /** + * Creates a `_.range` or `_.rangeRight` function. + * + * @private + * @param {boolean} [fromRight] Specify iterating from right to left. + * @returns {Function} Returns the new range function. + */ + function createRange(fromRight) { + return function(start, end, step) { + if (step && typeof step != 'number' && isIterateeCall(start, end, step)) { + end = step = undefined; + } + // Ensure the sign of `-0` is preserved. + start = toFinite(start); + if (end === undefined) { + end = start; + start = 0; + } else { + end = toFinite(end); + } + step = step === undefined ? (start < end ? 1 : -1) : toFinite(step); + return baseRange(start, end, step, fromRight); + }; + } + + /** + * Creates a function that wraps `func` to continue currying. + * + * @private + * @param {Function} func The function to wrap. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @param {Function} wrapFunc The function to create the `func` wrapper. + * @param {*} placeholder The placeholder value. + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to prepend to those provided to + * the new function. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) { + var isCurry = bitmask & WRAP_CURRY_FLAG, + newHolders = isCurry ? holders : undefined, + newHoldersRight = isCurry ? undefined : holders, + newPartials = isCurry ? partials : undefined, + newPartialsRight = isCurry ? undefined : partials; + + bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG); + bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG); + + if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) { + bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG); + } + var newData = [ + func, bitmask, thisArg, newPartials, newHolders, newPartialsRight, + newHoldersRight, argPos, ary, arity + ]; - /** - * Creates a debounced function that delays invoking `func` until after `wait` - * milliseconds have elapsed since the last time the debounced function was - * invoked. The debounced function comes with a `cancel` method to cancel - * delayed `func` invocations and a `flush` method to immediately invoke them. - * Provide `options` to indicate whether `func` should be invoked on the - * leading and/or trailing edge of the `wait` timeout. The `func` is invoked - * with the last arguments provided to the debounced function. Subsequent - * calls to the debounced function return the result of the last `func` - * invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the debounced function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.debounce` and `_.throttle`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to debounce. - * @param {number} [wait=0] The number of milliseconds to delay. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=false] - * Specify invoking on the leading edge of the timeout. - * @param {number} [options.maxWait] - * The maximum time `func` is allowed to be delayed before it's invoked. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new debounced function. - * @example - * - * // Avoid costly calculations while the window size is in flux. - * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); - * - * // Invoke `sendMail` when clicked, debouncing subsequent calls. - * jQuery(element).on('click', _.debounce(sendMail, 300, { - * 'leading': true, - * 'trailing': false - * })); - * - * // Ensure `batchLog` is invoked once after 1 second of debounced calls. - * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); - * var source = new EventSource('/stream'); - * jQuery(source).on('message', debounced); - * - * // Cancel the trailing debounced invocation. - * jQuery(window).on('popstate', debounced.cancel); - */ - function debounce(func, wait, options) { - var lastArgs, - lastThis, - maxWait, - result, - timerId, - lastCallTime, - lastInvokeTime = 0, - leading = false, - maxing = false, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - wait = toNumber(wait) || 0; - if (isObject(options)) { - leading = !!options.leading; - maxing = 'maxWait' in options; - maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - - function invokeFunc(time) { - var args = lastArgs, - thisArg = lastThis; - - lastArgs = lastThis = undefined; - lastInvokeTime = time; - result = func.apply(thisArg, args); - return result; - } + var result = wrapFunc.apply(undefined, newData); + if (isLaziable(func)) { + setData(result, newData); + } + result.placeholder = placeholder; + return setWrapToString(result, func, bitmask); + } + + /** + * Creates a set object of `values`. + * + * @private + * @param {Array} values The values to add to the set. + * @returns {Object} Returns the new set. + */ + var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) { + return new Set(values); + }; + + /** + * Creates a function that either curries or invokes `func` with optional + * `this` binding and partially applied arguments. + * + * @private + * @param {Function|string} func The function or method name to wrap. + * @param {number} bitmask The bitmask flags. + * 1 - `_.bind` + * 2 - `_.bindKey` + * 4 - `_.curry` or `_.curryRight` of a bound function + * 8 - `_.curry` + * 16 - `_.curryRight` + * 32 - `_.partial` + * 64 - `_.partialRight` + * 128 - `_.rearg` + * 256 - `_.ary` + * 512 - `_.flip` + * @param {*} [thisArg] The `this` binding of `func`. + * @param {Array} [partials] The arguments to be partially applied. + * @param {Array} [holders] The `partials` placeholder indexes. + * @param {Array} [argPos] The argument positions of the new function. + * @param {number} [ary] The arity cap of `func`. + * @param {number} [arity] The arity of `func`. + * @returns {Function} Returns the new wrapped function. + */ + function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) { + var isBindKey = bitmask & WRAP_BIND_KEY_FLAG; + if (!isBindKey && typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + var length = partials ? partials.length : 0; + if (!length) { + bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG); + partials = holders = undefined; + } + ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0); + arity = arity === undefined ? arity : toInteger(arity); + length -= holders ? holders.length : 0; + + if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) { + var partialsRight = partials, + holdersRight = holders; + + partials = holders = undefined; + } + var data = isBindKey ? undefined : getData(func); + + var newData = [ + func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, + argPos, ary, arity + ]; - function leadingEdge(time) { - // Reset any `maxWait` timer. - lastInvokeTime = time; - // Start the timer for the trailing edge. - timerId = setTimeout(timerExpired, wait); - // Invoke the leading edge. - return leading ? invokeFunc(time) : result; + if (data) { + mergeData(newData, data); + } + func = newData[0]; + bitmask = newData[1]; + thisArg = newData[2]; + partials = newData[3]; + holders = newData[4]; + arity = newData[9] = newData[9] === undefined + ? (isBindKey ? 0 : func.length) + : nativeMax(newData[9] - length, 0); + + if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) { + bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG); + } + if (!bitmask || bitmask == WRAP_BIND_FLAG) { + var result = createBind(func, bitmask, thisArg); + } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) { + result = createCurry(func, bitmask, arity); + } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) { + result = createPartial(func, bitmask, thisArg, partials); + } else { + result = createHybrid.apply(undefined, newData); + } + var setter = data ? baseSetData : setData; + return setWrapToString(setter(result, newData), func, bitmask); + } + + /** + * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source + * objects into destination objects that are passed thru. + * + * @private + * @param {*} objValue The destination value. + * @param {*} srcValue The source value. + * @param {string} key The key of the property to merge. + * @param {Object} object The parent object of `objValue`. + * @param {Object} source The parent object of `srcValue`. + * @param {Object} [stack] Tracks traversed source values and their merged + * counterparts. + * @returns {*} Returns the value to assign. + */ + function customDefaultsMerge(objValue, srcValue, key, object, source, stack) { + if (isObject(objValue) && isObject(srcValue)) { + // Recursively merge objects and arrays (susceptible to call stack limits). + stack.set(srcValue, objValue); + baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack); + stack['delete'](srcValue); + } + return objValue; + } + + /** + * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain + * objects. + * + * @private + * @param {*} value The value to inspect. + * @param {string} key The key of the property to inspect. + * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`. + */ + function customOmitClone(value) { + return isPlainObject(value) ? undefined : value; + } + + /** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `array` and `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ + function equalArrays(array, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isPartial && othLength > arrLength)) { + return false; + } + // Assume cyclic values are equal. + var stacked = stack.get(array); + if (stacked && stack.get(other)) { + return stacked == other; + } + var index = -1, + result = true, + seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined; + + stack.set(array, other); + stack.set(other, array); + + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, arrValue, index, other, array, stack) + : customizer(arrValue, othValue, index, array, other, stack); + } + if (compared !== undefined) { + if (compared) { + continue; + } + result = false; + break; + } + // Recursively compare arrays (susceptible to call stack limits). + if (seen) { + if (!arraySome(other, function(othValue, othIndex) { + if (!cacheHas(seen, othIndex) && + (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) { + return seen.push(othIndex); + } + })) { + result = false; + break; + } + } else if (!( + arrValue === othValue || + equalFunc(arrValue, othValue, bitmask, customizer, stack) + )) { + result = false; + break; + } + } + stack['delete'](array); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseIsEqualDeep` for comparing objects of + * the same `toStringTag`. + * + * **Note:** This function only supports comparing values with tags of + * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {string} tag The `toStringTag` of the objects to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) { + switch (tag) { + case dataViewTag: + if ((object.byteLength != other.byteLength) || + (object.byteOffset != other.byteOffset)) { + return false; + } + object = object.buffer; + other = other.buffer; + + case arrayBufferTag: + if ((object.byteLength != other.byteLength) || + !equalFunc(new Uint8Array(object), new Uint8Array(other))) { + return false; } + return true; - function remainingWait(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime, - timeWaiting = wait - timeSinceLastCall; - - return maxing - ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) - : timeWaiting; - } + case boolTag: + case dateTag: + case numberTag: + // Coerce booleans to `1` or `0` and dates to milliseconds. + // Invalid dates are coerced to `NaN`. + return eq(+object, +other); - function shouldInvoke(time) { - var timeSinceLastCall = time - lastCallTime, - timeSinceLastInvoke = time - lastInvokeTime; + case errorTag: + return object.name == other.name && object.message == other.message; - // Either this is the first call, activity has stopped and we're at the - // trailing edge, the system time has gone backwards and we're treating - // it as the trailing edge, or we've hit the `maxWait` limit. - return (lastCallTime === undefined || (timeSinceLastCall >= wait) || - (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); - } + case regexpTag: + case stringTag: + // Coerce regexes to strings and treat strings, primitives and objects, + // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring + // for more details. + return object == (other + ''); - function timerExpired() { - var time = now(); - if (shouldInvoke(time)) { - return trailingEdge(time); - } - // Restart the timer. - timerId = setTimeout(timerExpired, remainingWait(time)); - } + case mapTag: + var convert = mapToArray; - function trailingEdge(time) { - timerId = undefined; + case setTag: + var isPartial = bitmask & COMPARE_PARTIAL_FLAG; + convert || (convert = setToArray); - // Only invoke if we have `lastArgs` which means `func` has been - // debounced at least once. - if (trailing && lastArgs) { - return invokeFunc(time); - } - lastArgs = lastThis = undefined; - return result; + if (object.size != other.size && !isPartial) { + return false; } - - function cancel() { - if (timerId !== undefined) { - clearTimeout(timerId); - } - lastInvokeTime = 0; - lastArgs = lastCallTime = lastThis = timerId = undefined; + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked) { + return stacked == other; } + bitmask |= COMPARE_UNORDERED_FLAG; - function flush() { - return timerId === undefined ? result : trailingEdge(now()); - } + // Recursively compare objects (susceptible to call stack limits). + stack.set(object, other); + var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack); + stack['delete'](object); + return result; - function debounced() { - var time = now(), - isInvoking = shouldInvoke(time); - - lastArgs = arguments; - lastThis = this; - lastCallTime = time; - - if (isInvoking) { - if (timerId === undefined) { - return leadingEdge(lastCallTime); - } - if (maxing) { - // Handle invocations in a tight loop. - timerId = setTimeout(timerExpired, wait); - return invokeFunc(lastCallTime); - } - } - if (timerId === undefined) { - timerId = setTimeout(timerExpired, wait); - } - return result; - } - debounced.cancel = cancel; - debounced.flush = flush; - return debounced; - } - - /** - * Defers invoking the `func` until the current call stack has cleared. Any - * additional arguments are provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to defer. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.defer(function(text) { - * console.log(text); - * }, 'deferred'); - * // => Logs 'deferred' after one millisecond. - */ - var defer = baseRest(function(func, args) { - return baseDelay(func, 1, args); + case symbolTag: + if (symbolValueOf) { + return symbolValueOf.call(object) == symbolValueOf.call(other); + } + } + return false; + } + + /** + * A specialized version of `baseIsEqualDeep` for objects with support for + * partial deep comparisons. + * + * @private + * @param {Object} object The object to compare. + * @param {Object} other The other object to compare. + * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details. + * @param {Function} customizer The function to customize comparisons. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Object} stack Tracks traversed `object` and `other` objects. + * @returns {boolean} Returns `true` if the objects are equivalent, else `false`. + */ + function equalObjects(object, other, bitmask, customizer, equalFunc, stack) { + var isPartial = bitmask & COMPARE_PARTIAL_FLAG, + objProps = getAllKeys(object), + objLength = objProps.length, + othProps = getAllKeys(other), + othLength = othProps.length; + + if (objLength != othLength && !isPartial) { + return false; + } + var index = objLength; + while (index--) { + var key = objProps[index]; + if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) { + return false; + } + } + // Assume cyclic values are equal. + var stacked = stack.get(object); + if (stacked && stack.get(other)) { + return stacked == other; + } + var result = true; + stack.set(object, other); + stack.set(other, object); + + var skipCtor = isPartial; + while (++index < objLength) { + key = objProps[index]; + var objValue = object[key], + othValue = other[key]; + + if (customizer) { + var compared = isPartial + ? customizer(othValue, objValue, key, other, object, stack) + : customizer(objValue, othValue, key, object, other, stack); + } + // Recursively compare objects (susceptible to call stack limits). + if (!(compared === undefined + ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack)) + : compared + )) { + result = false; + break; + } + skipCtor || (skipCtor = key == 'constructor'); + } + if (result && !skipCtor) { + var objCtor = object.constructor, + othCtor = other.constructor; + + // Non `Object` object instances with different constructors are not equal. + if (objCtor != othCtor && + ('constructor' in object && 'constructor' in other) && + !(typeof objCtor == 'function' && objCtor instanceof objCtor && + typeof othCtor == 'function' && othCtor instanceof othCtor)) { + result = false; + } + } + stack['delete'](object); + stack['delete'](other); + return result; + } + + /** + * A specialized version of `baseRest` which flattens the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @returns {Function} Returns the new function. + */ + function flatRest(func) { + return setToString(overRest(func, undefined, flatten), func + ''); + } + + /** + * Creates an array of own enumerable property names and symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeys(object) { + return baseGetAllKeys(object, keys, getSymbols); + } + + /** + * Creates an array of own and inherited enumerable property names and + * symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names and symbols. + */ + function getAllKeysIn(object) { + return baseGetAllKeys(object, keysIn, getSymbolsIn); + } + + /** + * Gets metadata for `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {*} Returns the metadata for `func`. + */ + var getData = !metaMap ? noop : function(func) { + return metaMap.get(func); + }; + + /** + * Gets the name of `func`. + * + * @private + * @param {Function} func The function to query. + * @returns {string} Returns the function name. + */ + function getFuncName(func) { + var result = (func.name + ''), + array = realNames[result], + length = hasOwnProperty.call(realNames, result) ? array.length : 0; + + while (length--) { + var data = array[length], + otherFunc = data.func; + if (otherFunc == null || otherFunc == func) { + return data.name; + } + } + return result; + } + + /** + * Gets the argument placeholder value for `func`. + * + * @private + * @param {Function} func The function to inspect. + * @returns {*} Returns the placeholder value. + */ + function getHolder(func) { + var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func; + return object.placeholder; + } + + /** + * Gets the data for `map`. + * + * @private + * @param {Object} map The map to query. + * @param {string} key The reference key. + * @returns {*} Returns the map data. + */ + function getMapData(map, key) { + var data = map.__data__; + return isKeyable(key) + ? data[typeof key == 'string' ? 'string' : 'hash'] + : data.map; + } + + /** + * Gets the property names, values, and compare flags of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the match data of `object`. + */ + function getMatchData(object) { + var result = keys(object), + length = result.length; + + while (length--) { + var key = result[length], + value = object[key]; + + result[length] = [key, value, isStrictComparable(value)]; + } + return result; + } + + /** + * Gets the native function at `key` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {string} key The key of the method to get. + * @returns {*} Returns the function if it's native, else `undefined`. + */ + function getNative(object, key) { + var value = getValue(object, key); + return baseIsNative(value) ? value : undefined; + } + + /** + * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the raw `toStringTag`. + */ + function getRawTag(value) { + var isOwn = hasOwnProperty.call(value, symToStringTag), + tag = value[symToStringTag]; + + try { + value[symToStringTag] = undefined; + var unmasked = true; + } catch (e) {} + + var result = nativeObjectToString.call(value); + if (unmasked) { + if (isOwn) { + value[symToStringTag] = tag; + } else { + delete value[symToStringTag]; + } + } + return result; + } + + /** + * Creates an array of the own enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbols = !nativeGetSymbols ? stubArray : function(object) { + if (object == null) { + return []; + } + object = Object(object); + return arrayFilter(nativeGetSymbols(object), function(symbol) { + return propertyIsEnumerable.call(object, symbol); }); - - /** - * Invokes `func` after `wait` milliseconds. Any additional arguments are - * provided to `func` when it's invoked. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to delay. - * @param {number} wait The number of milliseconds to delay invocation. - * @param {...*} [args] The arguments to invoke `func` with. - * @returns {number} Returns the timer id. - * @example - * - * _.delay(function(text) { - * console.log(text); - * }, 1000, 'later'); - * // => Logs 'later' after one second. - */ - var delay = baseRest(function(func, wait, args) { - return baseDelay(func, toNumber(wait) || 0, args); + }; + + /** + * Creates an array of the own and inherited enumerable symbols of `object`. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of symbols. + */ + var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) { + var result = []; + while (object) { + arrayPush(result, getSymbols(object)); + object = getPrototype(object); + } + return result; + }; + + /** + * Gets the `toStringTag` of `value`. + * + * @private + * @param {*} value The value to query. + * @returns {string} Returns the `toStringTag`. + */ + var getTag = baseGetTag; + + // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6. + if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) || + (Map && getTag(new Map) != mapTag) || + (Promise && getTag(Promise.resolve()) != promiseTag) || + (Set && getTag(new Set) != setTag) || + (WeakMap && getTag(new WeakMap) != weakMapTag)) { + getTag = function(value) { + var result = baseGetTag(value), + Ctor = result == objectTag ? value.constructor : undefined, + ctorString = Ctor ? toSource(Ctor) : ''; + + if (ctorString) { + switch (ctorString) { + case dataViewCtorString: return dataViewTag; + case mapCtorString: return mapTag; + case promiseCtorString: return promiseTag; + case setCtorString: return setTag; + case weakMapCtorString: return weakMapTag; + } + } + return result; + }; + } + + /** + * Gets the view, applying any `transforms` to the `start` and `end` positions. + * + * @private + * @param {number} start The start of the view. + * @param {number} end The end of the view. + * @param {Array} transforms The transformations to apply to the view. + * @returns {Object} Returns an object containing the `start` and `end` + * positions of the view. + */ + function getView(start, end, transforms) { + var index = -1, + length = transforms.length; + + while (++index < length) { + var data = transforms[index], + size = data.size; + + switch (data.type) { + case 'drop': start += size; break; + case 'dropRight': end -= size; break; + case 'take': end = nativeMin(end, start + size); break; + case 'takeRight': start = nativeMax(start, end - size); break; + } + } + return { 'start': start, 'end': end }; + } + + /** + * Extracts wrapper details from the `source` body comment. + * + * @private + * @param {string} source The source to inspect. + * @returns {Array} Returns the wrapper details. + */ + function getWrapDetails(source) { + var match = source.match(reWrapDetails); + return match ? match[1].split(reSplitDetails) : []; + } + + /** + * Checks if `path` exists on `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @param {Function} hasFunc The function to check properties. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + */ + function hasPath(object, path, hasFunc) { + path = castPath(path, object); + + var index = -1, + length = path.length, + result = false; + + while (++index < length) { + var key = toKey(path[index]); + if (!(result = object != null && hasFunc(object, key))) { + break; + } + object = object[key]; + } + if (result || ++index != length) { + return result; + } + length = object == null ? 0 : object.length; + return !!length && isLength(length) && isIndex(key, length) && + (isArray(object) || isArguments(object)); + } + + /** + * Initializes an array clone. + * + * @private + * @param {Array} array The array to clone. + * @returns {Array} Returns the initialized clone. + */ + function initCloneArray(array) { + var length = array.length, + result = new array.constructor(length); + + // Add properties assigned by `RegExp#exec`. + if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) { + result.index = array.index; + result.input = array.input; + } + return result; + } + + /** + * Initializes an object clone. + * + * @private + * @param {Object} object The object to clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneObject(object) { + return (typeof object.constructor == 'function' && !isPrototype(object)) + ? baseCreate(getPrototype(object)) + : {}; + } + + /** + * Initializes an object clone based on its `toStringTag`. + * + * **Note:** This function only supports cloning values with tags of + * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`. + * + * @private + * @param {Object} object The object to clone. + * @param {string} tag The `toStringTag` of the object to clone. + * @param {boolean} [isDeep] Specify a deep clone. + * @returns {Object} Returns the initialized clone. + */ + function initCloneByTag(object, tag, isDeep) { + var Ctor = object.constructor; + switch (tag) { + case arrayBufferTag: + return cloneArrayBuffer(object); + + case boolTag: + case dateTag: + return new Ctor(+object); + + case dataViewTag: + return cloneDataView(object, isDeep); + + case float32Tag: case float64Tag: + case int8Tag: case int16Tag: case int32Tag: + case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag: + return cloneTypedArray(object, isDeep); + + case mapTag: + return new Ctor; + + case numberTag: + case stringTag: + return new Ctor(object); + + case regexpTag: + return cloneRegExp(object); + + case setTag: + return new Ctor; + + case symbolTag: + return cloneSymbol(object); + } + } + + /** + * Inserts wrapper `details` in a comment at the top of the `source` body. + * + * @private + * @param {string} source The source to modify. + * @returns {Array} details The details to insert. + * @returns {string} Returns the modified source. + */ + function insertWrapDetails(source, details) { + var length = details.length; + if (!length) { + return source; + } + var lastIndex = length - 1; + details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex]; + details = details.join(length > 2 ? ', ' : ' '); + return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n'); + } + + /** + * Checks if `value` is a flattenable `arguments` object or array. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is flattenable, else `false`. + */ + function isFlattenable(value) { + return isArray(value) || isArguments(value) || + !!(spreadableSymbol && value && value[spreadableSymbol]); + } + + /** + * Checks if `value` is a valid array-like index. + * + * @private + * @param {*} value The value to check. + * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index. + * @returns {boolean} Returns `true` if `value` is a valid index, else `false`. + */ + function isIndex(value, length) { + var type = typeof value; + length = length == null ? MAX_SAFE_INTEGER : length; + + return !!length && + (type == 'number' || + (type != 'symbol' && reIsUint.test(value))) && + (value > -1 && value % 1 == 0 && value < length); + } + + /** + * Checks if the given arguments are from an iteratee call. + * + * @private + * @param {*} value The potential iteratee value argument. + * @param {*} index The potential iteratee index or key argument. + * @param {*} object The potential iteratee object argument. + * @returns {boolean} Returns `true` if the arguments are from an iteratee call, + * else `false`. + */ + function isIterateeCall(value, index, object) { + if (!isObject(object)) { + return false; + } + var type = typeof index; + if (type == 'number' + ? (isArrayLike(object) && isIndex(index, object.length)) + : (type == 'string' && index in object) + ) { + return eq(object[index], value); + } + return false; + } + + /** + * Checks if `value` is a property name and not a property path. + * + * @private + * @param {*} value The value to check. + * @param {Object} [object] The object to query keys on. + * @returns {boolean} Returns `true` if `value` is a property name, else `false`. + */ + function isKey(value, object) { + if (isArray(value)) { + return false; + } + var type = typeof value; + if (type == 'number' || type == 'symbol' || type == 'boolean' || + value == null || isSymbol(value)) { + return true; + } + return reIsPlainProp.test(value) || !reIsDeepProp.test(value) || + (object != null && value in Object(object)); + } + + /** + * Checks if `value` is suitable for use as unique object key. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is suitable, else `false`. + */ + function isKeyable(value) { + var type = typeof value; + return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean') + ? (value !== '__proto__') + : (value === null); + } + + /** + * Checks if `func` has a lazy counterpart. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` has a lazy counterpart, + * else `false`. + */ + function isLaziable(func) { + var funcName = getFuncName(func), + other = lodash[funcName]; + + if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) { + return false; + } + if (func === other) { + return true; + } + var data = getData(other); + return !!data && func === data[0]; + } + + /** + * Checks if `func` has its source masked. + * + * @private + * @param {Function} func The function to check. + * @returns {boolean} Returns `true` if `func` is masked, else `false`. + */ + function isMasked(func) { + return !!maskSrcKey && (maskSrcKey in func); + } + + /** + * Checks if `value` is likely a prototype object. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a prototype, else `false`. + */ + function isPrototype(value) { + var Ctor = value && value.constructor, + proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto; + + return value === proto; + } + + /** + * Checks if `value` is suitable for strict equality comparisons, i.e. `===`. + * + * @private + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` if suitable for strict + * equality comparisons, else `false`. + */ + function isStrictComparable(value) { + return value === value && !isObject(value); + } + + /** + * A specialized version of `matchesProperty` for source values suitable + * for strict equality comparisons, i.e. `===`. + * + * @private + * @param {string} key The key of the property to get. + * @param {*} srcValue The value to match. + * @returns {Function} Returns the new spec function. + */ + function matchesStrictComparable(key, srcValue) { + return function(object) { + if (object == null) { + return false; + } + return object[key] === srcValue && + (srcValue !== undefined || (key in Object(object))); + }; + } + + /** + * A specialized version of `_.memoize` which clears the memoized function's + * cache when it exceeds `MAX_MEMOIZE_SIZE`. + * + * @private + * @param {Function} func The function to have its output memoized. + * @returns {Function} Returns the new memoized function. + */ + function memoizeCapped(func) { + var result = memoize(func, function(key) { + if (cache.size === MAX_MEMOIZE_SIZE) { + cache.clear(); + } + return key; }); - /** - * Creates a function that memoizes the result of `func`. If `resolver` is - * provided, it determines the cache key for storing the result based on the - * arguments provided to the memoized function. By default, the first argument - * provided to the memoized function is used as the map cache key. The `func` - * is invoked with the `this` binding of the memoized function. - * - * **Note:** The cache is exposed as the `cache` property on the memoized - * function. Its creation may be customized by replacing the `_.memoize.Cache` - * constructor with one whose instances implement the - * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) - * method interface of `clear`, `delete`, `get`, `has`, and `set`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to have its output memoized. - * @param {Function} [resolver] The function to resolve the cache key. - * @returns {Function} Returns the new memoized function. - * @example - * - * var object = { 'a': 1, 'b': 2 }; - * var other = { 'c': 3, 'd': 4 }; - * - * var values = _.memoize(_.values); - * values(object); - * // => [1, 2] - * - * values(other); - * // => [3, 4] - * - * object.a = 2; - * values(object); - * // => [1, 2] - * - * // Modify the result cache. - * values.cache.set(object, ['a', 'b']); - * values(object); - * // => ['a', 'b'] - * - * // Replace `_.memoize.Cache`. - * _.memoize.Cache = WeakMap; - */ - function memoize(func, resolver) { - if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { - throw new TypeError(FUNC_ERROR_TEXT); - } - var memoized = function() { - var args = arguments, - key = resolver ? resolver.apply(this, args) : args[0], - cache = memoized.cache; - - if (cache.has(key)) { - return cache.get(key); - } - var result = func.apply(this, args); - memoized.cache = cache.set(key, result) || cache; - return result; - }; - memoized.cache = new (memoize.Cache || MapCache); - return memoized; - } - - // Expose `MapCache`. - memoize.Cache = MapCache; - - /** - * Creates a function that negates the result of the predicate `func`. The - * `func` predicate is invoked with the `this` binding and arguments of the - * created function. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Function - * @param {Function} predicate The predicate to negate. - * @returns {Function} Returns the new negated function. - * @example - * - * function isEven(n) { - * return n % 2 == 0; - * } - * - * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); - * // => [1, 3, 5] - */ - function negate(predicate) { - if (typeof predicate != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - return function() { - var args = arguments; - switch (args.length) { - case 0: return !predicate.call(this); - case 1: return !predicate.call(this, args[0]); - case 2: return !predicate.call(this, args[0], args[1]); - case 3: return !predicate.call(this, args[0], args[1], args[2]); - } - return !predicate.apply(this, args); - }; - } - - /** - * Creates a function that is restricted to invoking `func` once. Repeat calls - * to the function return the value of the first invocation. The `func` is - * invoked with the `this` binding and arguments of the created function. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to restrict. - * @returns {Function} Returns the new restricted function. - * @example - * - * var initialize = _.once(createApplication); - * initialize(); - * initialize(); - * // => `createApplication` is invoked once - */ - function once(func) { - return before(2, func); - } - - /** - * Creates a function that invokes `func` with the `this` binding of the - * created function and arguments from `start` and beyond provided as - * an array. - * - * **Note:** This method is based on the - * [rest parameter](https://mdn.io/rest_parameters). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Function - * @param {Function} func The function to apply a rest parameter to. - * @param {number} [start=func.length-1] The start position of the rest parameter. - * @returns {Function} Returns the new function. - * @example - * - * var say = _.rest(function(what, names) { - * return what + ' ' + _.initial(names).join(', ') + - * (_.size(names) > 1 ? ', & ' : '') + _.last(names); - * }); - * - * say('hello', 'fred', 'barney', 'pebbles'); - * // => 'hello fred, barney, & pebbles' - */ - function rest(func, start) { - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - start = start === undefined ? start : toInteger(start); - return baseRest(func, start); - } - - /** - * Creates a throttled function that only invokes `func` at most once per - * every `wait` milliseconds. The throttled function comes with a `cancel` - * method to cancel delayed `func` invocations and a `flush` method to - * immediately invoke them. Provide `options` to indicate whether `func` - * should be invoked on the leading and/or trailing edge of the `wait` - * timeout. The `func` is invoked with the last arguments provided to the - * throttled function. Subsequent calls to the throttled function return the - * result of the last `func` invocation. - * - * **Note:** If `leading` and `trailing` options are `true`, `func` is - * invoked on the trailing edge of the timeout only if the throttled function - * is invoked more than once during the `wait` timeout. - * - * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred - * until to the next tick, similar to `setTimeout` with a timeout of `0`. - * - * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) - * for details over the differences between `_.throttle` and `_.debounce`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Function - * @param {Function} func The function to throttle. - * @param {number} [wait=0] The number of milliseconds to throttle invocations to. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.leading=true] - * Specify invoking on the leading edge of the timeout. - * @param {boolean} [options.trailing=true] - * Specify invoking on the trailing edge of the timeout. - * @returns {Function} Returns the new throttled function. - * @example - * - * // Avoid excessively updating the position while scrolling. - * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); - * - * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. - * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); - * jQuery(element).on('click', throttled); - * - * // Cancel the trailing throttled invocation. - * jQuery(window).on('popstate', throttled.cancel); - */ - function throttle(func, wait, options) { - var leading = true, - trailing = true; - - if (typeof func != 'function') { - throw new TypeError(FUNC_ERROR_TEXT); - } - if (isObject(options)) { - leading = 'leading' in options ? !!options.leading : leading; - trailing = 'trailing' in options ? !!options.trailing : trailing; - } - return debounce(func, wait, { - 'leading': leading, - 'maxWait': wait, - 'trailing': trailing - }); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a shallow clone of `value`. - * - * **Note:** This method is loosely based on the - * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) - * and supports cloning arrays, array buffers, booleans, date objects, maps, - * numbers, `Object` objects, regexes, sets, strings, symbols, and typed - * arrays. The own enumerable properties of `arguments` objects are cloned - * as plain objects. An empty object is returned for uncloneable values such - * as error objects, functions, DOM nodes, and WeakMaps. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to clone. - * @returns {*} Returns the cloned value. - * @see _.cloneDeep - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var shallow = _.clone(objects); - * console.log(shallow[0] === objects[0]); - * // => true - */ - function clone(value) { - return baseClone(value, CLONE_SYMBOLS_FLAG); - } - - /** - * This method is like `_.clone` except that it recursively clones `value`. - * - * @static - * @memberOf _ - * @since 1.0.0 - * @category Lang - * @param {*} value The value to recursively clone. - * @returns {*} Returns the deep cloned value. - * @see _.clone - * @example - * - * var objects = [{ 'a': 1 }, { 'b': 2 }]; - * - * var deep = _.cloneDeep(objects); - * console.log(deep[0] === objects[0]); - * // => false - */ - function cloneDeep(value) { - return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); - } - - /** - * Performs a - * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) - * comparison between two values to determine if they are equivalent. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.eq(object, object); - * // => true - * - * _.eq(object, other); - * // => false - * - * _.eq('a', 'a'); - * // => true - * - * _.eq('a', Object('a')); - * // => false - * - * _.eq(NaN, NaN); - * // => true - */ - function eq(value, other) { - return value === other || (value !== value && other !== other); - } - - /** - * Checks if `value` is likely an `arguments` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an `arguments` object, - * else `false`. - * @example - * - * _.isArguments(function() { return arguments; }()); - * // => true - * - * _.isArguments([1, 2, 3]); - * // => false - */ - var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { - return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && - !propertyIsEnumerable.call(value, 'callee'); + var cache = result.cache; + return result; + } + + /** + * Merges the function metadata of `source` into `data`. + * + * Merging metadata reduces the number of wrappers used to invoke a function. + * This is possible because methods like `_.bind`, `_.curry`, and `_.partial` + * may be applied regardless of execution order. Methods like `_.ary` and + * `_.rearg` modify function arguments, making the order in which they are + * executed important, preventing the merging of metadata. However, we make + * an exception for a safe combined case where curried functions have `_.ary` + * and or `_.rearg` applied. + * + * @private + * @param {Array} data The destination metadata. + * @param {Array} source The source metadata. + * @returns {Array} Returns `data`. + */ + function mergeData(data, source) { + var bitmask = data[1], + srcBitmask = source[1], + newBitmask = bitmask | srcBitmask, + isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG); + + var isCombo = + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) || + ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) || + ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG)); + + // Exit early if metadata can't be merged. + if (!(isCommon || isCombo)) { + return data; + } + // Use source `thisArg` if available. + if (srcBitmask & WRAP_BIND_FLAG) { + data[2] = source[2]; + // Set when currying a bound function. + newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG; + } + // Compose partial arguments. + var value = source[3]; + if (value) { + var partials = data[3]; + data[3] = partials ? composeArgs(partials, value, source[4]) : value; + data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4]; + } + // Compose partial right arguments. + value = source[5]; + if (value) { + partials = data[5]; + data[5] = partials ? composeArgsRight(partials, value, source[6]) : value; + data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6]; + } + // Use source `argPos` if available. + value = source[7]; + if (value) { + data[7] = value; + } + // Use source `ary` if it's smaller. + if (srcBitmask & WRAP_ARY_FLAG) { + data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]); + } + // Use source `arity` if one is not provided. + if (data[9] == null) { + data[9] = source[9]; + } + // Use source `func` and merge bitmasks. + data[0] = source[0]; + data[1] = newBitmask; + + return data; + } + + /** + * This function is like + * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * except that it includes inherited enumerable properties. + * + * @private + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + */ + function nativeKeysIn(object) { + var result = []; + if (object != null) { + for (var key in Object(object)) { + result.push(key); + } + } + return result; + } + + /** + * Converts `value` to a string using `Object.prototype.toString`. + * + * @private + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + */ + function objectToString(value) { + return nativeObjectToString.call(value); + } + + /** + * A specialized version of `baseRest` which transforms the rest array. + * + * @private + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @param {Function} transform The rest array transform. + * @returns {Function} Returns the new function. + */ + function overRest(func, start, transform) { + start = nativeMax(start === undefined ? (func.length - 1) : start, 0); + return function() { + var args = arguments, + index = -1, + length = nativeMax(args.length - start, 0), + array = Array(length); + + while (++index < length) { + array[index] = args[start + index]; + } + index = -1; + var otherArgs = Array(start + 1); + while (++index < start) { + otherArgs[index] = args[index]; + } + otherArgs[start] = transform(array); + return apply(func, this, otherArgs); }; - - /** - * Checks if `value` is classified as an `Array` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array, else `false`. - * @example - * - * _.isArray([1, 2, 3]); - * // => true - * - * _.isArray(document.body.children); - * // => false - * - * _.isArray('abc'); - * // => false - * - * _.isArray(_.noop); - * // => false - */ - var isArray = Array.isArray; - - /** - * Checks if `value` is array-like. A value is considered array-like if it's - * not a function and has a `value.length` that's an integer greater than or - * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is array-like, else `false`. - * @example - * - * _.isArrayLike([1, 2, 3]); - * // => true - * - * _.isArrayLike(document.body.children); - * // => true - * - * _.isArrayLike('abc'); - * // => true - * - * _.isArrayLike(_.noop); - * // => false - */ - function isArrayLike(value) { - return value != null && isLength(value.length) && !isFunction(value); - } - - /** - * This method is like `_.isArrayLike` except that it also checks if `value` - * is an object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an array-like object, - * else `false`. - * @example - * - * _.isArrayLikeObject([1, 2, 3]); - * // => true - * - * _.isArrayLikeObject(document.body.children); - * // => true - * - * _.isArrayLikeObject('abc'); - * // => false - * - * _.isArrayLikeObject(_.noop); - * // => false - */ - function isArrayLikeObject(value) { - return isObjectLike(value) && isArrayLike(value); - } - - /** - * Checks if `value` is classified as a boolean primitive or object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. - * @example - * - * _.isBoolean(false); - * // => true - * - * _.isBoolean(null); - * // => false - */ - function isBoolean(value) { - return value === true || value === false || - (isObjectLike(value) && baseGetTag(value) == boolTag); - } - - /** - * Checks if `value` is a buffer. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. - * @example - * - * _.isBuffer(new Buffer(2)); - * // => true - * - * _.isBuffer(new Uint8Array(2)); - * // => false - */ - var isBuffer = nativeIsBuffer || stubFalse; - - /** - * Checks if `value` is classified as a `Date` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a date object, else `false`. - * @example - * - * _.isDate(new Date); - * // => true - * - * _.isDate('Mon April 23 2012'); - * // => false - */ - var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; - - /** - * Checks if `value` is an empty object, collection, map, or set. - * - * Objects are considered empty if they have no own enumerable string keyed - * properties. - * - * Array-like values such as `arguments` objects, arrays, buffers, strings, or - * jQuery-like collections are considered empty if they have a `length` of `0`. - * Similarly, maps and sets are considered empty if they have a `size` of `0`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is empty, else `false`. - * @example - * - * _.isEmpty(null); - * // => true - * - * _.isEmpty(true); - * // => true - * - * _.isEmpty(1); - * // => true - * - * _.isEmpty([1, 2, 3]); - * // => false - * - * _.isEmpty({ 'a': 1 }); - * // => false - */ - function isEmpty(value) { - if (value == null) { - return true; - } - if (isArrayLike(value) && - (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || - isBuffer(value) || isTypedArray(value) || isArguments(value))) { - return !value.length; - } - var tag = getTag(value); - if (tag == mapTag || tag == setTag) { - return !value.size; - } - if (isPrototype(value)) { - return !baseKeys(value).length; - } - for (var key in value) { - if (hasOwnProperty.call(value, key)) { - return false; - } - } - return true; - } - - /** - * Performs a deep comparison between two values to determine if they are - * equivalent. - * - * **Note:** This method supports comparing arrays, array buffers, booleans, - * date objects, error objects, maps, numbers, `Object` objects, regexes, - * sets, strings, symbols, and typed arrays. `Object` objects are compared - * by their own, not inherited, enumerable properties. Functions and DOM - * nodes are compared by strict equality, i.e. `===`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to compare. - * @param {*} other The other value to compare. - * @returns {boolean} Returns `true` if the values are equivalent, else `false`. - * @example - * - * var object = { 'a': 1 }; - * var other = { 'a': 1 }; - * - * _.isEqual(object, other); - * // => true - * - * object === other; - * // => false - */ - function isEqual(value, other) { - return baseIsEqual(value, other); - } - - /** - * Checks if `value` is a finite primitive number. - * - * **Note:** This method is based on - * [`Number.isFinite`](https://mdn.io/Number/isFinite). - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. - * @example - * - * _.isFinite(3); - * // => true - * - * _.isFinite(Number.MIN_VALUE); - * // => true - * - * _.isFinite(Infinity); - * // => false - * - * _.isFinite('3'); - * // => false - */ - function isFinite(value) { - return typeof value == 'number' && nativeIsFinite(value); - } - - /** - * Checks if `value` is classified as a `Function` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a function, else `false`. - * @example - * - * _.isFunction(_); - * // => true - * - * _.isFunction(/abc/); - * // => false - */ - function isFunction(value) { - if (!isObject(value)) { - return false; - } - // The use of `Object#toString` avoids issues with the `typeof` operator - // in Safari 9 which returns 'object' for typed arrays and other constructors. - var tag = baseGetTag(value); - return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; - } - - /** - * Checks if `value` is a valid array-like length. - * - * **Note:** This method is loosely based on - * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. - * @example - * - * _.isLength(3); - * // => true - * - * _.isLength(Number.MIN_VALUE); - * // => false - * - * _.isLength(Infinity); - * // => false - * - * _.isLength('3'); - * // => false - */ - function isLength(value) { - return typeof value == 'number' && - value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; - } - - /** - * Checks if `value` is the - * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) - * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is an object, else `false`. - * @example - * - * _.isObject({}); - * // => true - * - * _.isObject([1, 2, 3]); - * // => true - * - * _.isObject(_.noop); - * // => true - * - * _.isObject(null); - * // => false - */ - function isObject(value) { - var type = typeof value; - return value != null && (type == 'object' || type == 'function'); - } - - /** - * Checks if `value` is object-like. A value is object-like if it's not `null` - * and has a `typeof` result of "object". - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is object-like, else `false`. - * @example - * - * _.isObjectLike({}); - * // => true - * - * _.isObjectLike([1, 2, 3]); - * // => true - * - * _.isObjectLike(_.noop); - * // => false - * - * _.isObjectLike(null); - * // => false - */ - function isObjectLike(value) { - return value != null && typeof value == 'object'; - } - - /** - * Checks if `value` is classified as a `Map` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a map, else `false`. - * @example - * - * _.isMap(new Map); - * // => true - * - * _.isMap(new WeakMap); - * // => false - */ - var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; - - /** - * Checks if `value` is `NaN`. - * - * **Note:** This method is based on - * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as - * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for - * `undefined` and other non-number values. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. - * @example - * - * _.isNaN(NaN); - * // => true - * - * _.isNaN(new Number(NaN)); - * // => true - * - * isNaN(undefined); - * // => true - * - * _.isNaN(undefined); - * // => false - */ - function isNaN(value) { - // An `NaN` primitive is the only value that is not equal to itself. - // Perform the `toStringTag` check first to avoid errors with some - // ActiveX objects in IE. - return isNumber(value) && value != +value; - } - - /** - * Checks if `value` is `null`. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `null`, else `false`. - * @example - * - * _.isNull(null); - * // => true - * - * _.isNull(void 0); - * // => false - */ - function isNull(value) { - return value === null; - } - - /** - * Checks if `value` is classified as a `Number` primitive or object. - * - * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are - * classified as numbers, use the `_.isFinite` method. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a number, else `false`. - * @example - * - * _.isNumber(3); - * // => true - * - * _.isNumber(Number.MIN_VALUE); - * // => true - * - * _.isNumber(Infinity); - * // => true - * - * _.isNumber('3'); - * // => false - */ - function isNumber(value) { - return typeof value == 'number' || - (isObjectLike(value) && baseGetTag(value) == numberTag); - } - - /** - * Checks if `value` is a plain object, that is, an object created by the - * `Object` constructor or one with a `[[Prototype]]` of `null`. - * - * @static - * @memberOf _ - * @since 0.8.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * _.isPlainObject(new Foo); - * // => false - * - * _.isPlainObject([1, 2, 3]); - * // => false - * - * _.isPlainObject({ 'x': 0, 'y': 0 }); - * // => true - * - * _.isPlainObject(Object.create(null)); - * // => true - */ - function isPlainObject(value) { - if (!isObjectLike(value) || baseGetTag(value) != objectTag) { - return false; - } - var proto = getPrototype(value); - if (proto === null) { - return true; - } - var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; - return typeof Ctor == 'function' && Ctor instanceof Ctor && - funcToString.call(Ctor) == objectCtorString; - } - - /** - * Checks if `value` is classified as a `RegExp` object. - * - * @static - * @memberOf _ - * @since 0.1.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. - * @example - * - * _.isRegExp(/abc/); - * // => true - * - * _.isRegExp('/abc/'); - * // => false - */ - var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; - - /** - * Checks if `value` is classified as a `Set` object. - * - * @static - * @memberOf _ - * @since 4.3.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a set, else `false`. - * @example - * - * _.isSet(new Set); - * // => true - * - * _.isSet(new WeakSet); - * // => false - */ - var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; - - /** - * Checks if `value` is classified as a `String` primitive or object. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a string, else `false`. - * @example - * - * _.isString('abc'); - * // => true - * - * _.isString(1); - * // => false - */ - function isString(value) { - return typeof value == 'string' || - (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); - } - - /** - * Checks if `value` is classified as a `Symbol` primitive or object. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. - * @example - * - * _.isSymbol(Symbol.iterator); - * // => true - * - * _.isSymbol('abc'); - * // => false - */ - function isSymbol(value) { - return typeof value == 'symbol' || - (isObjectLike(value) && baseGetTag(value) == symbolTag); - } - - /** - * Checks if `value` is classified as a typed array. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. - * @example - * - * _.isTypedArray(new Uint8Array); - * // => true - * - * _.isTypedArray([]); - * // => false - */ - var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; - - /** - * Checks if `value` is `undefined`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to check. - * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. - * @example - * - * _.isUndefined(void 0); - * // => true - * - * _.isUndefined(null); - * // => false - */ - function isUndefined(value) { - return value === undefined; - } - - /** - * Converts `value` to an array. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Lang - * @param {*} value The value to convert. - * @returns {Array} Returns the converted array. - * @example - * - * _.toArray({ 'a': 1, 'b': 2 }); - * // => [1, 2] - * - * _.toArray('abc'); - * // => ['a', 'b', 'c'] - * - * _.toArray(1); - * // => [] - * - * _.toArray(null); - * // => [] - */ - function toArray(value) { - if (!value) { - return []; - } - if (isArrayLike(value)) { - return isString(value) ? stringToArray(value) : copyArray(value); - } - if (symIterator && value[symIterator]) { - return iteratorToArray(value[symIterator]()); - } - var tag = getTag(value), - func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); - - return func(value); - } - - /** - * Converts `value` to a finite number. - * - * @static - * @memberOf _ - * @since 4.12.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted number. - * @example - * - * _.toFinite(3.2); - * // => 3.2 - * - * _.toFinite(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toFinite(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toFinite('3.2'); - * // => 3.2 - */ - function toFinite(value) { - if (!value) { - return value === 0 ? value : 0; - } - value = toNumber(value); - if (value === INFINITY || value === -INFINITY) { - var sign = (value < 0 ? -1 : 1); - return sign * MAX_INTEGER; - } - return value === value ? value : 0; - } - - /** - * Converts `value` to an integer. - * - * **Note:** This method is loosely based on - * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {number} Returns the converted integer. - * @example - * - * _.toInteger(3.2); - * // => 3 - * - * _.toInteger(Number.MIN_VALUE); - * // => 0 - * - * _.toInteger(Infinity); - * // => 1.7976931348623157e+308 - * - * _.toInteger('3.2'); - * // => 3 - */ - function toInteger(value) { - var result = toFinite(value), - remainder = result % 1; - - return result === result ? (remainder ? result - remainder : result) : 0; - } - - /** - * Converts `value` to a number. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to process. - * @returns {number} Returns the number. - * @example - * - * _.toNumber(3.2); - * // => 3.2 - * - * _.toNumber(Number.MIN_VALUE); - * // => 5e-324 - * - * _.toNumber(Infinity); - * // => Infinity - * - * _.toNumber('3.2'); - * // => 3.2 - */ - function toNumber(value) { - if (typeof value == 'number') { - return value; - } - if (isSymbol(value)) { - return NAN; - } - if (isObject(value)) { - var other = typeof value.valueOf == 'function' ? value.valueOf() : value; - value = isObject(other) ? (other + '') : other; - } - if (typeof value != 'string') { - return value === 0 ? value : +value; - } - value = value.replace(reTrim, ''); - var isBinary = reIsBinary.test(value); - return (isBinary || reIsOctal.test(value)) - ? freeParseInt(value.slice(2), isBinary ? 2 : 8) - : (reIsBadHex.test(value) ? NAN : +value); - } - - /** - * Converts `value` to a plain object flattening inherited enumerable string - * keyed properties of `value` to own properties of the plain object. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {Object} Returns the converted plain object. - * @example - * - * function Foo() { - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.assign({ 'a': 1 }, new Foo); - * // => { 'a': 1, 'b': 2 } - * - * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); - * // => { 'a': 1, 'b': 2, 'c': 3 } - */ - function toPlainObject(value) { - return copyObject(value, keysIn(value)); - } - - /** - * Converts `value` to a string. An empty string is returned for `null` - * and `undefined` values. The sign of `-0` is preserved. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Lang - * @param {*} value The value to convert. - * @returns {string} Returns the converted string. - * @example - * - * _.toString(null); - * // => '' - * - * _.toString(-0); - * // => '-0' - * - * _.toString([1, 2, 3]); - * // => '1,2,3' - */ - function toString(value) { - return value == null ? '' : baseToString(value); - } - - /*------------------------------------------------------------------------*/ - - /** - * This method is like `_.assign` except that it iterates over own and - * inherited source properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @alias extend - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.assign - * @example - * - * function Foo() { - * this.a = 1; - * } - * - * function Bar() { - * this.c = 3; - * } - * - * Foo.prototype.b = 2; - * Bar.prototype.d = 4; - * - * _.assignIn({ 'a': 0 }, new Foo, new Bar); - * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } - */ - var assignIn = createAssigner(function(object, source) { - copyObject(source, keysIn(source), object); + } + + /** + * Gets the parent value at `path` of `object`. + * + * @private + * @param {Object} object The object to query. + * @param {Array} path The path to get the parent value of. + * @returns {*} Returns the parent value. + */ + function parent(object, path) { + return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1)); + } + + /** + * Reorder `array` according to the specified indexes where the element at + * the first index is assigned as the first element, the element at + * the second index is assigned as the second element, and so on. + * + * @private + * @param {Array} array The array to reorder. + * @param {Array} indexes The arranged array indexes. + * @returns {Array} Returns `array`. + */ + function reorder(array, indexes) { + var arrLength = array.length, + length = nativeMin(indexes.length, arrLength), + oldArray = copyArray(array); + + while (length--) { + var index = indexes[length]; + array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined; + } + return array; + } + + /** + * Sets metadata for `func`. + * + * **Note:** If this function becomes hot, i.e. is invoked a lot in a short + * period of time, it will trip its breaker and transition to an identity + * function to avoid garbage collection pauses in V8. See + * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070) + * for more details. + * + * @private + * @param {Function} func The function to associate metadata with. + * @param {*} data The metadata. + * @returns {Function} Returns `func`. + */ + var setData = shortOut(baseSetData); + + /** + * Sets the `toString` method of `func` to return `string`. + * + * @private + * @param {Function} func The function to modify. + * @param {Function} string The `toString` result. + * @returns {Function} Returns `func`. + */ + var setToString = shortOut(baseSetToString); + + /** + * Sets the `toString` method of `wrapper` to mimic the source of `reference` + * with wrapper details in a comment at the top of the source body. + * + * @private + * @param {Function} wrapper The function to modify. + * @param {Function} reference The reference function. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Function} Returns `wrapper`. + */ + function setWrapToString(wrapper, reference, bitmask) { + var source = (reference + ''); + return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask))); + } + + /** + * Creates a function that'll short out and invoke `identity` instead + * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN` + * milliseconds. + * + * @private + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new shortable function. + */ + function shortOut(func) { + var count = 0, + lastCalled = 0; + + return function() { + var stamp = nativeNow(), + remaining = HOT_SPAN - (stamp - lastCalled); + + lastCalled = stamp; + if (remaining > 0) { + if (++count >= HOT_COUNT) { + return arguments[0]; + } + } else { + count = 0; + } + return func.apply(undefined, arguments); + }; + } + + /** + * Converts `string` to a property path array. + * + * @private + * @param {string} string The string to convert. + * @returns {Array} Returns the property path array. + */ + var stringToPath = memoizeCapped(function(string) { + var result = []; + if (string.charCodeAt(0) === 46 /* . */) { + result.push(''); + } + string.replace(rePropName, function(match, number, quote, subString) { + result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match)); }); - - /** - * Creates an object that inherits from the `prototype` object. If a - * `properties` object is given, its own enumerable string keyed properties - * are assigned to the created object. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Object - * @param {Object} prototype The object to inherit from. - * @param {Object} [properties] The properties to assign to the object. - * @returns {Object} Returns the new object. - * @example - * - * function Shape() { - * this.x = 0; - * this.y = 0; - * } - * - * function Circle() { - * Shape.call(this); - * } - * - * Circle.prototype = _.create(Shape.prototype, { - * 'constructor': Circle - * }); - * - * var circle = new Circle; - * circle instanceof Circle; - * // => true - * - * circle instanceof Shape; - * // => true - */ - function create(prototype, properties) { - var result = baseCreate(prototype); - return properties == null ? result : baseAssign(result, properties); - } - - /** - * Assigns own and inherited enumerable string keyed properties of source - * objects to the destination object for all destination properties that - * resolve to `undefined`. Source objects are applied from left to right. - * Once a property is set, additional values of the same property are ignored. - * - * **Note:** This method mutates `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaultsDeep - * @example - * - * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); - * // => { 'a': 1, 'b': 2 } - */ - var defaults = baseRest(function(object, sources) { - object = Object(object); - - var index = -1; - var length = sources.length; - var guard = length > 2 ? sources[2] : undefined; - - if (guard && isIterateeCall(sources[0], sources[1], guard)) { - length = 1; - } - - while (++index < length) { - var source = sources[index]; - var props = keysIn(source); - var propsIndex = -1; - var propsLength = props.length; - - while (++propsIndex < propsLength) { - var key = props[propsIndex]; - var value = object[key]; - - if (value === undefined || - (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { - object[key] = source[key]; - } - } - } - - return object; + return result; + }); + + /** + * Converts `value` to a string key if it's not a string or symbol. + * + * @private + * @param {*} value The value to inspect. + * @returns {string|symbol} Returns the key. + */ + function toKey(value) { + if (typeof value == 'string' || isSymbol(value)) { + return value; + } + var result = (value + ''); + return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; + } + + /** + * Converts `func` to its source code. + * + * @private + * @param {Function} func The function to convert. + * @returns {string} Returns the source code. + */ + function toSource(func) { + if (func != null) { + try { + return funcToString.call(func); + } catch (e) {} + try { + return (func + ''); + } catch (e) {} + } + return ''; + } + + /** + * Updates wrapper `details` based on `bitmask` flags. + * + * @private + * @returns {Array} details The details to modify. + * @param {number} bitmask The bitmask flags. See `createWrap` for more details. + * @returns {Array} Returns `details`. + */ + function updateWrapDetails(details, bitmask) { + arrayEach(wrapFlags, function(pair) { + var value = '_.' + pair[0]; + if ((bitmask & pair[1]) && !arrayIncludes(details, value)) { + details.push(value); + } }); - - /** - * This method is like `_.defaults` except that it recursively assigns - * default properties. - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 3.10.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} [sources] The source objects. - * @returns {Object} Returns `object`. - * @see _.defaults - * @example - * - * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); - * // => { 'a': { 'b': 2, 'c': 3 } } - */ - var defaultsDeep = baseRest(function(args) { - args.push(undefined, customDefaultsMerge); - return apply(mergeWith, undefined, args); + return details.sort(); + } + + /** + * Creates a clone of `wrapper`. + * + * @private + * @param {Object} wrapper The wrapper to clone. + * @returns {Object} Returns the cloned wrapper. + */ + function wrapperClone(wrapper) { + if (wrapper instanceof LazyWrapper) { + return wrapper.clone(); + } + var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__); + result.__actions__ = copyArray(wrapper.__actions__); + result.__index__ = wrapper.__index__; + result.__values__ = wrapper.__values__; + return result; + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an array with all falsey values removed. The values `false`, `null`, + * `0`, `""`, `undefined`, and `NaN` are falsey. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to compact. + * @returns {Array} Returns the new array of filtered values. + * @example + * + * _.compact([0, 1, false, 2, '', 3]); + * // => [1, 2, 3] + */ + function compact(array) { + var index = -1, + length = array == null ? 0 : array.length, + resIndex = 0, + result = []; + + while (++index < length) { + var value = array[index]; + if (value) { + result[resIndex++] = value; + } + } + return result; + } + + /** + * Creates a new array concatenating `array` with any additional arrays + * and/or values. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to concatenate. + * @param {...*} [values] The values to concatenate. + * @returns {Array} Returns the new concatenated array. + * @example + * + * var array = [1]; + * var other = _.concat(array, 2, [3], [[4]]); + * + * console.log(other); + * // => [1, 2, 3, [4]] + * + * console.log(array); + * // => [1] + */ + function concat() { + var length = arguments.length; + if (!length) { + return []; + } + var args = Array(length - 1), + array = arguments[0], + index = length; + + while (index--) { + args[index - 1] = arguments[index]; + } + return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1)); + } + + /** + * Creates an array of `array` values not included in the other given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * **Note:** Unlike `_.pullAll`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...Array} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.without, _.xor + * @example + * + * _.difference([2, 1], [2, 3]); + * // => [1] + */ + var difference = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true)) + : []; + }); + + /** + * Creates a slice of `array` with `n` elements dropped from the beginning. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to drop. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.drop([1, 2, 3]); + * // => [2, 3] + * + * _.drop([1, 2, 3], 2); + * // => [3] + * + * _.drop([1, 2, 3], 5); + * // => [] + * + * _.drop([1, 2, 3], 0); + * // => [1, 2, 3] + */ + function drop(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * This method is like `_.find` except that it returns the index of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': true } + * ]; + * + * _.findIndex(users, function(o) { return o.user == 'barney'; }); + * // => 0 + * + * // The `_.matches` iteratee shorthand. + * _.findIndex(users, { 'user': 'fred', 'active': false }); + * // => 1 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findIndex(users, ['active', false]); + * // => 0 + * + * // The `_.property` iteratee shorthand. + * _.findIndex(users, 'active'); + * // => 2 + */ + function findIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index); + } + + /** + * This method is like `_.findIndex` except that it iterates over elements + * of `collection` from right to left. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=array.length-1] The index to search from. + * @returns {number} Returns the index of the found element, else `-1`. + * @example + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false }, + * { 'user': 'pebbles', 'active': false } + * ]; + * + * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; }); + * // => 2 + * + * // The `_.matches` iteratee shorthand. + * _.findLastIndex(users, { 'user': 'barney', 'active': true }); + * // => 0 + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastIndex(users, ['active', false]); + * // => 2 + * + * // The `_.property` iteratee shorthand. + * _.findLastIndex(users, 'active'); + * // => 0 + */ + function findLastIndex(array, predicate, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = length - 1; + if (fromIndex !== undefined) { + index = toInteger(fromIndex); + index = fromIndex < 0 + ? nativeMax(length + index, 0) + : nativeMin(index, length - 1); + } + return baseFindIndex(array, baseIteratee(predicate, 3), index, true); + } + + /** + * Flattens `array` a single level deep. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flatten([1, [2, [3, [4]], 5]]); + * // => [1, 2, [3, [4]], 5] + */ + function flatten(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, 1) : []; + } + + /** + * Recursively flattens `array`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to flatten. + * @returns {Array} Returns the new flattened array. + * @example + * + * _.flattenDeep([1, [2, [3, [4]], 5]]); + * // => [1, 2, 3, 4, 5] + */ + function flattenDeep(array) { + var length = array == null ? 0 : array.length; + return length ? baseFlatten(array, INFINITY) : []; + } + + /** + * Gets the first element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias first + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the first element of `array`. + * @example + * + * _.head([1, 2, 3]); + * // => 1 + * + * _.head([]); + * // => undefined + */ + function head(array) { + return (array && array.length) ? array[0] : undefined; + } + + /** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the + * offset from the end of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {*} value The value to search for. + * @param {number} [fromIndex=0] The index to search from. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // Search from the `fromIndex`. + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + */ + function indexOf(array, value, fromIndex) { + var length = array == null ? 0 : array.length; + if (!length) { + return -1; + } + var index = fromIndex == null ? 0 : toInteger(fromIndex); + if (index < 0) { + index = nativeMax(length + index, 0); + } + return baseIndexOf(array, value, index); + } + + /** + * Gets all but the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.initial([1, 2, 3]); + * // => [1, 2] + */ + function initial(array) { + var length = array == null ? 0 : array.length; + return length ? baseSlice(array, 0, -1) : []; + } + + /** + * Creates an array of unique values that are included in all given arrays + * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. The order and references of result values are + * determined by the first array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of intersecting values. + * @example + * + * _.intersection([2, 1], [2, 3]); + * // => [2] + */ + var intersection = baseRest(function(arrays) { + var mapped = arrayMap(arrays, castArrayLikeObject); + return (mapped.length && mapped[0] === arrays[0]) + ? baseIntersection(mapped) + : []; + }); + + /** + * Gets the last element of `array`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @returns {*} Returns the last element of `array`. + * @example + * + * _.last([1, 2, 3]); + * // => 3 + */ + function last(array) { + var length = array == null ? 0 : array.length; + return length ? array[length - 1] : undefined; + } + + /** + * Reverses `array` so that the first element becomes the last, the second + * element becomes the second to last, and so on. + * + * **Note:** This method mutates `array` and is based on + * [`Array#reverse`](https://mdn.io/Array/reverse). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to modify. + * @returns {Array} Returns `array`. + * @example + * + * var array = [1, 2, 3]; + * + * _.reverse(array); + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function reverse(array) { + return array == null ? array : nativeReverse.call(array); + } + + /** + * Creates a slice of `array` from `start` up to, but not including, `end`. + * + * **Note:** This method is used instead of + * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are + * returned. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to slice. + * @param {number} [start=0] The start position. + * @param {number} [end=array.length] The end position. + * @returns {Array} Returns the slice of `array`. + */ + function slice(array, start, end) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + if (end && typeof end != 'number' && isIterateeCall(array, start, end)) { + start = 0; + end = length; + } + else { + start = start == null ? 0 : toInteger(start); + end = end === undefined ? length : toInteger(end); + } + return baseSlice(array, start, end); + } + + /** + * Creates a slice of `array` with `n` elements taken from the beginning. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.take([1, 2, 3]); + * // => [1] + * + * _.take([1, 2, 3], 2); + * // => [1, 2] + * + * _.take([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.take([1, 2, 3], 0); + * // => [] + */ + function take(array, n, guard) { + if (!(array && array.length)) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + return baseSlice(array, 0, n < 0 ? 0 : n); + } + + /** + * Creates a slice of `array` with `n` elements taken from the end. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to query. + * @param {number} [n=1] The number of elements to take. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the slice of `array`. + * @example + * + * _.takeRight([1, 2, 3]); + * // => [3] + * + * _.takeRight([1, 2, 3], 2); + * // => [2, 3] + * + * _.takeRight([1, 2, 3], 5); + * // => [1, 2, 3] + * + * _.takeRight([1, 2, 3], 0); + * // => [] + */ + function takeRight(array, n, guard) { + var length = array == null ? 0 : array.length; + if (!length) { + return []; + } + n = (guard || n === undefined) ? 1 : toInteger(n); + n = length - n; + return baseSlice(array, n < 0 ? 0 : n, length); + } + + /** + * Creates an array of unique values, in order, from all given arrays using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to inspect. + * @returns {Array} Returns the new array of combined values. + * @example + * + * _.union([2], [1, 2]); + * // => [2, 1] + */ + var union = baseRest(function(arrays) { + return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true)); + }); + + /** + * Creates a duplicate-free version of an array, using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons, in which only the first occurrence of each element + * is kept. The order of result values is determined by the order they occur + * in the array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniq([2, 1, 2]); + * // => [2, 1] + */ + function uniq(array) { + return (array && array.length) ? baseUniq(array) : []; + } + + /** + * This method is like `_.uniq` except that it accepts `iteratee` which is + * invoked for each element in `array` to generate the criterion by which + * uniqueness is computed. The order of result values is determined by the + * order they occur in the array. The iteratee is invoked with one argument: + * (value). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Array} Returns the new duplicate free array. + * @example + * + * _.uniqBy([2.1, 1.2, 2.3], Math.floor); + * // => [2.1, 1.2] + * + * // The `_.property` iteratee shorthand. + * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x'); + * // => [{ 'x': 1 }, { 'x': 2 }] + */ + function uniqBy(array, iteratee) { + return (array && array.length) ? baseUniq(array, baseIteratee(iteratee, 2)) : []; + } + + /** + * This method is like `_.zip` except that it accepts an array of grouped + * elements and creates an array regrouping the elements to their pre-zip + * configuration. + * + * @static + * @memberOf _ + * @since 1.2.0 + * @category Array + * @param {Array} array The array of grouped elements to process. + * @returns {Array} Returns the new array of regrouped elements. + * @example + * + * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + * + * _.unzip(zipped); + * // => [['a', 'b'], [1, 2], [true, false]] + */ + function unzip(array) { + if (!(array && array.length)) { + return []; + } + var length = 0; + array = arrayFilter(array, function(group) { + if (isArrayLikeObject(group)) { + length = nativeMax(group.length, length); + return true; + } }); - - /** - * This method is like `_.find` except that it returns the key of the first - * element `predicate` returns truthy for instead of the element itself. - * - * @static - * @memberOf _ - * @since 1.1.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findKey(users, function(o) { return o.age < 40; }); - * // => 'barney' (iteration order is not guaranteed) - * - * // The `_.matches` iteratee shorthand. - * _.findKey(users, { 'age': 1, 'active': true }); - * // => 'pebbles' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findKey(users, 'active'); - * // => 'barney' - */ - function findKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); - } - - /** - * This method is like `_.findKey` except that it iterates over elements of - * a collection in the opposite order. - * - * @static - * @memberOf _ - * @since 2.0.0 - * @category Object - * @param {Object} object The object to inspect. - * @param {Function} [predicate=_.identity] The function invoked per iteration. - * @returns {string|undefined} Returns the key of the matched element, - * else `undefined`. - * @example - * - * var users = { - * 'barney': { 'age': 36, 'active': true }, - * 'fred': { 'age': 40, 'active': false }, - * 'pebbles': { 'age': 1, 'active': true } - * }; - * - * _.findLastKey(users, function(o) { return o.age < 40; }); - * // => returns 'pebbles' assuming `_.findKey` returns 'barney' - * - * // The `_.matches` iteratee shorthand. - * _.findLastKey(users, { 'age': 36, 'active': true }); - * // => 'barney' - * - * // The `_.matchesProperty` iteratee shorthand. - * _.findLastKey(users, ['active', false]); - * // => 'fred' - * - * // The `_.property` iteratee shorthand. - * _.findLastKey(users, 'active'); - * // => 'pebbles' - */ - function findLastKey(object, predicate) { - return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); - } - - /** - * Gets the value at `path` of `object`. If the resolved value is - * `undefined`, the `defaultValue` is returned in its place. - * - * @static - * @memberOf _ - * @since 3.7.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to get. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c': 3 } }] }; - * - * _.get(object, 'a[0].b.c'); - * // => 3 - * - * _.get(object, ['a', '0', 'b', 'c']); - * // => 3 - * - * _.get(object, 'a.b.c', 'default'); - * // => 'default' - */ - function get(object, path, defaultValue) { - var result = object == null ? undefined : baseGet(object, path); - return result === undefined ? defaultValue : result; - } - - /** - * Checks if `path` is a direct property of `object`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = { 'a': { 'b': 2 } }; - * var other = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.has(object, 'a'); - * // => true - * - * _.has(object, 'a.b'); - * // => true - * - * _.has(object, ['a', 'b']); - * // => true - * - * _.has(other, 'a'); - * // => false - */ - function has(object, path) { - return object != null && hasPath(object, path, baseHas); - } - - /** - * Checks if `path` is a direct or inherited property of `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path to check. - * @returns {boolean} Returns `true` if `path` exists, else `false`. - * @example - * - * var object = _.create({ 'a': _.create({ 'b': 2 }) }); - * - * _.hasIn(object, 'a'); - * // => true - * - * _.hasIn(object, 'a.b'); - * // => true - * - * _.hasIn(object, ['a', 'b']); - * // => true - * - * _.hasIn(object, 'b'); - * // => false - */ - function hasIn(object, path) { - return object != null && hasPath(object, path, baseHasIn); - } - - /** - * Creates an object composed of the inverted keys and values of `object`. - * If `object` contains duplicate values, subsequent values overwrite - * property assignments of previous values. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Object - * @param {Object} object The object to invert. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invert(object); - * // => { '1': 'c', '2': 'b' } - */ - var invert = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - result[value] = key; - }, constant(identity)); - - /** - * This method is like `_.invert` except that the inverted object is generated - * from the results of running each element of `object` thru `iteratee`. The - * corresponding inverted value of each inverted key is an array of keys - * responsible for generating the inverted value. The iteratee is invoked - * with one argument: (value). - * - * @static - * @memberOf _ - * @since 4.1.0 - * @category Object - * @param {Object} object The object to invert. - * @param {Function} [iteratee=_.identity] The iteratee invoked per element. - * @returns {Object} Returns the new inverted object. - * @example - * - * var object = { 'a': 1, 'b': 2, 'c': 1 }; - * - * _.invertBy(object); - * // => { '1': ['a', 'c'], '2': ['b'] } - * - * _.invertBy(object, function(value) { - * return 'group' + value; - * }); - * // => { 'group1': ['a', 'c'], 'group2': ['b'] } - */ - var invertBy = createInverter(function(result, value, key) { - if (value != null && - typeof value.toString != 'function') { - value = nativeObjectToString.call(value); - } - - if (hasOwnProperty.call(result, value)) { - result[value].push(key); - } else { - result[value] = [key]; - } - }, baseIteratee); - - /** - * Creates an array of the own enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. See the - * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) - * for more details. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keys(new Foo); - * // => ['a', 'b'] (iteration order is not guaranteed) - * - * _.keys('hi'); - * // => ['0', '1'] - */ - function keys(object) { - return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); - } - - /** - * Creates an array of the own and inherited enumerable property names of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property names. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.keysIn(new Foo); - * // => ['a', 'b', 'c'] (iteration order is not guaranteed) - */ - function keysIn(object) { - return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); - } - - /** - * This method is like `_.merge` except that it accepts `customizer` which - * is invoked to produce the merged values of the destination and source - * properties. If `customizer` returns `undefined`, merging is handled by the - * method instead. The `customizer` is invoked with six arguments: - * (objValue, srcValue, key, object, source, stack). - * - * **Note:** This method mutates `object`. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The destination object. - * @param {...Object} sources The source objects. - * @param {Function} customizer The function to customize assigned values. - * @returns {Object} Returns `object`. - * @example - * - * function customizer(objValue, srcValue) { - * if (_.isArray(objValue)) { - * return objValue.concat(srcValue); - * } - * } - * - * var object = { 'a': [1], 'b': [2] }; - * var other = { 'a': [3], 'b': [4] }; - * - * _.mergeWith(object, other, customizer); - * // => { 'a': [1, 3], 'b': [2, 4] } - */ - var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { - baseMerge(object, source, srcIndex, customizer); + return baseTimes(length, function(index) { + return arrayMap(array, baseProperty(index)); }); - - /** - * The opposite of `_.pick`; this method creates an object composed of the - * own and inherited enumerable property paths of `object` that are not omitted. - * - * **Note:** This method is considerably slower than `_.pick`. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to omit. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omit(object, ['a', 'c']); - * // => { 'b': '2' } - */ - var omit = flatRest(function(object, paths) { - var result = {}; - if (object == null) { - return result; - } - var isDeep = false; - paths = arrayMap(paths, function(path) { - path = castPath(path, object); - isDeep || (isDeep = path.length > 1); - return path; - }); - copyObject(object, getAllKeysIn(object), result); - if (isDeep) { - result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); - } - var length = paths.length; - while (length--) { - baseUnset(result, paths[length]); - } - return result; + } + + /** + * Creates an array excluding all given values using + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * for equality comparisons. + * + * **Note:** Unlike `_.pull`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {Array} array The array to inspect. + * @param {...*} [values] The values to exclude. + * @returns {Array} Returns the new array of filtered values. + * @see _.difference, _.xor + * @example + * + * _.without([2, 1, 2, 3], 1, 2); + * // => [3] + */ + var without = baseRest(function(array, values) { + return isArrayLikeObject(array) + ? baseDifference(array, values) + : []; + }); + + /** + * Creates an array of grouped elements, the first of which contains the + * first elements of the given arrays, the second of which contains the + * second elements of the given arrays, and so on. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zip(['a', 'b'], [1, 2], [true, false]); + * // => [['a', 1, true], ['b', 2, false]] + */ + var zip = baseRest(unzip); + + /** + * This method is like `_.fromPairs` except that it accepts two arrays, + * one of property identifiers and one of corresponding values. + * + * @static + * @memberOf _ + * @since 0.4.0 + * @category Array + * @param {Array} [props=[]] The property identifiers. + * @param {Array} [values=[]] The property values. + * @returns {Object} Returns the new object. + * @example + * + * _.zipObject(['a', 'b'], [1, 2]); + * // => { 'a': 1, 'b': 2 } + */ + function zipObject(props, values) { + return baseZipObject(props || [], values || [], assignValue); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a `lodash` wrapper instance that wraps `value` with explicit method + * chain sequences enabled. The result of such sequences must be unwrapped + * with `_#value`. + * + * @static + * @memberOf _ + * @since 1.3.0 + * @category Seq + * @param {*} value The value to wrap. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'pebbles', 'age': 1 } + * ]; + * + * var youngest = _ + * .chain(users) + * .sortBy('age') + * .map(function(o) { + * return o.user + ' is ' + o.age; + * }) + * .head() + * .value(); + * // => 'pebbles is 1' + */ + function chain(value) { + var result = lodash(value); + result.__chain__ = true; + return result; + } + + /** + * This method invokes `interceptor` and returns `value`. The interceptor + * is invoked with one argument; (value). The purpose of this method is to + * "tap into" a method chain sequence in order to modify intermediate results. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns `value`. + * @example + * + * _([1, 2, 3]) + * .tap(function(array) { + * // Mutate input array. + * array.pop(); + * }) + * .reverse() + * .value(); + * // => [2, 1] + */ + function tap(value, interceptor) { + interceptor(value); + return value; + } + + /** + * This method is like `_.tap` except that it returns the result of `interceptor`. + * The purpose of this method is to "pass thru" values replacing intermediate + * results in a method chain sequence. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Seq + * @param {*} value The value to provide to `interceptor`. + * @param {Function} interceptor The function to invoke. + * @returns {*} Returns the result of `interceptor`. + * @example + * + * _(' abc ') + * .chain() + * .trim() + * .thru(function(value) { + * return [value]; + * }) + * .value(); + * // => ['abc'] + */ + function thru(value, interceptor) { + return interceptor(value); + } + + /** + * This method is the wrapper version of `_.at`. + * + * @name at + * @memberOf _ + * @since 1.0.0 + * @category Seq + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] }; + * + * _(object).at(['a[0].b.c', 'a[1]']).value(); + * // => [3, 4] + */ + var wrapperAt = flatRest(function(paths) { + var length = paths.length, + start = length ? paths[0] : 0, + value = this.__wrapped__, + interceptor = function(object) { return baseAt(object, paths); }; + + if (length > 1 || this.__actions__.length || + !(value instanceof LazyWrapper) || !isIndex(start)) { + return this.thru(interceptor); + } + value = value.slice(start, +start + (length ? 1 : 0)); + value.__actions__.push({ + 'func': thru, + 'args': [interceptor], + 'thisArg': undefined }); - - /** - * The opposite of `_.pickBy`; this method creates an object composed of - * the own and inherited enumerable string keyed properties of `object` that - * `predicate` doesn't return truthy for. The predicate is invoked with two - * arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.omitBy(object, _.isNumber); - * // => { 'b': '2' } - */ - function omitBy(object, predicate) { - return pickBy(object, negate(baseIteratee(predicate))); - } - - /** - * Creates an object composed of the picked `object` properties. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The source object. - * @param {...(string|string[])} [paths] The property paths to pick. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pick(object, ['a', 'c']); - * // => { 'a': 1, 'c': 3 } - */ - var pick = flatRest(function(object, paths) { - return object == null ? {} : basePick(object, paths); + return new LodashWrapper(value, this.__chain__).thru(function(array) { + if (length && !array.length) { + array.push(undefined); + } + return array; }); - - /** - * Creates an object composed of the `object` properties `predicate` returns - * truthy for. The predicate is invoked with two arguments: (value, key). - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Object - * @param {Object} object The source object. - * @param {Function} [predicate=_.identity] The function invoked per property. - * @returns {Object} Returns the new object. - * @example - * - * var object = { 'a': 1, 'b': '2', 'c': 3 }; - * - * _.pickBy(object, _.isNumber); - * // => { 'a': 1, 'c': 3 } - */ - function pickBy(object, predicate) { - if (object == null) { - return {}; - } - var props = arrayMap(getAllKeysIn(object), function(prop) { - return [prop]; - }); - predicate = baseIteratee(predicate); - return basePickBy(object, props, function(value, path) { - return predicate(value, path[0]); - }); - } - - /** - * This method is like `_.get` except that if the resolved value is a - * function it's invoked with the `this` binding of its parent object and - * its result is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @param {Array|string} path The path of the property to resolve. - * @param {*} [defaultValue] The value returned for `undefined` resolved values. - * @returns {*} Returns the resolved value. - * @example - * - * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; - * - * _.result(object, 'a[0].b.c1'); - * // => 3 - * - * _.result(object, 'a[0].b.c2'); - * // => 4 - * - * _.result(object, 'a[0].b.c3', 'default'); - * // => 'default' - * - * _.result(object, 'a[0].b.c3', _.constant('default')); - * // => 'default' - */ - function result(object, path, defaultValue) { - path = castPath(path, object); - - var index = -1, - length = path.length; - - // Ensure the loop is entered when path is empty. - if (!length) { - length = 1; - object = undefined; - } - while (++index < length) { - var value = object == null ? undefined : object[toKey(path[index])]; - if (value === undefined) { - index = length; - value = defaultValue; - } - object = isFunction(value) ? value.call(object) : value; - } - return object; - } - - /** - * Creates an array of the own enumerable string keyed property values of `object`. - * - * **Note:** Non-object values are coerced to objects. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Object - * @param {Object} object The object to query. - * @returns {Array} Returns the array of property values. - * @example - * - * function Foo() { - * this.a = 1; - * this.b = 2; - * } - * - * Foo.prototype.c = 3; - * - * _.values(new Foo); - * // => [1, 2] (iteration order is not guaranteed) - * - * _.values('hi'); - * // => ['h', 'i'] - */ - function values(object) { - return object == null ? [] : baseValues(object, keys(object)); - } - - /*------------------------------------------------------------------------*/ - - /** - * Clamps `number` within the inclusive `lower` and `upper` bounds. - * - * @static - * @memberOf _ - * @since 4.0.0 - * @category Number - * @param {number} number The number to clamp. - * @param {number} [lower] The lower bound. - * @param {number} upper The upper bound. - * @returns {number} Returns the clamped number. - * @example - * - * _.clamp(-10, -5, 5); - * // => -5 - * - * _.clamp(10, -5, 5); - * // => 5 - */ - function clamp(number, lower, upper) { - if (upper === undefined) { - upper = lower; - lower = undefined; - } - if (upper !== undefined) { - upper = toNumber(upper); - upper = upper === upper ? upper : 0; - } - if (lower !== undefined) { - lower = toNumber(lower); - lower = lower === lower ? lower : 0; - } - return baseClamp(toNumber(number), lower, upper); - } - - /** - * Produces a random number between the inclusive `lower` and `upper` bounds. - * If only one argument is provided a number between `0` and the given number - * is returned. If `floating` is `true`, or either `lower` or `upper` are - * floats, a floating-point number is returned instead of an integer. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @memberOf _ - * @since 0.7.0 - * @category Number - * @param {number} [lower=0] The lower bound. - * @param {number} [upper=1] The upper bound. - * @param {boolean} [floating] Specify returning a floating-point number. - * @returns {number} Returns the random number. - * @example - * - * _.random(0, 5); - * // => an integer between 0 and 5 - * - * _.random(5); - * // => also an integer between 0 and 5 - * - * _.random(5, true); - * // => a floating-point number between 0 and 5 - * - * _.random(1.2, 5.2); - * // => a floating-point number between 1.2 and 5.2 - */ - function random(lower, upper, floating) { - if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { - upper = floating = undefined; - } - if (floating === undefined) { - if (typeof upper == 'boolean') { - floating = upper; - upper = undefined; - } - else if (typeof lower == 'boolean') { - floating = lower; - lower = undefined; - } - } - if (lower === undefined && upper === undefined) { - lower = 0; - upper = 1; - } - else { - lower = toFinite(lower); - if (upper === undefined) { - upper = lower; - lower = 0; - } else { - upper = toFinite(upper); - } - } - if (lower > upper) { - var temp = lower; - lower = upper; - upper = temp; - } - if (floating || lower % 1 || upper % 1) { - var rand = nativeRandom(); - return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); - } - return baseRandom(lower, upper); - } - - /*------------------------------------------------------------------------*/ - - /** - * Converts the characters "&", "<", ">", '"', and "'" in `string` to their - * corresponding HTML entities. - * - * **Note:** No other characters are escaped. To escape additional - * characters use a third-party library like [_he_](https://mths.be/he). - * - * Though the ">" character is escaped for symmetry, characters like - * ">" and "/" don't need escaping in HTML and have no special meaning - * unless they're part of a tag or unquoted attribute value. See - * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) - * (under "semi-related fun fact") for more details. - * - * When working with HTML you should always - * [quote attribute values](http://wonko.com/post/html-escaping) to reduce - * XSS vectors. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category String - * @param {string} [string=''] The string to escape. - * @returns {string} Returns the escaped string. - * @example - * - * _.escape('fred, barney, & pebbles'); - * // => 'fred, barney, & pebbles' - */ - function escape(string) { - string = toString(string); - return (string && reHasUnescapedHtml.test(string)) - ? string.replace(reUnescapedHtml, escapeHtmlChar) - : string; - } - - /** - * Removes leading and trailing whitespace or specified characters from `string`. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category String - * @param {string} [string=''] The string to trim. - * @param {string} [chars=whitespace] The characters to trim. - * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. - * @returns {string} Returns the trimmed string. - * @example - * - * _.trim(' abc '); - * // => 'abc' - * - * _.trim('-_-abc-_-', '_-'); - * // => 'abc' - * - * _.map([' foo ', ' bar '], _.trim); - * // => ['foo', 'bar'] - */ - function trim(string, chars, guard) { - string = toString(string); - if (string && (guard || chars === undefined)) { - return string.replace(reTrim, ''); - } - if (!string || !(chars = baseToString(chars))) { - return string; - } - var strSymbols = stringToArray(string), - chrSymbols = stringToArray(chars), - start = charsStartIndex(strSymbols, chrSymbols), - end = charsEndIndex(strSymbols, chrSymbols) + 1; - - return castSlice(strSymbols, start, end).join(''); - } - - /*------------------------------------------------------------------------*/ - - /** - * Creates a function that returns `value`. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {*} value The value to return from the new function. - * @returns {Function} Returns the new constant function. - * @example - * - * var objects = _.times(2, _.constant({ 'a': 1 })); - * - * console.log(objects); - * // => [{ 'a': 1 }, { 'a': 1 }] - * - * console.log(objects[0] === objects[1]); - * // => true - */ - function constant(value) { - return function() { - return value; - }; - } - - /** - * This method returns the first argument it receives. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {*} value Any value. - * @returns {*} Returns `value`. - * @example - * - * var object = { 'a': 1 }; - * - * console.log(_.identity(object) === object); - * // => true - */ - function identity(value) { - return value; - } - - /** - * Creates a function that invokes `func` with the arguments of the created - * function. If `func` is a property name, the created function returns the - * property value for a given element. If `func` is an array or object, the - * created function returns `true` for elements that contain the equivalent - * source properties, otherwise it returns `false`. - * - * @static - * @since 4.0.0 - * @memberOf _ - * @category Util - * @param {*} [func=_.identity] The value to convert to a callback. - * @returns {Function} Returns the callback. - * @example - * - * var users = [ - * { 'user': 'barney', 'age': 36, 'active': true }, - * { 'user': 'fred', 'age': 40, 'active': false } - * ]; - * - * // The `_.matches` iteratee shorthand. - * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); - * // => [{ 'user': 'barney', 'age': 36, 'active': true }] - * - * // The `_.matchesProperty` iteratee shorthand. - * _.filter(users, _.iteratee(['user', 'fred'])); - * // => [{ 'user': 'fred', 'age': 40 }] - * - * // The `_.property` iteratee shorthand. - * _.map(users, _.iteratee('user')); - * // => ['barney', 'fred'] - * - * // Create custom iteratee shorthands. - * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { - * return !_.isRegExp(func) ? iteratee(func) : function(string) { - * return func.test(string); - * }; - * }); - * - * _.filter(['abc', 'def'], /ef/); - * // => ['def'] - */ - function iteratee(func) { - return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); - } - - /** - * Creates a function that performs a partial deep comparison between a given - * object and `source`, returning `true` if the given object has equivalent - * property values, else `false`. - * - * **Note:** The created function is equivalent to `_.isMatch` with `source` - * partially applied. - * - * Partial comparisons will match empty array and empty object `source` - * values against any array or object value, respectively. See `_.isEqual` - * for a list of supported value comparisons. - * - * @static - * @memberOf _ - * @since 3.0.0 - * @category Util - * @param {Object} source The object of property values to match. - * @returns {Function} Returns the new spec function. - * @example - * - * var objects = [ - * { 'a': 1, 'b': 2, 'c': 3 }, - * { 'a': 4, 'b': 5, 'c': 6 } - * ]; - * - * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); - * // => [{ 'a': 4, 'b': 5, 'c': 6 }] - */ - function matches(source) { - return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); - } - - /** - * Adds all own enumerable string keyed function properties of a source - * object to the destination object. If `object` is a function, then methods - * are added to its prototype as well. - * - * **Note:** Use `_.runInContext` to create a pristine `lodash` function to - * avoid conflicts caused by modifying the original. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {Function|Object} [object=lodash] The destination object. - * @param {Object} source The object of functions to add. - * @param {Object} [options={}] The options object. - * @param {boolean} [options.chain=true] Specify whether mixins are chainable. - * @returns {Function|Object} Returns `object`. - * @example - * - * function vowels(string) { - * return _.filter(string, function(v) { - * return /[aeiou]/i.test(v); - * }); - * } - * - * _.mixin({ 'vowels': vowels }); - * _.vowels('fred'); - * // => ['e'] - * - * _('fred').vowels().value(); - * // => ['e'] - * - * _.mixin({ 'vowels': vowels }, { 'chain': false }); - * _('fred').vowels(); - * // => ['e'] - */ - function mixin(object, source, options) { - var props = keys(source), - methodNames = baseFunctions(source, props); - - if (options == null && - !(isObject(source) && (methodNames.length || !props.length))) { - options = source; - source = object; - object = this; - methodNames = baseFunctions(source, keys(source)); - } - var chain = !(isObject(options) && 'chain' in options) || !!options.chain, - isFunc = isFunction(object); - - arrayEach(methodNames, function(methodName) { - var func = source[methodName]; - object[methodName] = func; - if (isFunc) { - object.prototype[methodName] = function() { - var chainAll = this.__chain__; - if (chain || chainAll) { - var result = object(this.__wrapped__), - actions = result.__actions__ = copyArray(this.__actions__); - - actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); - result.__chain__ = chainAll; - return result; - } - return func.apply(object, arrayPush([this.value()], arguments)); - }; - } - }); - - return object; - } - - /** - * Reverts the `_` variable to its previous value and returns a reference to - * the `lodash` function. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @returns {Function} Returns the `lodash` function. - * @example - * - * var lodash = _.noConflict(); - */ - function noConflict() { - if (root._ === this) { - root._ = oldDash; - } - return this; - } - - /** - * This method returns `undefined`. - * - * @static - * @memberOf _ - * @since 2.3.0 - * @category Util - * @example - * - * _.times(2, _.noop); - * // => [undefined, undefined] - */ - function noop() { - // No operation performed. - } - - /** - * Creates a function that returns the value at `path` of a given object. - * - * @static - * @memberOf _ - * @since 2.4.0 - * @category Util - * @param {Array|string} path The path of the property to get. - * @returns {Function} Returns the new accessor function. - * @example - * - * var objects = [ - * { 'a': { 'b': 2 } }, - * { 'a': { 'b': 1 } } - * ]; - * - * _.map(objects, _.property('a.b')); - * // => [2, 1] - * - * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); - * // => [1, 2] - */ - function property(path) { - return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); - } - - /** - * Creates an array of numbers (positive and/or negative) progressing from - * `start` up to, but not including, `end`. A step of `-1` is used if a negative - * `start` is specified without an `end` or `step`. If `end` is not specified, - * it's set to `start` with `start` then set to `0`. - * - * **Note:** JavaScript follows the IEEE-754 standard for resolving - * floating-point values which can produce unexpected results. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {number} [start=0] The start of the range. - * @param {number} end The end of the range. - * @param {number} [step=1] The value to increment or decrement by. - * @returns {Array} Returns the range of numbers. - * @see _.inRange, _.rangeRight - * @example - * - * _.range(4); - * // => [0, 1, 2, 3] - * - * _.range(-4); - * // => [0, -1, -2, -3] - * - * _.range(1, 5); - * // => [1, 2, 3, 4] - * - * _.range(0, 20, 5); - * // => [0, 5, 10, 15] - * - * _.range(0, -4, -1); - * // => [0, -1, -2, -3] - * - * _.range(1, 4, 0); - * // => [1, 1, 1] - * - * _.range(0); - * // => [] - */ - var range = createRange(); - - /** - * This method returns a new empty array. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {Array} Returns the new empty array. - * @example - * - * var arrays = _.times(2, _.stubArray); - * - * console.log(arrays); - * // => [[], []] - * - * console.log(arrays[0] === arrays[1]); - * // => false - */ - function stubArray() { - return []; - } - - /** - * This method returns `false`. - * - * @static - * @memberOf _ - * @since 4.13.0 - * @category Util - * @returns {boolean} Returns `false`. - * @example - * - * _.times(2, _.stubFalse); - * // => [false, false] - */ - function stubFalse() { + }); + + /** + * Creates a `lodash` wrapper instance with explicit method chain sequences enabled. + * + * @name chain + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 } + * ]; + * + * // A sequence without explicit chaining. + * _(users).head(); + * // => { 'user': 'barney', 'age': 36 } + * + * // A sequence with explicit chaining. + * _(users) + * .chain() + * .head() + * .pick('user') + * .value(); + * // => { 'user': 'barney' } + */ + function wrapperChain() { + return chain(this); + } + + /** + * Executes the chain sequence and returns the wrapped result. + * + * @name commit + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2]; + * var wrapped = _(array).push(3); + * + * console.log(array); + * // => [1, 2] + * + * wrapped = wrapped.commit(); + * console.log(array); + * // => [1, 2, 3] + * + * wrapped.last(); + * // => 3 + * + * console.log(array); + * // => [1, 2, 3] + */ + function wrapperCommit() { + return new LodashWrapper(this.value(), this.__chain__); + } + + /** + * Gets the next value on a wrapped object following the + * [iterator protocol](https://mdn.io/iteration_protocols#iterator). + * + * @name next + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the next iterator value. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped.next(); + * // => { 'done': false, 'value': 1 } + * + * wrapped.next(); + * // => { 'done': false, 'value': 2 } + * + * wrapped.next(); + * // => { 'done': true, 'value': undefined } + */ + function wrapperNext() { + if (this.__values__ === undefined) { + this.__values__ = toArray(this.value()); + } + var done = this.__index__ >= this.__values__.length, + value = done ? undefined : this.__values__[this.__index__++]; + + return { 'done': done, 'value': value }; + } + + /** + * Enables the wrapper to be iterable. + * + * @name Symbol.iterator + * @memberOf _ + * @since 4.0.0 + * @category Seq + * @returns {Object} Returns the wrapper object. + * @example + * + * var wrapped = _([1, 2]); + * + * wrapped[Symbol.iterator]() === wrapped; + * // => true + * + * Array.from(wrapped); + * // => [1, 2] + */ + function wrapperToIterator() { + return this; + } + + /** + * Creates a clone of the chain sequence planting `value` as the wrapped value. + * + * @name plant + * @memberOf _ + * @since 3.2.0 + * @category Seq + * @param {*} value The value to plant. + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * function square(n) { + * return n * n; + * } + * + * var wrapped = _([1, 2]).map(square); + * var other = wrapped.plant([3, 4]); + * + * other.value(); + * // => [9, 16] + * + * wrapped.value(); + * // => [1, 4] + */ + function wrapperPlant(value) { + var result, + parent = this; + + while (parent instanceof baseLodash) { + var clone = wrapperClone(parent); + clone.__index__ = 0; + clone.__values__ = undefined; + if (result) { + previous.__wrapped__ = clone; + } else { + result = clone; + } + var previous = clone; + parent = parent.__wrapped__; + } + previous.__wrapped__ = value; + return result; + } + + /** + * This method is the wrapper version of `_.reverse`. + * + * **Note:** This method mutates the wrapped array. + * + * @name reverse + * @memberOf _ + * @since 0.1.0 + * @category Seq + * @returns {Object} Returns the new `lodash` wrapper instance. + * @example + * + * var array = [1, 2, 3]; + * + * _(array).reverse().value() + * // => [3, 2, 1] + * + * console.log(array); + * // => [3, 2, 1] + */ + function wrapperReverse() { + var value = this.__wrapped__; + if (value instanceof LazyWrapper) { + var wrapped = value; + if (this.__actions__.length) { + wrapped = new LazyWrapper(this); + } + wrapped = wrapped.reverse(); + wrapped.__actions__.push({ + 'func': thru, + 'args': [reverse], + 'thisArg': undefined + }); + return new LodashWrapper(wrapped, this.__chain__); + } + return this.thru(reverse); + } + + /** + * Executes the chain sequence to resolve the unwrapped value. + * + * @name value + * @memberOf _ + * @since 0.1.0 + * @alias toJSON, valueOf + * @category Seq + * @returns {*} Returns the resolved unwrapped value. + * @example + * + * _([1, 2, 3]).value(); + * // => [1, 2, 3] + */ + function wrapperValue() { + return baseWrapperValue(this.__wrapped__, this.__actions__); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates an object composed of keys generated from the results of running + * each element of `collection` thru `iteratee`. The corresponding value of + * each key is the number of times the key was returned by `iteratee`. The + * iteratee is invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The iteratee to transform keys. + * @returns {Object} Returns the composed aggregate object. + * @example + * + * _.countBy([6.1, 4.2, 6.3], Math.floor); + * // => { '4': 1, '6': 2 } + * + * // The `_.property` iteratee shorthand. + * _.countBy(['one', 'two', 'three'], 'length'); + * // => { '3': 2, '5': 1 } + */ + var countBy = createAggregator(function(result, value, key) { + if (hasOwnProperty.call(result, key)) { + ++result[key]; + } else { + baseAssignValue(result, key, 1); + } + }); + + /** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * Iteration is stopped once `predicate` returns falsey. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * **Note:** This method returns `true` for + * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because + * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of + * elements of empty collections. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.every(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.every(users, 'active'); + * // => false + */ + function every(collection, predicate, guard) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning an array of all elements + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * **Note:** Unlike `_.remove`, this method returns a new array. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.reject + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * _.filter(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, { 'age': 36, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.filter(users, 'active'); + * // => objects for ['barney'] + */ + function filter(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Iterates over elements of `collection`, returning the first element + * `predicate` returns truthy for. The predicate is invoked with three + * arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param {number} [fromIndex=0] The index to search from. + * @returns {*} Returns the matched element, else `undefined`. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false }, + * { 'user': 'pebbles', 'age': 1, 'active': true } + * ]; + * + * _.find(users, function(o) { return o.age < 40; }); + * // => object for 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.find(users, { 'age': 1, 'active': true }); + * // => object for 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.find(users, ['active', false]); + * // => object for 'fred' + * + * // The `_.property` iteratee shorthand. + * _.find(users, 'active'); + * // => object for 'barney' + */ + var find = createFind(findIndex); + + /** + * Iterates over elements of `collection` and invokes `iteratee` for each element. + * The iteratee is invoked with three arguments: (value, index|key, collection). + * Iteratee functions may exit iteration early by explicitly returning `false`. + * + * **Note:** As with other "Collections" methods, objects with a "length" + * property are iterated like arrays. To avoid this behavior use `_.forIn` + * or `_.forOwn` for object iteration. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @alias each + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array|Object} Returns `collection`. + * @see _.forEachRight + * @example + * + * _.forEach([1, 2], function(value) { + * console.log(value); + * }); + * // => Logs `1` then `2`. + * + * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) { + * console.log(key); + * }); + * // => Logs 'a' then 'b' (iteration order is not guaranteed). + */ + function forEach(collection, iteratee) { + var func = isArray(collection) ? arrayEach : baseEach; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Creates an array of values by running each element in `collection` thru + * `iteratee`. The iteratee is invoked with three arguments: + * (value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`. + * + * The guarded methods are: + * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`, + * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`, + * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`, + * `template`, `trim`, `trimEnd`, `trimStart`, and `words` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new mapped array. + * @example + * + * function square(n) { + * return n * n; + * } + * + * _.map([4, 8], square); + * // => [16, 64] + * + * _.map({ 'a': 4, 'b': 8 }, square); + * // => [16, 64] (iteration order is not guaranteed) + * + * var users = [ + * { 'user': 'barney' }, + * { 'user': 'fred' } + * ]; + * + * // The `_.property` iteratee shorthand. + * _.map(users, 'user'); + * // => ['barney', 'fred'] + */ + function map(collection, iteratee) { + var func = isArray(collection) ? arrayMap : baseMap; + return func(collection, baseIteratee(iteratee, 3)); + } + + /** + * Reduces `collection` to a value which is the accumulated result of running + * each element in `collection` thru `iteratee`, where each successive + * invocation is supplied the return value of the previous. If `accumulator` + * is not given, the first element of `collection` is used as the initial + * value. The iteratee is invoked with four arguments: + * (accumulator, value, index|key, collection). + * + * Many lodash methods are guarded to work as iteratees for methods like + * `_.reduce`, `_.reduceRight`, and `_.transform`. + * + * The guarded methods are: + * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`, + * and `sortBy` + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [iteratee=_.identity] The function invoked per iteration. + * @param {*} [accumulator] The initial value. + * @returns {*} Returns the accumulated value. + * @see _.reduceRight + * @example + * + * _.reduce([1, 2], function(sum, n) { + * return sum + n; + * }, 0); + * // => 3 + * + * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { + * (result[value] || (result[value] = [])).push(key); + * return result; + * }, {}); + * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed) + */ + function reduce(collection, iteratee, accumulator) { + var func = isArray(collection) ? arrayReduce : baseReduce, + initAccum = arguments.length < 3; + + return func(collection, baseIteratee(iteratee, 4), accumulator, initAccum, baseEach); + } + + /** + * The opposite of `_.filter`; this method returns the elements of `collection` + * that `predicate` does **not** return truthy for. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {Array} Returns the new filtered array. + * @see _.filter + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': false }, + * { 'user': 'fred', 'age': 40, 'active': true } + * ]; + * + * _.reject(users, function(o) { return !o.active; }); + * // => objects for ['fred'] + * + * // The `_.matches` iteratee shorthand. + * _.reject(users, { 'age': 40, 'active': true }); + * // => objects for ['barney'] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.reject(users, ['active', false]); + * // => objects for ['fred'] + * + * // The `_.property` iteratee shorthand. + * _.reject(users, 'active'); + * // => objects for ['barney'] + */ + function reject(collection, predicate) { + var func = isArray(collection) ? arrayFilter : baseFilter; + return func(collection, negate(baseIteratee(predicate, 3))); + } + + /** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ + function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; + } + + /** + * Checks if `predicate` returns truthy for **any** element of `collection`. + * Iteration is stopped once `predicate` returns truthy. The predicate is + * invoked with three arguments: (value, index|key, collection). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {boolean} Returns `true` if any element passes the predicate check, + * else `false`. + * @example + * + * _.some([null, 0, 'yes', false], Boolean); + * // => true + * + * var users = [ + * { 'user': 'barney', 'active': true }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.some(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // The `_.matchesProperty` iteratee shorthand. + * _.some(users, ['active', false]); + * // => true + * + * // The `_.property` iteratee shorthand. + * _.some(users, 'active'); + * // => true + */ + function some(collection, predicate, guard) { + var func = isArray(collection) ? arraySome : baseSome; + if (guard && isIterateeCall(collection, predicate, guard)) { + predicate = undefined; + } + return func(collection, baseIteratee(predicate, 3)); + } + + /** + * Creates an array of elements, sorted in ascending order by the results of + * running each element in a collection thru each iteratee. This method + * performs a stable sort, that is, it preserves the original sort order of + * equal elements. The iteratees are invoked with one argument: (value). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object} collection The collection to iterate over. + * @param {...(Function|Function[])} [iteratees=[_.identity]] + * The iteratees to sort by. + * @returns {Array} Returns the new sorted array. + * @example + * + * var users = [ + * { 'user': 'fred', 'age': 48 }, + * { 'user': 'barney', 'age': 36 }, + * { 'user': 'fred', 'age': 40 }, + * { 'user': 'barney', 'age': 34 } + * ]; + * + * _.sortBy(users, [function(o) { return o.user; }]); + * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]] + * + * _.sortBy(users, ['user', 'age']); + * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]] + */ + var sortBy = baseRest(function(collection, iteratees) { + if (collection == null) { + return []; + } + var length = iteratees.length; + if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) { + iteratees = []; + } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) { + iteratees = [iteratees[0]]; + } + return baseOrderBy(collection, baseFlatten(iteratees, 1), []); + }); + + /*------------------------------------------------------------------------*/ + + /** + * Gets the timestamp of the number of milliseconds that have elapsed since + * the Unix epoch (1 January 1970 00:00:00 UTC). + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Date + * @returns {number} Returns the timestamp. + * @example + * + * _.defer(function(stamp) { + * console.log(_.now() - stamp); + * }, _.now()); + * // => Logs the number of milliseconds it took for the deferred invocation. + */ + var now = function() { + return root.Date.now(); + }; + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that invokes `func`, with the `this` binding and arguments + * of the created function, while it's called less than `n` times. Subsequent + * calls to the created function return the result of the last `func` invocation. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {number} n The number of calls at which `func` is no longer invoked. + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * jQuery(element).on('click', _.before(5, addContactToList)); + * // => Allows adding up to 4 contacts to the list. + */ + function before(n, func) { + var result; + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + n = toInteger(n); + return function() { + if (--n > 0) { + result = func.apply(this, arguments); + } + if (n <= 1) { + func = undefined; + } + return result; + }; + } + + /** + * Creates a function that invokes `func` with the `this` binding of `thisArg` + * and `partials` prepended to the arguments it receives. + * + * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds, + * may be used as a placeholder for partially applied arguments. + * + * **Note:** Unlike native `Function#bind`, this method doesn't set the "length" + * property of bound functions. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to bind. + * @param {*} thisArg The `this` binding of `func`. + * @param {...*} [partials] The arguments to be partially applied. + * @returns {Function} Returns the new bound function. + * @example + * + * function greet(greeting, punctuation) { + * return greeting + ' ' + this.user + punctuation; + * } + * + * var object = { 'user': 'fred' }; + * + * var bound = _.bind(greet, object, 'hi'); + * bound('!'); + * // => 'hi fred!' + * + * // Bound with placeholders. + * var bound = _.bind(greet, object, _, '!'); + * bound('hi'); + * // => 'hi fred!' + */ + var bind = baseRest(function(func, thisArg, partials) { + var bitmask = WRAP_BIND_FLAG; + if (partials.length) { + var holders = replaceHolders(partials, getHolder(bind)); + bitmask |= WRAP_PARTIAL_FLAG; + } + return createWrap(func, bitmask, thisArg, partials, holders); + }); + + /** + * Creates a debounced function that delays invoking `func` until after `wait` + * milliseconds have elapsed since the last time the debounced function was + * invoked. The debounced function comes with a `cancel` method to cancel + * delayed `func` invocations and a `flush` method to immediately invoke them. + * Provide `options` to indicate whether `func` should be invoked on the + * leading and/or trailing edge of the `wait` timeout. The `func` is invoked + * with the last arguments provided to the debounced function. Subsequent + * calls to the debounced function return the result of the last `func` + * invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the debounced function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.debounce` and `_.throttle`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to debounce. + * @param {number} [wait=0] The number of milliseconds to delay. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=false] + * Specify invoking on the leading edge of the timeout. + * @param {number} [options.maxWait] + * The maximum time `func` is allowed to be delayed before it's invoked. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new debounced function. + * @example + * + * // Avoid costly calculations while the window size is in flux. + * jQuery(window).on('resize', _.debounce(calculateLayout, 150)); + * + * // Invoke `sendMail` when clicked, debouncing subsequent calls. + * jQuery(element).on('click', _.debounce(sendMail, 300, { + * 'leading': true, + * 'trailing': false + * })); + * + * // Ensure `batchLog` is invoked once after 1 second of debounced calls. + * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 }); + * var source = new EventSource('/stream'); + * jQuery(source).on('message', debounced); + * + * // Cancel the trailing debounced invocation. + * jQuery(window).on('popstate', debounced.cancel); + */ + function debounce(func, wait, options) { + var lastArgs, + lastThis, + maxWait, + result, + timerId, + lastCallTime, + lastInvokeTime = 0, + leading = false, + maxing = false, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + wait = toNumber(wait) || 0; + if (isObject(options)) { + leading = !!options.leading; + maxing = 'maxWait' in options; + maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + + function invokeFunc(time) { + var args = lastArgs, + thisArg = lastThis; + + lastArgs = lastThis = undefined; + lastInvokeTime = time; + result = func.apply(thisArg, args); + return result; + } + + function leadingEdge(time) { + // Reset any `maxWait` timer. + lastInvokeTime = time; + // Start the timer for the trailing edge. + timerId = setTimeout(timerExpired, wait); + // Invoke the leading edge. + return leading ? invokeFunc(time) : result; + } + + function remainingWait(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime, + timeWaiting = wait - timeSinceLastCall; + + return maxing + ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke) + : timeWaiting; + } + + function shouldInvoke(time) { + var timeSinceLastCall = time - lastCallTime, + timeSinceLastInvoke = time - lastInvokeTime; + + // Either this is the first call, activity has stopped and we're at the + // trailing edge, the system time has gone backwards and we're treating + // it as the trailing edge, or we've hit the `maxWait` limit. + return (lastCallTime === undefined || (timeSinceLastCall >= wait) || + (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait)); + } + + function timerExpired() { + var time = now(); + if (shouldInvoke(time)) { + return trailingEdge(time); + } + // Restart the timer. + timerId = setTimeout(timerExpired, remainingWait(time)); + } + + function trailingEdge(time) { + timerId = undefined; + + // Only invoke if we have `lastArgs` which means `func` has been + // debounced at least once. + if (trailing && lastArgs) { + return invokeFunc(time); + } + lastArgs = lastThis = undefined; + return result; + } + + function cancel() { + if (timerId !== undefined) { + clearTimeout(timerId); + } + lastInvokeTime = 0; + lastArgs = lastCallTime = lastThis = timerId = undefined; + } + + function flush() { + return timerId === undefined ? result : trailingEdge(now()); + } + + function debounced() { + var time = now(), + isInvoking = shouldInvoke(time); + + lastArgs = arguments; + lastThis = this; + lastCallTime = time; + + if (isInvoking) { + if (timerId === undefined) { + return leadingEdge(lastCallTime); + } + if (maxing) { + // Handle invocations in a tight loop. + timerId = setTimeout(timerExpired, wait); + return invokeFunc(lastCallTime); + } + } + if (timerId === undefined) { + timerId = setTimeout(timerExpired, wait); + } + return result; + } + debounced.cancel = cancel; + debounced.flush = flush; + return debounced; + } + + /** + * Defers invoking the `func` until the current call stack has cleared. Any + * additional arguments are provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to defer. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.defer(function(text) { + * console.log(text); + * }, 'deferred'); + * // => Logs 'deferred' after one millisecond. + */ + var defer = baseRest(function(func, args) { + return baseDelay(func, 1, args); + }); + + /** + * Invokes `func` after `wait` milliseconds. Any additional arguments are + * provided to `func` when it's invoked. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to delay. + * @param {number} wait The number of milliseconds to delay invocation. + * @param {...*} [args] The arguments to invoke `func` with. + * @returns {number} Returns the timer id. + * @example + * + * _.delay(function(text) { + * console.log(text); + * }, 1000, 'later'); + * // => Logs 'later' after one second. + */ + var delay = baseRest(function(func, wait, args) { + return baseDelay(func, toNumber(wait) || 0, args); + }); + + /** + * Creates a function that memoizes the result of `func`. If `resolver` is + * provided, it determines the cache key for storing the result based on the + * arguments provided to the memoized function. By default, the first argument + * provided to the memoized function is used as the map cache key. The `func` + * is invoked with the `this` binding of the memoized function. + * + * **Note:** The cache is exposed as the `cache` property on the memoized + * function. Its creation may be customized by replacing the `_.memoize.Cache` + * constructor with one whose instances implement the + * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object) + * method interface of `clear`, `delete`, `get`, `has`, and `set`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to have its output memoized. + * @param {Function} [resolver] The function to resolve the cache key. + * @returns {Function} Returns the new memoized function. + * @example + * + * var object = { 'a': 1, 'b': 2 }; + * var other = { 'c': 3, 'd': 4 }; + * + * var values = _.memoize(_.values); + * values(object); + * // => [1, 2] + * + * values(other); + * // => [3, 4] + * + * object.a = 2; + * values(object); + * // => [1, 2] + * + * // Modify the result cache. + * values.cache.set(object, ['a', 'b']); + * values(object); + * // => ['a', 'b'] + * + * // Replace `_.memoize.Cache`. + * _.memoize.Cache = WeakMap; + */ + function memoize(func, resolver) { + if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) { + throw new TypeError(FUNC_ERROR_TEXT); + } + var memoized = function() { + var args = arguments, + key = resolver ? resolver.apply(this, args) : args[0], + cache = memoized.cache; + + if (cache.has(key)) { + return cache.get(key); + } + var result = func.apply(this, args); + memoized.cache = cache.set(key, result) || cache; + return result; + }; + memoized.cache = new (memoize.Cache || MapCache); + return memoized; + } + + // Expose `MapCache`. + memoize.Cache = MapCache; + + /** + * Creates a function that negates the result of the predicate `func`. The + * `func` predicate is invoked with the `this` binding and arguments of the + * created function. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Function + * @param {Function} predicate The predicate to negate. + * @returns {Function} Returns the new negated function. + * @example + * + * function isEven(n) { + * return n % 2 == 0; + * } + * + * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven)); + * // => [1, 3, 5] + */ + function negate(predicate) { + if (typeof predicate != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + return function() { + var args = arguments; + switch (args.length) { + case 0: return !predicate.call(this); + case 1: return !predicate.call(this, args[0]); + case 2: return !predicate.call(this, args[0], args[1]); + case 3: return !predicate.call(this, args[0], args[1], args[2]); + } + return !predicate.apply(this, args); + }; + } + + /** + * Creates a function that is restricted to invoking `func` once. Repeat calls + * to the function return the value of the first invocation. The `func` is + * invoked with the `this` binding and arguments of the created function. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to restrict. + * @returns {Function} Returns the new restricted function. + * @example + * + * var initialize = _.once(createApplication); + * initialize(); + * initialize(); + * // => `createApplication` is invoked once + */ + function once(func) { + return before(2, func); + } + + /** + * Creates a function that invokes `func` with the `this` binding of the + * created function and arguments from `start` and beyond provided as + * an array. + * + * **Note:** This method is based on the + * [rest parameter](https://mdn.io/rest_parameters). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Function + * @param {Function} func The function to apply a rest parameter to. + * @param {number} [start=func.length-1] The start position of the rest parameter. + * @returns {Function} Returns the new function. + * @example + * + * var say = _.rest(function(what, names) { + * return what + ' ' + _.initial(names).join(', ') + + * (_.size(names) > 1 ? ', & ' : '') + _.last(names); + * }); + * + * say('hello', 'fred', 'barney', 'pebbles'); + * // => 'hello fred, barney, & pebbles' + */ + function rest(func, start) { + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + start = start === undefined ? start : toInteger(start); + return baseRest(func, start); + } + + /** + * Creates a throttled function that only invokes `func` at most once per + * every `wait` milliseconds. The throttled function comes with a `cancel` + * method to cancel delayed `func` invocations and a `flush` method to + * immediately invoke them. Provide `options` to indicate whether `func` + * should be invoked on the leading and/or trailing edge of the `wait` + * timeout. The `func` is invoked with the last arguments provided to the + * throttled function. Subsequent calls to the throttled function return the + * result of the last `func` invocation. + * + * **Note:** If `leading` and `trailing` options are `true`, `func` is + * invoked on the trailing edge of the timeout only if the throttled function + * is invoked more than once during the `wait` timeout. + * + * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred + * until to the next tick, similar to `setTimeout` with a timeout of `0`. + * + * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/) + * for details over the differences between `_.throttle` and `_.debounce`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Function + * @param {Function} func The function to throttle. + * @param {number} [wait=0] The number of milliseconds to throttle invocations to. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.leading=true] + * Specify invoking on the leading edge of the timeout. + * @param {boolean} [options.trailing=true] + * Specify invoking on the trailing edge of the timeout. + * @returns {Function} Returns the new throttled function. + * @example + * + * // Avoid excessively updating the position while scrolling. + * jQuery(window).on('scroll', _.throttle(updatePosition, 100)); + * + * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes. + * var throttled = _.throttle(renewToken, 300000, { 'trailing': false }); + * jQuery(element).on('click', throttled); + * + * // Cancel the trailing throttled invocation. + * jQuery(window).on('popstate', throttled.cancel); + */ + function throttle(func, wait, options) { + var leading = true, + trailing = true; + + if (typeof func != 'function') { + throw new TypeError(FUNC_ERROR_TEXT); + } + if (isObject(options)) { + leading = 'leading' in options ? !!options.leading : leading; + trailing = 'trailing' in options ? !!options.trailing : trailing; + } + return debounce(func, wait, { + 'leading': leading, + 'maxWait': wait, + 'trailing': trailing + }); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a shallow clone of `value`. + * + * **Note:** This method is loosely based on the + * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm) + * and supports cloning arrays, array buffers, booleans, date objects, maps, + * numbers, `Object` objects, regexes, sets, strings, symbols, and typed + * arrays. The own enumerable properties of `arguments` objects are cloned + * as plain objects. An empty object is returned for uncloneable values such + * as error objects, functions, DOM nodes, and WeakMaps. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to clone. + * @returns {*} Returns the cloned value. + * @see _.cloneDeep + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var shallow = _.clone(objects); + * console.log(shallow[0] === objects[0]); + * // => true + */ + function clone(value) { + return baseClone(value, CLONE_SYMBOLS_FLAG); + } + + /** + * This method is like `_.clone` except that it recursively clones `value`. + * + * @static + * @memberOf _ + * @since 1.0.0 + * @category Lang + * @param {*} value The value to recursively clone. + * @returns {*} Returns the deep cloned value. + * @see _.clone + * @example + * + * var objects = [{ 'a': 1 }, { 'b': 2 }]; + * + * var deep = _.cloneDeep(objects); + * console.log(deep[0] === objects[0]); + * // => false + */ + function cloneDeep(value) { + return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG); + } + + /** + * Performs a + * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero) + * comparison between two values to determine if they are equivalent. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.eq(object, object); + * // => true + * + * _.eq(object, other); + * // => false + * + * _.eq('a', 'a'); + * // => true + * + * _.eq('a', Object('a')); + * // => false + * + * _.eq(NaN, NaN); + * // => true + */ + function eq(value, other) { + return value === other || (value !== value && other !== other); + } + + /** + * Checks if `value` is likely an `arguments` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an `arguments` object, + * else `false`. + * @example + * + * _.isArguments(function() { return arguments; }()); + * // => true + * + * _.isArguments([1, 2, 3]); + * // => false + */ + var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) { + return isObjectLike(value) && hasOwnProperty.call(value, 'callee') && + !propertyIsEnumerable.call(value, 'callee'); + }; + + /** + * Checks if `value` is classified as an `Array` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array, else `false`. + * @example + * + * _.isArray([1, 2, 3]); + * // => true + * + * _.isArray(document.body.children); + * // => false + * + * _.isArray('abc'); + * // => false + * + * _.isArray(_.noop); + * // => false + */ + var isArray = Array.isArray; + + /** + * Checks if `value` is array-like. A value is considered array-like if it's + * not a function and has a `value.length` that's an integer greater than or + * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is array-like, else `false`. + * @example + * + * _.isArrayLike([1, 2, 3]); + * // => true + * + * _.isArrayLike(document.body.children); + * // => true + * + * _.isArrayLike('abc'); + * // => true + * + * _.isArrayLike(_.noop); + * // => false + */ + function isArrayLike(value) { + return value != null && isLength(value.length) && !isFunction(value); + } + + /** + * This method is like `_.isArrayLike` except that it also checks if `value` + * is an object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an array-like object, + * else `false`. + * @example + * + * _.isArrayLikeObject([1, 2, 3]); + * // => true + * + * _.isArrayLikeObject(document.body.children); + * // => true + * + * _.isArrayLikeObject('abc'); + * // => false + * + * _.isArrayLikeObject(_.noop); + * // => false + */ + function isArrayLikeObject(value) { + return isObjectLike(value) && isArrayLike(value); + } + + /** + * Checks if `value` is classified as a boolean primitive or object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a boolean, else `false`. + * @example + * + * _.isBoolean(false); + * // => true + * + * _.isBoolean(null); + * // => false + */ + function isBoolean(value) { + return value === true || value === false || + (isObjectLike(value) && baseGetTag(value) == boolTag); + } + + /** + * Checks if `value` is a buffer. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a buffer, else `false`. + * @example + * + * _.isBuffer(new Buffer(2)); + * // => true + * + * _.isBuffer(new Uint8Array(2)); + * // => false + */ + var isBuffer = nativeIsBuffer || stubFalse; + + /** + * Checks if `value` is classified as a `Date` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a date object, else `false`. + * @example + * + * _.isDate(new Date); + * // => true + * + * _.isDate('Mon April 23 2012'); + * // => false + */ + var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate; + + /** + * Checks if `value` is an empty object, collection, map, or set. + * + * Objects are considered empty if they have no own enumerable string keyed + * properties. + * + * Array-like values such as `arguments` objects, arrays, buffers, strings, or + * jQuery-like collections are considered empty if they have a `length` of `0`. + * Similarly, maps and sets are considered empty if they have a `size` of `0`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is empty, else `false`. + * @example + * + * _.isEmpty(null); + * // => true + * + * _.isEmpty(true); + * // => true + * + * _.isEmpty(1); + * // => true + * + * _.isEmpty([1, 2, 3]); + * // => false + * + * _.isEmpty({ 'a': 1 }); + * // => false + */ + function isEmpty(value) { + if (value == null) { + return true; + } + if (isArrayLike(value) && + (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' || + isBuffer(value) || isTypedArray(value) || isArguments(value))) { + return !value.length; + } + var tag = getTag(value); + if (tag == mapTag || tag == setTag) { + return !value.size; + } + if (isPrototype(value)) { + return !baseKeys(value).length; + } + for (var key in value) { + if (hasOwnProperty.call(value, key)) { return false; - } - - /** - * Generates a unique ID. If `prefix` is given, the ID is appended to it. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Util - * @param {string} [prefix=''] The value to prefix the ID with. - * @returns {string} Returns the unique ID. - * @example - * - * _.uniqueId('contact_'); - * // => 'contact_104' - * - * _.uniqueId(); - * // => '105' - */ - function uniqueId(prefix) { - var id = ++idCounter; - return toString(prefix) + id; - } - - /*------------------------------------------------------------------------*/ - - /** - * Computes the maximum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the maximum value. - * @example - * - * _.max([4, 2, 8, 6]); - * // => 8 - * - * _.max([]); - * // => undefined - */ - function max(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseGt) - : undefined; - } - - /** - * Computes the minimum value of `array`. If `array` is empty or falsey, - * `undefined` is returned. - * - * @static - * @since 0.1.0 - * @memberOf _ - * @category Math - * @param {Array} array The array to iterate over. - * @returns {*} Returns the minimum value. - * @example - * - * _.min([4, 2, 8, 6]); - * // => 2 - * - * _.min([]); - * // => undefined - */ - function min(array) { - return (array && array.length) - ? baseExtremum(array, identity, baseLt) - : undefined; - } - - /*------------------------------------------------------------------------*/ - - // Add methods that return wrapped values in chain sequences. - lodash.assignIn = assignIn; - lodash.before = before; - lodash.bind = bind; - lodash.chain = chain; - lodash.compact = compact; - lodash.concat = concat; - lodash.countBy = countBy; - lodash.create = create; - lodash.debounce = debounce; - lodash.defaults = defaults; - lodash.defaultsDeep = defaultsDeep; - lodash.defer = defer; - lodash.delay = delay; - lodash.difference = difference; - lodash.drop = drop; - lodash.filter = filter; - lodash.flatten = flatten; - lodash.flattenDeep = flattenDeep; - lodash.initial = initial; - lodash.intersection = intersection; - lodash.invert = invert; - lodash.invertBy = invertBy; - lodash.iteratee = iteratee; - lodash.keys = keys; - lodash.map = map; - lodash.matches = matches; - lodash.mixin = mixin; - lodash.negate = negate; - lodash.omit = omit; - lodash.omitBy = omitBy; - lodash.once = once; - lodash.pick = pick; - lodash.range = range; - lodash.reject = reject; - lodash.rest = rest; - lodash.slice = slice; - lodash.sortBy = sortBy; - lodash.take = take; - lodash.takeRight = takeRight; - lodash.tap = tap; - lodash.throttle = throttle; - lodash.thru = thru; - lodash.toArray = toArray; - lodash.union = union; - lodash.uniq = uniq; - lodash.uniqBy = uniqBy; - lodash.unzip = unzip; - lodash.values = values; - lodash.without = without; - lodash.zip = zip; - lodash.zipObject = zipObject; - - // Add aliases. - lodash.extend = assignIn; - - // Add methods to `lodash.prototype`. - mixin(lodash, lodash); - - /*------------------------------------------------------------------------*/ - - // Add methods that return unwrapped values in chain sequences. - lodash.clamp = clamp; - lodash.clone = clone; - lodash.cloneDeep = cloneDeep; - lodash.escape = escape; - lodash.every = every; - lodash.find = find; - lodash.findIndex = findIndex; - lodash.findKey = findKey; - lodash.findLastIndex = findLastIndex; - lodash.findLastKey = findLastKey; - lodash.forEach = forEach; - lodash.get = get; - lodash.has = has; - lodash.head = head; - lodash.identity = identity; - lodash.indexOf = indexOf; - lodash.isArguments = isArguments; - lodash.isArray = isArray; - lodash.isArrayLike = isArrayLike; - lodash.isBoolean = isBoolean; - lodash.isDate = isDate; - lodash.isEmpty = isEmpty; - lodash.isEqual = isEqual; - lodash.isFinite = isFinite; - lodash.isFunction = isFunction; - lodash.isNaN = isNaN; - lodash.isNull = isNull; - lodash.isNumber = isNumber; - lodash.isObject = isObject; - lodash.isPlainObject = isPlainObject; - lodash.isRegExp = isRegExp; - lodash.isString = isString; - lodash.isUndefined = isUndefined; - lodash.last = last; - lodash.max = max; - lodash.min = min; - lodash.noConflict = noConflict; - lodash.noop = noop; - lodash.random = random; - lodash.reduce = reduce; - lodash.result = result; - lodash.size = size; - lodash.some = some; - lodash.trim = trim; - lodash.uniqueId = uniqueId; - - // Add aliases. - lodash.each = forEach; - lodash.first = head; - - mixin(lodash, (function() { - var source = {}; - baseForOwn(lodash, function(func, methodName) { - if (!hasOwnProperty.call(lodash.prototype, methodName)) { - source[methodName] = func; - } - }); - return source; - }()), { 'chain': false }); - - /*------------------------------------------------------------------------*/ - - /** - * The semantic version number. - * - * @static - * @memberOf _ - * @type {string} - */ - lodash.VERSION = VERSION; - - // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. - arrayEach(['drop', 'take'], function(methodName, index) { - LazyWrapper.prototype[methodName] = function(n) { - n = n === undefined ? 1 : nativeMax(toInteger(n), 0); - - var result = (this.__filtered__ && !index) - ? new LazyWrapper(this) - : this.clone(); - - if (result.__filtered__) { - result.__takeCount__ = nativeMin(n, result.__takeCount__); - } else { - result.__views__.push({ - 'size': nativeMin(n, MAX_ARRAY_LENGTH), - 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') - }); - } - return result; - }; - - LazyWrapper.prototype[methodName + 'Right'] = function(n) { - return this.reverse()[methodName](n).reverse(); - }; + } + } + return true; + } + + /** + * Performs a deep comparison between two values to determine if they are + * equivalent. + * + * **Note:** This method supports comparing arrays, array buffers, booleans, + * date objects, error objects, maps, numbers, `Object` objects, regexes, + * sets, strings, symbols, and typed arrays. `Object` objects are compared + * by their own, not inherited, enumerable properties. Functions and DOM + * nodes are compared by strict equality, i.e. `===`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to compare. + * @param {*} other The other value to compare. + * @returns {boolean} Returns `true` if the values are equivalent, else `false`. + * @example + * + * var object = { 'a': 1 }; + * var other = { 'a': 1 }; + * + * _.isEqual(object, other); + * // => true + * + * object === other; + * // => false + */ + function isEqual(value, other) { + return baseIsEqual(value, other); + } + + /** + * Checks if `value` is a finite primitive number. + * + * **Note:** This method is based on + * [`Number.isFinite`](https://mdn.io/Number/isFinite). + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a finite number, else `false`. + * @example + * + * _.isFinite(3); + * // => true + * + * _.isFinite(Number.MIN_VALUE); + * // => true + * + * _.isFinite(Infinity); + * // => false + * + * _.isFinite('3'); + * // => false + */ + function isFinite(value) { + return typeof value == 'number' && nativeIsFinite(value); + } + + /** + * Checks if `value` is classified as a `Function` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a function, else `false`. + * @example + * + * _.isFunction(_); + * // => true + * + * _.isFunction(/abc/); + * // => false + */ + function isFunction(value) { + if (!isObject(value)) { + return false; + } + // The use of `Object#toString` avoids issues with the `typeof` operator + // in Safari 9 which returns 'object' for typed arrays and other constructors. + var tag = baseGetTag(value); + return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag; + } + + /** + * Checks if `value` is a valid array-like length. + * + * **Note:** This method is loosely based on + * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. + * @example + * + * _.isLength(3); + * // => true + * + * _.isLength(Number.MIN_VALUE); + * // => false + * + * _.isLength(Infinity); + * // => false + * + * _.isLength('3'); + * // => false + */ + function isLength(value) { + return typeof value == 'number' && + value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; + } + + /** + * Checks if `value` is the + * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types) + * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`) + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is an object, else `false`. + * @example + * + * _.isObject({}); + * // => true + * + * _.isObject([1, 2, 3]); + * // => true + * + * _.isObject(_.noop); + * // => true + * + * _.isObject(null); + * // => false + */ + function isObject(value) { + var type = typeof value; + return value != null && (type == 'object' || type == 'function'); + } + + /** + * Checks if `value` is object-like. A value is object-like if it's not `null` + * and has a `typeof` result of "object". + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is object-like, else `false`. + * @example + * + * _.isObjectLike({}); + * // => true + * + * _.isObjectLike([1, 2, 3]); + * // => true + * + * _.isObjectLike(_.noop); + * // => false + * + * _.isObjectLike(null); + * // => false + */ + function isObjectLike(value) { + return value != null && typeof value == 'object'; + } + + /** + * Checks if `value` is classified as a `Map` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a map, else `false`. + * @example + * + * _.isMap(new Map); + * // => true + * + * _.isMap(new WeakMap); + * // => false + */ + var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap; + + /** + * Checks if `value` is `NaN`. + * + * **Note:** This method is based on + * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as + * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for + * `undefined` and other non-number values. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`. + * @example + * + * _.isNaN(NaN); + * // => true + * + * _.isNaN(new Number(NaN)); + * // => true + * + * isNaN(undefined); + * // => true + * + * _.isNaN(undefined); + * // => false + */ + function isNaN(value) { + // An `NaN` primitive is the only value that is not equal to itself. + // Perform the `toStringTag` check first to avoid errors with some + // ActiveX objects in IE. + return isNumber(value) && value != +value; + } + + /** + * Checks if `value` is `null`. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `null`, else `false`. + * @example + * + * _.isNull(null); + * // => true + * + * _.isNull(void 0); + * // => false + */ + function isNull(value) { + return value === null; + } + + /** + * Checks if `value` is classified as a `Number` primitive or object. + * + * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are + * classified as numbers, use the `_.isFinite` method. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a number, else `false`. + * @example + * + * _.isNumber(3); + * // => true + * + * _.isNumber(Number.MIN_VALUE); + * // => true + * + * _.isNumber(Infinity); + * // => true + * + * _.isNumber('3'); + * // => false + */ + function isNumber(value) { + return typeof value == 'number' || + (isObjectLike(value) && baseGetTag(value) == numberTag); + } + + /** + * Checks if `value` is a plain object, that is, an object created by the + * `Object` constructor or one with a `[[Prototype]]` of `null`. + * + * @static + * @memberOf _ + * @since 0.8.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * _.isPlainObject(new Foo); + * // => false + * + * _.isPlainObject([1, 2, 3]); + * // => false + * + * _.isPlainObject({ 'x': 0, 'y': 0 }); + * // => true + * + * _.isPlainObject(Object.create(null)); + * // => true + */ + function isPlainObject(value) { + if (!isObjectLike(value) || baseGetTag(value) != objectTag) { + return false; + } + var proto = getPrototype(value); + if (proto === null) { + return true; + } + var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor; + return typeof Ctor == 'function' && Ctor instanceof Ctor && + funcToString.call(Ctor) == objectCtorString; + } + + /** + * Checks if `value` is classified as a `RegExp` object. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a regexp, else `false`. + * @example + * + * _.isRegExp(/abc/); + * // => true + * + * _.isRegExp('/abc/'); + * // => false + */ + var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp; + + /** + * Checks if `value` is classified as a `Set` object. + * + * @static + * @memberOf _ + * @since 4.3.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a set, else `false`. + * @example + * + * _.isSet(new Set); + * // => true + * + * _.isSet(new WeakSet); + * // => false + */ + var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet; + + /** + * Checks if `value` is classified as a `String` primitive or object. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a string, else `false`. + * @example + * + * _.isString('abc'); + * // => true + * + * _.isString(1); + * // => false + */ + function isString(value) { + return typeof value == 'string' || + (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag); + } + + /** + * Checks if `value` is classified as a `Symbol` primitive or object. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a symbol, else `false`. + * @example + * + * _.isSymbol(Symbol.iterator); + * // => true + * + * _.isSymbol('abc'); + * // => false + */ + function isSymbol(value) { + return typeof value == 'symbol' || + (isObjectLike(value) && baseGetTag(value) == symbolTag); + } + + /** + * Checks if `value` is classified as a typed array. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is a typed array, else `false`. + * @example + * + * _.isTypedArray(new Uint8Array); + * // => true + * + * _.isTypedArray([]); + * // => false + */ + var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray; + + /** + * Checks if `value` is `undefined`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to check. + * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`. + * @example + * + * _.isUndefined(void 0); + * // => true + * + * _.isUndefined(null); + * // => false + */ + function isUndefined(value) { + return value === undefined; + } + + /** + * Converts `value` to an array. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Lang + * @param {*} value The value to convert. + * @returns {Array} Returns the converted array. + * @example + * + * _.toArray({ 'a': 1, 'b': 2 }); + * // => [1, 2] + * + * _.toArray('abc'); + * // => ['a', 'b', 'c'] + * + * _.toArray(1); + * // => [] + * + * _.toArray(null); + * // => [] + */ + function toArray(value) { + if (!value) { + return []; + } + if (isArrayLike(value)) { + return isString(value) ? stringToArray(value) : copyArray(value); + } + if (symIterator && value[symIterator]) { + return iteratorToArray(value[symIterator]()); + } + var tag = getTag(value), + func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values); + + return func(value); + } + + /** + * Converts `value` to a finite number. + * + * @static + * @memberOf _ + * @since 4.12.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted number. + * @example + * + * _.toFinite(3.2); + * // => 3.2 + * + * _.toFinite(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toFinite(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toFinite('3.2'); + * // => 3.2 + */ + function toFinite(value) { + if (!value) { + return value === 0 ? value : 0; + } + value = toNumber(value); + if (value === INFINITY || value === -INFINITY) { + var sign = (value < 0 ? -1 : 1); + return sign * MAX_INTEGER; + } + return value === value ? value : 0; + } + + /** + * Converts `value` to an integer. + * + * **Note:** This method is loosely based on + * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {number} Returns the converted integer. + * @example + * + * _.toInteger(3.2); + * // => 3 + * + * _.toInteger(Number.MIN_VALUE); + * // => 0 + * + * _.toInteger(Infinity); + * // => 1.7976931348623157e+308 + * + * _.toInteger('3.2'); + * // => 3 + */ + function toInteger(value) { + var result = toFinite(value), + remainder = result % 1; + + return result === result ? (remainder ? result - remainder : result) : 0; + } + + /** + * Converts `value` to a number. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to process. + * @returns {number} Returns the number. + * @example + * + * _.toNumber(3.2); + * // => 3.2 + * + * _.toNumber(Number.MIN_VALUE); + * // => 5e-324 + * + * _.toNumber(Infinity); + * // => Infinity + * + * _.toNumber('3.2'); + * // => 3.2 + */ + function toNumber(value) { + if (typeof value == 'number') { + return value; + } + if (isSymbol(value)) { + return NAN; + } + if (isObject(value)) { + var other = typeof value.valueOf == 'function' ? value.valueOf() : value; + value = isObject(other) ? (other + '') : other; + } + if (typeof value != 'string') { + return value === 0 ? value : +value; + } + value = value.replace(reTrim, ''); + var isBinary = reIsBinary.test(value); + return (isBinary || reIsOctal.test(value)) + ? freeParseInt(value.slice(2), isBinary ? 2 : 8) + : (reIsBadHex.test(value) ? NAN : +value); + } + + /** + * Converts `value` to a plain object flattening inherited enumerable string + * keyed properties of `value` to own properties of the plain object. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {Object} Returns the converted plain object. + * @example + * + * function Foo() { + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.assign({ 'a': 1 }, new Foo); + * // => { 'a': 1, 'b': 2 } + * + * _.assign({ 'a': 1 }, _.toPlainObject(new Foo)); + * // => { 'a': 1, 'b': 2, 'c': 3 } + */ + function toPlainObject(value) { + return copyObject(value, keysIn(value)); + } + + /** + * Converts `value` to a string. An empty string is returned for `null` + * and `undefined` values. The sign of `-0` is preserved. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Lang + * @param {*} value The value to convert. + * @returns {string} Returns the converted string. + * @example + * + * _.toString(null); + * // => '' + * + * _.toString(-0); + * // => '-0' + * + * _.toString([1, 2, 3]); + * // => '1,2,3' + */ + function toString(value) { + return value == null ? '' : baseToString(value); + } + + /*------------------------------------------------------------------------*/ + + /** + * This method is like `_.assign` except that it iterates over own and + * inherited source properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @alias extend + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.assign + * @example + * + * function Foo() { + * this.a = 1; + * } + * + * function Bar() { + * this.c = 3; + * } + * + * Foo.prototype.b = 2; + * Bar.prototype.d = 4; + * + * _.assignIn({ 'a': 0 }, new Foo, new Bar); + * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 } + */ + var assignIn = createAssigner(function(object, source) { + copyObject(source, keysIn(source), object); + }); + + /** + * Creates an object that inherits from the `prototype` object. If a + * `properties` object is given, its own enumerable string keyed properties + * are assigned to the created object. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Object + * @param {Object} prototype The object to inherit from. + * @param {Object} [properties] The properties to assign to the object. + * @returns {Object} Returns the new object. + * @example + * + * function Shape() { + * this.x = 0; + * this.y = 0; + * } + * + * function Circle() { + * Shape.call(this); + * } + * + * Circle.prototype = _.create(Shape.prototype, { + * 'constructor': Circle + * }); + * + * var circle = new Circle; + * circle instanceof Circle; + * // => true + * + * circle instanceof Shape; + * // => true + */ + function create(prototype, properties) { + var result = baseCreate(prototype); + return properties == null ? result : baseAssign(result, properties); + } + + /** + * Assigns own and inherited enumerable string keyed properties of source + * objects to the destination object for all destination properties that + * resolve to `undefined`. Source objects are applied from left to right. + * Once a property is set, additional values of the same property are ignored. + * + * **Note:** This method mutates `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaultsDeep + * @example + * + * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 }); + * // => { 'a': 1, 'b': 2 } + */ + var defaults = baseRest(function(object, sources) { + object = Object(object); + + var index = -1; + var length = sources.length; + var guard = length > 2 ? sources[2] : undefined; + + if (guard && isIterateeCall(sources[0], sources[1], guard)) { + length = 1; + } + + while (++index < length) { + var source = sources[index]; + var props = keysIn(source); + var propsIndex = -1; + var propsLength = props.length; + + while (++propsIndex < propsLength) { + var key = props[propsIndex]; + var value = object[key]; + + if (value === undefined || + (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) { + object[key] = source[key]; + } + } + } + + return object; + }); + + /** + * This method is like `_.defaults` except that it recursively assigns + * default properties. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 3.10.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @see _.defaults + * @example + * + * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } }); + * // => { 'a': { 'b': 2, 'c': 3 } } + */ + var defaultsDeep = baseRest(function(args) { + args.push(undefined, customDefaultsMerge); + return apply(mergeWith, undefined, args); + }); + + /** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ + function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); + } + + /** + * This method is like `_.findKey` except that it iterates over elements of + * a collection in the opposite order. + * + * @static + * @memberOf _ + * @since 2.0.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findLastKey(users, function(o) { return o.age < 40; }); + * // => returns 'pebbles' assuming `_.findKey` returns 'barney' + * + * // The `_.matches` iteratee shorthand. + * _.findLastKey(users, { 'age': 36, 'active': true }); + * // => 'barney' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findLastKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findLastKey(users, 'active'); + * // => 'pebbles' + */ + function findLastKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwnRight); + } + + /** + * Gets the value at `path` of `object`. If the resolved value is + * `undefined`, the `defaultValue` is returned in its place. + * + * @static + * @memberOf _ + * @since 3.7.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to get. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c': 3 } }] }; + * + * _.get(object, 'a[0].b.c'); + * // => 3 + * + * _.get(object, ['a', '0', 'b', 'c']); + * // => 3 + * + * _.get(object, 'a.b.c', 'default'); + * // => 'default' + */ + function get(object, path, defaultValue) { + var result = object == null ? undefined : baseGet(object, path); + return result === undefined ? defaultValue : result; + } + + /** + * Checks if `path` is a direct property of `object`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = { 'a': { 'b': 2 } }; + * var other = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.has(object, 'a'); + * // => true + * + * _.has(object, 'a.b'); + * // => true + * + * _.has(object, ['a', 'b']); + * // => true + * + * _.has(other, 'a'); + * // => false + */ + function has(object, path) { + return object != null && hasPath(object, path, baseHas); + } + + /** + * Checks if `path` is a direct or inherited property of `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path to check. + * @returns {boolean} Returns `true` if `path` exists, else `false`. + * @example + * + * var object = _.create({ 'a': _.create({ 'b': 2 }) }); + * + * _.hasIn(object, 'a'); + * // => true + * + * _.hasIn(object, 'a.b'); + * // => true + * + * _.hasIn(object, ['a', 'b']); + * // => true + * + * _.hasIn(object, 'b'); + * // => false + */ + function hasIn(object, path) { + return object != null && hasPath(object, path, baseHasIn); + } + + /** + * Creates an object composed of the inverted keys and values of `object`. + * If `object` contains duplicate values, subsequent values overwrite + * property assignments of previous values. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Object + * @param {Object} object The object to invert. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invert(object); + * // => { '1': 'c', '2': 'b' } + */ + var invert = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + result[value] = key; + }, constant(identity)); + + /** + * This method is like `_.invert` except that the inverted object is generated + * from the results of running each element of `object` thru `iteratee`. The + * corresponding inverted value of each inverted key is an array of keys + * responsible for generating the inverted value. The iteratee is invoked + * with one argument: (value). + * + * @static + * @memberOf _ + * @since 4.1.0 + * @category Object + * @param {Object} object The object to invert. + * @param {Function} [iteratee=_.identity] The iteratee invoked per element. + * @returns {Object} Returns the new inverted object. + * @example + * + * var object = { 'a': 1, 'b': 2, 'c': 1 }; + * + * _.invertBy(object); + * // => { '1': ['a', 'c'], '2': ['b'] } + * + * _.invertBy(object, function(value) { + * return 'group' + value; + * }); + * // => { 'group1': ['a', 'c'], 'group2': ['b'] } + */ + var invertBy = createInverter(function(result, value, key) { + if (value != null && + typeof value.toString != 'function') { + value = nativeObjectToString.call(value); + } + + if (hasOwnProperty.call(result, value)) { + result[value].push(key); + } else { + result[value] = [key]; + } + }, baseIteratee); + + /** + * Creates an array of the own enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. See the + * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys) + * for more details. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keys(new Foo); + * // => ['a', 'b'] (iteration order is not guaranteed) + * + * _.keys('hi'); + * // => ['0', '1'] + */ + function keys(object) { + return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object); + } + + /** + * Creates an array of the own and inherited enumerable property names of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property names. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.keysIn(new Foo); + * // => ['a', 'b', 'c'] (iteration order is not guaranteed) + */ + function keysIn(object) { + return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object); + } + + /** + * This method is like `_.assign` except that it recursively merges own and + * inherited enumerable string keyed properties of source objects into the + * destination object. Source properties that resolve to `undefined` are + * skipped if a destination value exists. Array and plain object properties + * are merged recursively. Other objects and value types are overridden by + * assignment. Source objects are applied from left to right. Subsequent + * sources overwrite property assignments of previous sources. + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 0.5.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} [sources] The source objects. + * @returns {Object} Returns `object`. + * @example + * + * var object = { + * 'a': [{ 'b': 2 }, { 'd': 4 }] + * }; + * + * var other = { + * 'a': [{ 'c': 3 }, { 'e': 5 }] + * }; + * + * _.merge(object, other); + * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] } + */ + var merge = createAssigner(function(object, source, srcIndex) { + baseMerge(object, source, srcIndex); + }); + + /** + * This method is like `_.merge` except that it accepts `customizer` which + * is invoked to produce the merged values of the destination and source + * properties. If `customizer` returns `undefined`, merging is handled by the + * method instead. The `customizer` is invoked with six arguments: + * (objValue, srcValue, key, object, source, stack). + * + * **Note:** This method mutates `object`. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The destination object. + * @param {...Object} sources The source objects. + * @param {Function} customizer The function to customize assigned values. + * @returns {Object} Returns `object`. + * @example + * + * function customizer(objValue, srcValue) { + * if (_.isArray(objValue)) { + * return objValue.concat(srcValue); + * } + * } + * + * var object = { 'a': [1], 'b': [2] }; + * var other = { 'a': [3], 'b': [4] }; + * + * _.mergeWith(object, other, customizer); + * // => { 'a': [1, 3], 'b': [2, 4] } + */ + var mergeWith = createAssigner(function(object, source, srcIndex, customizer) { + baseMerge(object, source, srcIndex, customizer); + }); + + /** + * The opposite of `_.pick`; this method creates an object composed of the + * own and inherited enumerable property paths of `object` that are not omitted. + * + * **Note:** This method is considerably slower than `_.pick`. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to omit. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omit(object, ['a', 'c']); + * // => { 'b': '2' } + */ + var omit = flatRest(function(object, paths) { + var result = {}; + if (object == null) { + return result; + } + var isDeep = false; + paths = arrayMap(paths, function(path) { + path = castPath(path, object); + isDeep || (isDeep = path.length > 1); + return path; }); - - // Add `LazyWrapper` methods that accept an `iteratee` value. - arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { - var type = index + 1, - isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; - - LazyWrapper.prototype[methodName] = function(iteratee) { - var result = this.clone(); - result.__iteratees__.push({ - 'iteratee': getIteratee(iteratee, 3), - 'type': type - }); - result.__filtered__ = result.__filtered__ || isFilter; - return result; - }; + copyObject(object, getAllKeysIn(object), result); + if (isDeep) { + result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone); + } + var length = paths.length; + while (length--) { + baseUnset(result, paths[length]); + } + return result; + }); + + /** + * The opposite of `_.pickBy`; this method creates an object composed of + * the own and inherited enumerable string keyed properties of `object` that + * `predicate` doesn't return truthy for. The predicate is invoked with two + * arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.omitBy(object, _.isNumber); + * // => { 'b': '2' } + */ + function omitBy(object, predicate) { + return pickBy(object, negate(baseIteratee(predicate))); + } + + /** + * Creates an object composed of the picked `object` properties. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The source object. + * @param {...(string|string[])} [paths] The property paths to pick. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pick(object, ['a', 'c']); + * // => { 'a': 1, 'c': 3 } + */ + var pick = flatRest(function(object, paths) { + return object == null ? {} : basePick(object, paths); + }); + + /** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ + function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; }); - - // Add `LazyWrapper` methods for `_.head` and `_.last`. - arrayEach(['head', 'last'], function(methodName, index) { - var takeName = 'take' + (index ? 'Right' : ''); - - LazyWrapper.prototype[methodName] = function() { - return this[takeName](1).value()[0]; - }; + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); }); - - // Add `LazyWrapper` methods for `_.initial` and `_.tail`. - arrayEach(['initial', 'tail'], function(methodName, index) { - var dropName = 'drop' + (index ? '' : 'Right'); - - LazyWrapper.prototype[methodName] = function() { - return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); + } + + /** + * This method is like `_.get` except that if the resolved value is a + * function it's invoked with the `this` binding of its parent object and + * its result is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @param {Array|string} path The path of the property to resolve. + * @param {*} [defaultValue] The value returned for `undefined` resolved values. + * @returns {*} Returns the resolved value. + * @example + * + * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] }; + * + * _.result(object, 'a[0].b.c1'); + * // => 3 + * + * _.result(object, 'a[0].b.c2'); + * // => 4 + * + * _.result(object, 'a[0].b.c3', 'default'); + * // => 'default' + * + * _.result(object, 'a[0].b.c3', _.constant('default')); + * // => 'default' + */ + function result(object, path, defaultValue) { + path = castPath(path, object); + + var index = -1, + length = path.length; + + // Ensure the loop is entered when path is empty. + if (!length) { + length = 1; + object = undefined; + } + while (++index < length) { + var value = object == null ? undefined : object[toKey(path[index])]; + if (value === undefined) { + index = length; + value = defaultValue; + } + object = isFunction(value) ? value.call(object) : value; + } + return object; + } + + /** + * Creates an array of the own enumerable string keyed property values of `object`. + * + * **Note:** Non-object values are coerced to objects. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Object + * @param {Object} object The object to query. + * @returns {Array} Returns the array of property values. + * @example + * + * function Foo() { + * this.a = 1; + * this.b = 2; + * } + * + * Foo.prototype.c = 3; + * + * _.values(new Foo); + * // => [1, 2] (iteration order is not guaranteed) + * + * _.values('hi'); + * // => ['h', 'i'] + */ + function values(object) { + return object == null ? [] : baseValues(object, keys(object)); + } + + /*------------------------------------------------------------------------*/ + + /** + * Clamps `number` within the inclusive `lower` and `upper` bounds. + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Number + * @param {number} number The number to clamp. + * @param {number} [lower] The lower bound. + * @param {number} upper The upper bound. + * @returns {number} Returns the clamped number. + * @example + * + * _.clamp(-10, -5, 5); + * // => -5 + * + * _.clamp(10, -5, 5); + * // => 5 + */ + function clamp(number, lower, upper) { + if (upper === undefined) { + upper = lower; + lower = undefined; + } + if (upper !== undefined) { + upper = toNumber(upper); + upper = upper === upper ? upper : 0; + } + if (lower !== undefined) { + lower = toNumber(lower); + lower = lower === lower ? lower : 0; + } + return baseClamp(toNumber(number), lower, upper); + } + + /** + * Produces a random number between the inclusive `lower` and `upper` bounds. + * If only one argument is provided a number between `0` and the given number + * is returned. If `floating` is `true`, or either `lower` or `upper` are + * floats, a floating-point number is returned instead of an integer. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @memberOf _ + * @since 0.7.0 + * @category Number + * @param {number} [lower=0] The lower bound. + * @param {number} [upper=1] The upper bound. + * @param {boolean} [floating] Specify returning a floating-point number. + * @returns {number} Returns the random number. + * @example + * + * _.random(0, 5); + * // => an integer between 0 and 5 + * + * _.random(5); + * // => also an integer between 0 and 5 + * + * _.random(5, true); + * // => a floating-point number between 0 and 5 + * + * _.random(1.2, 5.2); + * // => a floating-point number between 1.2 and 5.2 + */ + function random(lower, upper, floating) { + if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) { + upper = floating = undefined; + } + if (floating === undefined) { + if (typeof upper == 'boolean') { + floating = upper; + upper = undefined; + } + else if (typeof lower == 'boolean') { + floating = lower; + lower = undefined; + } + } + if (lower === undefined && upper === undefined) { + lower = 0; + upper = 1; + } + else { + lower = toFinite(lower); + if (upper === undefined) { + upper = lower; + lower = 0; + } else { + upper = toFinite(upper); + } + } + if (lower > upper) { + var temp = lower; + lower = upper; + upper = temp; + } + if (floating || lower % 1 || upper % 1) { + var rand = nativeRandom(); + return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper); + } + return baseRandom(lower, upper); + } + + /*------------------------------------------------------------------------*/ + + /** + * Converts the characters "&", "<", ">", '"', and "'" in `string` to their + * corresponding HTML entities. + * + * **Note:** No other characters are escaped. To escape additional + * characters use a third-party library like [_he_](https://mths.be/he). + * + * Though the ">" character is escaped for symmetry, characters like + * ">" and "/" don't need escaping in HTML and have no special meaning + * unless they're part of a tag or unquoted attribute value. See + * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands) + * (under "semi-related fun fact") for more details. + * + * When working with HTML you should always + * [quote attribute values](http://wonko.com/post/html-escaping) to reduce + * XSS vectors. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category String + * @param {string} [string=''] The string to escape. + * @returns {string} Returns the escaped string. + * @example + * + * _.escape('fred, barney, & pebbles'); + * // => 'fred, barney, & pebbles' + */ + function escape(string) { + string = toString(string); + return (string && reHasUnescapedHtml.test(string)) + ? string.replace(reUnescapedHtml, escapeHtmlChar) + : string; + } + + /** + * Removes leading and trailing whitespace or specified characters from `string`. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category String + * @param {string} [string=''] The string to trim. + * @param {string} [chars=whitespace] The characters to trim. + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {string} Returns the trimmed string. + * @example + * + * _.trim(' abc '); + * // => 'abc' + * + * _.trim('-_-abc-_-', '_-'); + * // => 'abc' + * + * _.map([' foo ', ' bar '], _.trim); + * // => ['foo', 'bar'] + */ + function trim(string, chars, guard) { + string = toString(string); + if (string && (guard || chars === undefined)) { + return string.replace(reTrim, ''); + } + if (!string || !(chars = baseToString(chars))) { + return string; + } + var strSymbols = stringToArray(string), + chrSymbols = stringToArray(chars), + start = charsStartIndex(strSymbols, chrSymbols), + end = charsEndIndex(strSymbols, chrSymbols) + 1; + + return castSlice(strSymbols, start, end).join(''); + } + + /*------------------------------------------------------------------------*/ + + /** + * Creates a function that returns `value`. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {*} value The value to return from the new function. + * @returns {Function} Returns the new constant function. + * @example + * + * var objects = _.times(2, _.constant({ 'a': 1 })); + * + * console.log(objects); + * // => [{ 'a': 1 }, { 'a': 1 }] + * + * console.log(objects[0] === objects[1]); + * // => true + */ + function constant(value) { + return function() { + return value; + }; + } + + /** + * This method returns the first argument it receives. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {*} value Any value. + * @returns {*} Returns `value`. + * @example + * + * var object = { 'a': 1 }; + * + * console.log(_.identity(object) === object); + * // => true + */ + function identity(value) { + return value; + } + + /** + * Creates a function that invokes `func` with the arguments of the created + * function. If `func` is a property name, the created function returns the + * property value for a given element. If `func` is an array or object, the + * created function returns `true` for elements that contain the equivalent + * source properties, otherwise it returns `false`. + * + * @static + * @since 4.0.0 + * @memberOf _ + * @category Util + * @param {*} [func=_.identity] The value to convert to a callback. + * @returns {Function} Returns the callback. + * @example + * + * var users = [ + * { 'user': 'barney', 'age': 36, 'active': true }, + * { 'user': 'fred', 'age': 40, 'active': false } + * ]; + * + * // The `_.matches` iteratee shorthand. + * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true })); + * // => [{ 'user': 'barney', 'age': 36, 'active': true }] + * + * // The `_.matchesProperty` iteratee shorthand. + * _.filter(users, _.iteratee(['user', 'fred'])); + * // => [{ 'user': 'fred', 'age': 40 }] + * + * // The `_.property` iteratee shorthand. + * _.map(users, _.iteratee('user')); + * // => ['barney', 'fred'] + * + * // Create custom iteratee shorthands. + * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) { + * return !_.isRegExp(func) ? iteratee(func) : function(string) { + * return func.test(string); + * }; + * }); + * + * _.filter(['abc', 'def'], /ef/); + * // => ['def'] + */ + function iteratee(func) { + return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG)); + } + + /** + * Creates a function that performs a partial deep comparison between a given + * object and `source`, returning `true` if the given object has equivalent + * property values, else `false`. + * + * **Note:** The created function is equivalent to `_.isMatch` with `source` + * partially applied. + * + * Partial comparisons will match empty array and empty object `source` + * values against any array or object value, respectively. See `_.isEqual` + * for a list of supported value comparisons. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Util + * @param {Object} source The object of property values to match. + * @returns {Function} Returns the new spec function. + * @example + * + * var objects = [ + * { 'a': 1, 'b': 2, 'c': 3 }, + * { 'a': 4, 'b': 5, 'c': 6 } + * ]; + * + * _.filter(objects, _.matches({ 'a': 4, 'c': 6 })); + * // => [{ 'a': 4, 'b': 5, 'c': 6 }] + */ + function matches(source) { + return baseMatches(baseClone(source, CLONE_DEEP_FLAG)); + } + + /** + * Adds all own enumerable string keyed function properties of a source + * object to the destination object. If `object` is a function, then methods + * are added to its prototype as well. + * + * **Note:** Use `_.runInContext` to create a pristine `lodash` function to + * avoid conflicts caused by modifying the original. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {Function|Object} [object=lodash] The destination object. + * @param {Object} source The object of functions to add. + * @param {Object} [options={}] The options object. + * @param {boolean} [options.chain=true] Specify whether mixins are chainable. + * @returns {Function|Object} Returns `object`. + * @example + * + * function vowels(string) { + * return _.filter(string, function(v) { + * return /[aeiou]/i.test(v); + * }); + * } + * + * _.mixin({ 'vowels': vowels }); + * _.vowels('fred'); + * // => ['e'] + * + * _('fred').vowels().value(); + * // => ['e'] + * + * _.mixin({ 'vowels': vowels }, { 'chain': false }); + * _('fred').vowels(); + * // => ['e'] + */ + function mixin(object, source, options) { + var props = keys(source), + methodNames = baseFunctions(source, props); + + if (options == null && + !(isObject(source) && (methodNames.length || !props.length))) { + options = source; + source = object; + object = this; + methodNames = baseFunctions(source, keys(source)); + } + var chain = !(isObject(options) && 'chain' in options) || !!options.chain, + isFunc = isFunction(object); + + arrayEach(methodNames, function(methodName) { + var func = source[methodName]; + object[methodName] = func; + if (isFunc) { + object.prototype[methodName] = function() { + var chainAll = this.__chain__; + if (chain || chainAll) { + var result = object(this.__wrapped__), + actions = result.__actions__ = copyArray(this.__actions__); + + actions.push({ 'func': func, 'args': arguments, 'thisArg': object }); + result.__chain__ = chainAll; + return result; + } + return func.apply(object, arrayPush([this.value()], arguments)); }; + } }); - LazyWrapper.prototype.compact = function() { - return this.filter(identity); + return object; + } + + /** + * Reverts the `_` variable to its previous value and returns a reference to + * the `lodash` function. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @returns {Function} Returns the `lodash` function. + * @example + * + * var lodash = _.noConflict(); + */ + function noConflict() { + if (root._ === this) { + root._ = oldDash; + } + return this; + } + + /** + * This method returns `undefined`. + * + * @static + * @memberOf _ + * @since 2.3.0 + * @category Util + * @example + * + * _.times(2, _.noop); + * // => [undefined, undefined] + */ + function noop() { + // No operation performed. + } + + /** + * Creates a function that returns the value at `path` of a given object. + * + * @static + * @memberOf _ + * @since 2.4.0 + * @category Util + * @param {Array|string} path The path of the property to get. + * @returns {Function} Returns the new accessor function. + * @example + * + * var objects = [ + * { 'a': { 'b': 2 } }, + * { 'a': { 'b': 1 } } + * ]; + * + * _.map(objects, _.property('a.b')); + * // => [2, 1] + * + * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b'); + * // => [1, 2] + */ + function property(path) { + return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path); + } + + /** + * Creates an array of numbers (positive and/or negative) progressing from + * `start` up to, but not including, `end`. A step of `-1` is used if a negative + * `start` is specified without an `end` or `step`. If `end` is not specified, + * it's set to `start` with `start` then set to `0`. + * + * **Note:** JavaScript follows the IEEE-754 standard for resolving + * floating-point values which can produce unexpected results. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {number} [start=0] The start of the range. + * @param {number} end The end of the range. + * @param {number} [step=1] The value to increment or decrement by. + * @returns {Array} Returns the range of numbers. + * @see _.inRange, _.rangeRight + * @example + * + * _.range(4); + * // => [0, 1, 2, 3] + * + * _.range(-4); + * // => [0, -1, -2, -3] + * + * _.range(1, 5); + * // => [1, 2, 3, 4] + * + * _.range(0, 20, 5); + * // => [0, 5, 10, 15] + * + * _.range(0, -4, -1); + * // => [0, -1, -2, -3] + * + * _.range(1, 4, 0); + * // => [1, 1, 1] + * + * _.range(0); + * // => [] + */ + var range = createRange(); + + /** + * This method returns a new empty array. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {Array} Returns the new empty array. + * @example + * + * var arrays = _.times(2, _.stubArray); + * + * console.log(arrays); + * // => [[], []] + * + * console.log(arrays[0] === arrays[1]); + * // => false + */ + function stubArray() { + return []; + } + + /** + * This method returns `false`. + * + * @static + * @memberOf _ + * @since 4.13.0 + * @category Util + * @returns {boolean} Returns `false`. + * @example + * + * _.times(2, _.stubFalse); + * // => [false, false] + */ + function stubFalse() { + return false; + } + + /** + * Generates a unique ID. If `prefix` is given, the ID is appended to it. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Util + * @param {string} [prefix=''] The value to prefix the ID with. + * @returns {string} Returns the unique ID. + * @example + * + * _.uniqueId('contact_'); + * // => 'contact_104' + * + * _.uniqueId(); + * // => '105' + */ + function uniqueId(prefix) { + var id = ++idCounter; + return toString(prefix) + id; + } + + /*------------------------------------------------------------------------*/ + + /** + * Computes the maximum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the maximum value. + * @example + * + * _.max([4, 2, 8, 6]); + * // => 8 + * + * _.max([]); + * // => undefined + */ + function max(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseGt) + : undefined; + } + + /** + * Computes the minimum value of `array`. If `array` is empty or falsey, + * `undefined` is returned. + * + * @static + * @since 0.1.0 + * @memberOf _ + * @category Math + * @param {Array} array The array to iterate over. + * @returns {*} Returns the minimum value. + * @example + * + * _.min([4, 2, 8, 6]); + * // => 2 + * + * _.min([]); + * // => undefined + */ + function min(array) { + return (array && array.length) + ? baseExtremum(array, identity, baseLt) + : undefined; + } + + /*------------------------------------------------------------------------*/ + + // Add methods that return wrapped values in chain sequences. + lodash.assignIn = assignIn; + lodash.before = before; + lodash.bind = bind; + lodash.chain = chain; + lodash.compact = compact; + lodash.concat = concat; + lodash.countBy = countBy; + lodash.create = create; + lodash.debounce = debounce; + lodash.defaults = defaults; + lodash.defaultsDeep = defaultsDeep; + lodash.defer = defer; + lodash.delay = delay; + lodash.difference = difference; + lodash.drop = drop; + lodash.filter = filter; + lodash.flatten = flatten; + lodash.flattenDeep = flattenDeep; + lodash.initial = initial; + lodash.intersection = intersection; + lodash.invert = invert; + lodash.invertBy = invertBy; + lodash.iteratee = iteratee; + lodash.keys = keys; + lodash.map = map; + lodash.matches = matches; + lodash.merge = merge; + lodash.mixin = mixin; + lodash.negate = negate; + lodash.omit = omit; + lodash.omitBy = omitBy; + lodash.once = once; + lodash.pick = pick; + lodash.range = range; + lodash.reject = reject; + lodash.rest = rest; + lodash.slice = slice; + lodash.sortBy = sortBy; + lodash.take = take; + lodash.takeRight = takeRight; + lodash.tap = tap; + lodash.throttle = throttle; + lodash.thru = thru; + lodash.toArray = toArray; + lodash.union = union; + lodash.uniq = uniq; + lodash.uniqBy = uniqBy; + lodash.unzip = unzip; + lodash.values = values; + lodash.without = without; + lodash.zip = zip; + lodash.zipObject = zipObject; + + // Add aliases. + lodash.extend = assignIn; + + // Add methods to `lodash.prototype`. + mixin(lodash, lodash); + + /*------------------------------------------------------------------------*/ + + // Add methods that return unwrapped values in chain sequences. + lodash.clamp = clamp; + lodash.clone = clone; + lodash.cloneDeep = cloneDeep; + lodash.escape = escape; + lodash.every = every; + lodash.find = find; + lodash.findIndex = findIndex; + lodash.findKey = findKey; + lodash.findLastIndex = findLastIndex; + lodash.findLastKey = findLastKey; + lodash.forEach = forEach; + lodash.get = get; + lodash.has = has; + lodash.head = head; + lodash.identity = identity; + lodash.indexOf = indexOf; + lodash.isArguments = isArguments; + lodash.isArray = isArray; + lodash.isArrayLike = isArrayLike; + lodash.isBoolean = isBoolean; + lodash.isDate = isDate; + lodash.isEmpty = isEmpty; + lodash.isEqual = isEqual; + lodash.isFinite = isFinite; + lodash.isFunction = isFunction; + lodash.isNaN = isNaN; + lodash.isNull = isNull; + lodash.isNumber = isNumber; + lodash.isObject = isObject; + lodash.isPlainObject = isPlainObject; + lodash.isRegExp = isRegExp; + lodash.isString = isString; + lodash.isUndefined = isUndefined; + lodash.last = last; + lodash.max = max; + lodash.min = min; + lodash.noConflict = noConflict; + lodash.noop = noop; + lodash.random = random; + lodash.reduce = reduce; + lodash.result = result; + lodash.size = size; + lodash.some = some; + lodash.trim = trim; + lodash.uniqueId = uniqueId; + + // Add aliases. + lodash.each = forEach; + lodash.first = head; + + mixin(lodash, (function() { + var source = {}; + baseForOwn(lodash, function(func, methodName) { + if (!hasOwnProperty.call(lodash.prototype, methodName)) { + source[methodName] = func; + } + }); + return source; + }()), { 'chain': false }); + + /*------------------------------------------------------------------------*/ + + /** + * The semantic version number. + * + * @static + * @memberOf _ + * @type {string} + */ + lodash.VERSION = VERSION; + + // Add `LazyWrapper` methods for `_.drop` and `_.take` variants. + arrayEach(['drop', 'take'], function(methodName, index) { + LazyWrapper.prototype[methodName] = function(n) { + n = n === undefined ? 1 : nativeMax(toInteger(n), 0); + + var result = (this.__filtered__ && !index) + ? new LazyWrapper(this) + : this.clone(); + + if (result.__filtered__) { + result.__takeCount__ = nativeMin(n, result.__takeCount__); + } else { + result.__views__.push({ + 'size': nativeMin(n, MAX_ARRAY_LENGTH), + 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') + }); + } + return result; }; - LazyWrapper.prototype.find = function(predicate) { - return this.filter(predicate).head(); + LazyWrapper.prototype[methodName + 'Right'] = function(n) { + return this.reverse()[methodName](n).reverse(); }; - - LazyWrapper.prototype.findLast = function(predicate) { - return this.reverse().find(predicate); + }); + + // Add `LazyWrapper` methods that accept an `iteratee` value. + arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) { + var type = index + 1, + isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG; + + LazyWrapper.prototype[methodName] = function(iteratee) { + var result = this.clone(); + result.__iteratees__.push({ + 'iteratee': getIteratee(iteratee, 3), + 'type': type + }); + result.__filtered__ = result.__filtered__ || isFilter; + return result; }; + }); - LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { - if (typeof path == 'function') { - return new LazyWrapper(this); - } - return this.map(function(value) { - return baseInvoke(value, path, args); - }); - }); + // Add `LazyWrapper` methods for `_.head` and `_.last`. + arrayEach(['head', 'last'], function(methodName, index) { + var takeName = 'take' + (index ? 'Right' : ''); - LazyWrapper.prototype.reject = function(predicate) { - return this.filter(negate(getIteratee(predicate))); + LazyWrapper.prototype[methodName] = function() { + return this[takeName](1).value()[0]; }; + }); - LazyWrapper.prototype.slice = function(start, end) { - start = toInteger(start); - - var result = this; - if (result.__filtered__ && (start > 0 || end < 0)) { - return new LazyWrapper(result); - } - if (start < 0) { - result = result.takeRight(-start); - } else if (start) { - result = result.drop(start); - } - if (end !== undefined) { - end = toInteger(end); - result = end < 0 ? result.dropRight(-end) : result.take(end - start); - } - return result; - }; + // Add `LazyWrapper` methods for `_.initial` and `_.tail`. + arrayEach(['initial', 'tail'], function(methodName, index) { + var dropName = 'drop' + (index ? '' : 'Right'); - LazyWrapper.prototype.takeRightWhile = function(predicate) { - return this.reverse().takeWhile(predicate).reverse(); + LazyWrapper.prototype[methodName] = function() { + return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1); }; + }); - LazyWrapper.prototype.toArray = function() { - return this.take(MAX_ARRAY_LENGTH); - }; + LazyWrapper.prototype.compact = function() { + return this.filter(identity); + }; - // Add `LazyWrapper` methods to `lodash.prototype`. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), - isTaker = /^(?:head|last)$/.test(methodName), - lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], - retUnwrapped = isTaker || /^find/.test(methodName); + LazyWrapper.prototype.find = function(predicate) { + return this.filter(predicate).head(); + }; - if (!lodashFunc) { - return; - } - lodash.prototype[methodName] = function() { - var value = this.__wrapped__, - args = isTaker ? [1] : arguments, - isLazy = value instanceof LazyWrapper, - iteratee = args[0], - useLazy = isLazy || isArray(value); - - var interceptor = function(value) { - var result = lodashFunc.apply(lodash, arrayPush([value], args)); - return (isTaker && chainAll) ? result[0] : result; - }; - - if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { - // Avoid lazy use if the iteratee has a "length" value other than `1`. - isLazy = useLazy = false; - } - var chainAll = this.__chain__, - isHybrid = !!this.__actions__.length, - isUnwrapped = retUnwrapped && !chainAll, - onlyLazy = isLazy && !isHybrid; - - if (!retUnwrapped && useLazy) { - value = onlyLazy ? value : new LazyWrapper(this); - var result = func.apply(value, args); - result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); - return new LodashWrapper(result, chainAll); - } - if (isUnwrapped && onlyLazy) { - return func.apply(this, args); - } - result = this.thru(interceptor); - return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; - }; - }); + LazyWrapper.prototype.findLast = function(predicate) { + return this.reverse().find(predicate); + }; - // Add `Array` methods to `lodash.prototype`. - arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { - var func = arrayProto[methodName], - chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', - retUnwrapped = /^(?:pop|shift)$/.test(methodName); - - lodash.prototype[methodName] = function() { - var args = arguments; - if (retUnwrapped && !this.__chain__) { - var value = this.value(); - return func.apply(isArray(value) ? value : [], args); - } - return this[chainName](function(value) { - return func.apply(isArray(value) ? value : [], args); - }); - }; + LazyWrapper.prototype.invokeMap = baseRest(function(path, args) { + if (typeof path == 'function') { + return new LazyWrapper(this); + } + return this.map(function(value) { + return baseInvoke(value, path, args); }); - - // Map minified method names to their real names. - baseForOwn(LazyWrapper.prototype, function(func, methodName) { - var lodashFunc = lodash[methodName]; - if (lodashFunc) { - var key = (lodashFunc.name + ''), - names = realNames[key] || (realNames[key] = []); - - names.push({ 'name': methodName, 'func': lodashFunc }); - } + }); + + LazyWrapper.prototype.reject = function(predicate) { + return this.filter(negate(getIteratee(predicate))); + }; + + LazyWrapper.prototype.slice = function(start, end) { + start = toInteger(start); + + var result = this; + if (result.__filtered__ && (start > 0 || end < 0)) { + return new LazyWrapper(result); + } + if (start < 0) { + result = result.takeRight(-start); + } else if (start) { + result = result.drop(start); + } + if (end !== undefined) { + end = toInteger(end); + result = end < 0 ? result.dropRight(-end) : result.take(end - start); + } + return result; + }; + + LazyWrapper.prototype.takeRightWhile = function(predicate) { + return this.reverse().takeWhile(predicate).reverse(); + }; + + LazyWrapper.prototype.toArray = function() { + return this.take(MAX_ARRAY_LENGTH); + }; + + // Add `LazyWrapper` methods to `lodash.prototype`. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName), + isTaker = /^(?:head|last)$/.test(methodName), + lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName], + retUnwrapped = isTaker || /^find/.test(methodName); + + if (!lodashFunc) { + return; + } + lodash.prototype[methodName] = function() { + var value = this.__wrapped__, + args = isTaker ? [1] : arguments, + isLazy = value instanceof LazyWrapper, + iteratee = args[0], + useLazy = isLazy || isArray(value); + + var interceptor = function(value) { + var result = lodashFunc.apply(lodash, arrayPush([value], args)); + return (isTaker && chainAll) ? result[0] : result; + }; + + if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) { + // Avoid lazy use if the iteratee has a "length" value other than `1`. + isLazy = useLazy = false; + } + var chainAll = this.__chain__, + isHybrid = !!this.__actions__.length, + isUnwrapped = retUnwrapped && !chainAll, + onlyLazy = isLazy && !isHybrid; + + if (!retUnwrapped && useLazy) { + value = onlyLazy ? value : new LazyWrapper(this); + var result = func.apply(value, args); + result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined }); + return new LodashWrapper(result, chainAll); + } + if (isUnwrapped && onlyLazy) { + return func.apply(this, args); + } + result = this.thru(interceptor); + return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result; + }; + }); + + // Add `Array` methods to `lodash.prototype`. + arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) { + var func = arrayProto[methodName], + chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru', + retUnwrapped = /^(?:pop|shift)$/.test(methodName); + + lodash.prototype[methodName] = function() { + var args = arguments; + if (retUnwrapped && !this.__chain__) { + var value = this.value(); + return func.apply(isArray(value) ? value : [], args); + } + return this[chainName](function(value) { + return func.apply(isArray(value) ? value : [], args); + }); + }; + }); + + // Map minified method names to their real names. + baseForOwn(LazyWrapper.prototype, function(func, methodName) { + var lodashFunc = lodash[methodName]; + if (lodashFunc) { + var key = (lodashFunc.name + ''), + names = realNames[key] || (realNames[key] = []); + + names.push({ 'name': methodName, 'func': lodashFunc }); + } + }); + + realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ + 'name': 'wrapper', + 'func': undefined + }]; + + // Add methods to `LazyWrapper`. + LazyWrapper.prototype.clone = lazyClone; + LazyWrapper.prototype.reverse = lazyReverse; + LazyWrapper.prototype.value = lazyValue; + + // Add lazy aliases. + lodash.prototype.first = lodash.prototype.head; + + if (symIterator) { + lodash.prototype[symIterator] = wrapperToIterator; + } + + /*--------------------------------------------------------------------------*/ + + // Some AMD build optimizers, like r.js, check for condition patterns like: + if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { + // Expose Lodash on the global object to prevent errors when Lodash is + // loaded by a script tag in the presence of an AMD loader. + // See http://requirejs.org/docs/errors.html#mismatch for more details. + // Use `_.noConflict` to remove Lodash from the global object. + root._ = lodash; + + // Define as an anonymous module so, through path mapping, it can be + // referenced as the "underscore" module. + define(function() { + return lodash; }); - - realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{ - 'name': 'wrapper', - 'func': undefined - }]; - - // Add methods to `LazyWrapper`. - LazyWrapper.prototype.clone = lazyClone; - LazyWrapper.prototype.reverse = lazyReverse; - LazyWrapper.prototype.value = lazyValue; - - // Add lazy aliases. - lodash.prototype.first = lodash.prototype.head; - - if (symIterator) { - lodash.prototype[symIterator] = wrapperToIterator; - } - - /*--------------------------------------------------------------------------*/ - - // Some AMD build optimizers, like r.js, check for condition patterns like: - if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) { - // Expose Lodash on the global object to prevent errors when Lodash is - // loaded by a script tag in the presence of an AMD loader. - // See http://requirejs.org/docs/errors.html#mismatch for more details. - // Use `_.noConflict` to remove Lodash from the global object. - root._ = lodash; - - // Define as an anonymous module so, through path mapping, it can be - // referenced as the "underscore" module. - define(function() { - return lodash; - }); - } - // Check for `exports` after `define` in case a build optimizer adds it. - else if (freeModule) { - // Export for Node.js. - (freeModule.exports = lodash)._ = lodash; - // Export for CommonJS support. - freeExports._ = lodash; - } - else { - // Export to the global object. - root._ = lodash; - } + } + // Check for `exports` after `define` in case a build optimizer adds it. + else if (freeModule) { + // Export for Node.js. + (freeModule.exports = lodash)._ = lodash; + // Export for CommonJS support. + freeExports._ = lodash; + } + else { + // Export to the global object. + root._ = lodash; + } }.call(this));