You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
244 lines
7.5 KiB
244 lines
7.5 KiB
// Production steps of ECMA-262, Edition 5, 15.4.4.14 |
|
// Reference: http://es5.github.io/#x15.4.4.14 |
|
if (!Array.prototype.indexOf) { |
|
Array.prototype.indexOf = function (searchElement, fromIndex) { |
|
|
|
var k; |
|
|
|
// 1. Let o be the result of calling ToObject passing |
|
// the this value as the argument. |
|
if (this == null) { |
|
throw new TypeError("\"this\" is null or not defined"); |
|
} |
|
|
|
var o = Object(this); |
|
|
|
// 2. Let lenValue be the result of calling the Get |
|
// internal method of o with the argument "length". |
|
// 3. Let len be ToUint32(lenValue). |
|
var len = o.length >>> 0; |
|
|
|
// 4. If len is 0, return -1. |
|
if (len === 0) { |
|
return -1; |
|
} |
|
|
|
// 5. If argument fromIndex was passed let n be |
|
// ToInteger(fromIndex); else let n be 0. |
|
var n = fromIndex | 0; |
|
|
|
// 6. If n >= len, return -1. |
|
if (n >= len) { |
|
return -1; |
|
} |
|
|
|
// 7. If n >= 0, then Let k be n. |
|
// 8. Else, n<0, Let k be len - abs(n). |
|
// If k is less than 0, then let k be 0. |
|
k = Math.max(n >= 0 ? n : len - Math.abs(n), 0); |
|
|
|
// 9. Repeat, while k < len |
|
while (k < len) { |
|
// a. Let Pk be ToString(k). |
|
// This is implicit for LHS operands of the in operator |
|
// b. Let kPresent be the result of calling the |
|
// HasProperty internal method of o with argument Pk. |
|
// This step can be combined with c |
|
// c. If kPresent is true, then |
|
// i. Let elementK be the result of calling the Get |
|
// internal method of o with the argument ToString(k). |
|
// ii. Let same be the result of applying the |
|
// Strict Equality Comparison Algorithm to |
|
// searchElement and elementK. |
|
// iii. If same is true, return k. |
|
if (k in o && o[k] === searchElement) { |
|
return k; |
|
} |
|
k++; |
|
} |
|
return -1; |
|
}; |
|
} |
|
if (!Array.prototype.lastIndexOf) { |
|
Array.prototype.lastIndexOf = function (searchElement /* , fromIndex*/) { |
|
"use strict"; |
|
|
|
if (this === void 0 || this === null) { |
|
throw new TypeError(); |
|
} |
|
|
|
var n, k, |
|
t = Object(this), |
|
len = t.length >>> 0; |
|
if (len === 0) { |
|
return -1; |
|
} |
|
|
|
n = len - 1; |
|
if (arguments.length > 1) { |
|
n = Number(arguments[1]); |
|
if (n != n) { |
|
n = 0; |
|
} else if (n != 0 && n != (1 / 0) && n != -(1 / 0)) { |
|
n = (n > 0 || -1) * Math.floor(Math.abs(n)); |
|
} |
|
} |
|
|
|
for (k = n >= 0 |
|
? Math.min(n, len - 1) |
|
: len - Math.abs(n); k >= 0; k--) { |
|
if (k in t && t[k] === searchElement) { |
|
return k; |
|
} |
|
} |
|
return -1; |
|
}; |
|
} |
|
/** |
|
* 特殊情况 |
|
* Created by wang on 15/6/23. |
|
*/ |
|
// 解决console未定义问题 guy |
|
window.console = window.console || (function () { |
|
var c = {}; |
|
c.log = c.warn = c.debug = c.info = c.error = c.time = c.dir = c.profile |
|
= c.clear = c.exception = c.trace = c.assert = function () { |
|
}; |
|
return c; |
|
})(); |
|
if (!Function.prototype.bind) { |
|
Function.prototype.bind = function(oThis) { |
|
if (typeof this !== 'function') { |
|
// closest thing possible to the ECMAScript 5 |
|
// internal IsCallable function |
|
throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable'); |
|
} |
|
|
|
var aArgs = Array.prototype.slice.call(arguments, 1), |
|
fToBind = this, |
|
fNOP = function() {}, |
|
fBound = function() { |
|
return fToBind.apply(this instanceof fNOP |
|
? this |
|
: oThis, |
|
// 获取调用时(fBound)的传参.bind 返回的函数入参往往是这么传递的 |
|
aArgs.concat(Array.prototype.slice.call(arguments))); |
|
}; |
|
|
|
// 维护原型关系 |
|
if (this.prototype) { |
|
// Function.prototype doesn't have a prototype property |
|
fNOP.prototype = this.prototype; |
|
} |
|
fBound.prototype = new fNOP(); |
|
|
|
return fBound; |
|
}; |
|
}/* |
|
* 前端缓存 |
|
*/ |
|
window.localStorage || (window.localStorage = { |
|
items: {}, |
|
setItem: function (k, v) { |
|
BI.Cache.addCookie(k, v); |
|
}, |
|
getItem: function (k) { |
|
return BI.Cache.getCookie(k); |
|
}, |
|
removeItem: function (k) { |
|
BI.Cache.deleteCookie(k); |
|
}, |
|
key: function () { |
|
|
|
}, |
|
clear: function () { |
|
this.items = {}; |
|
} |
|
}); |
|
if (!Object.keys) { |
|
Object.keys = function(o) { |
|
if (o !== Object(o)) { |
|
throw new TypeError('Object.keys called on a non-object'); |
|
} |
|
// fix的问题 |
|
var falsy; |
|
var skipArray = { |
|
__ob__: falsy, |
|
$accessors: falsy, |
|
$vbthis: falsy, |
|
$vbsetter: falsy |
|
}; |
|
var k = [], p; |
|
for (p in o) { |
|
if (!(p in skipArray)) { |
|
if (Object.prototype.hasOwnProperty.call(o, p)) { |
|
k.push(p); |
|
} |
|
} |
|
} |
|
return k; |
|
}; |
|
} |
|
|
|
if (!Array.isArray) { |
|
Array.isArray = function(arg) { |
|
return Object.prototype.toString.call(arg) === '[object Array]'; |
|
}; |
|
} |
|
|
|
// https://stackoverflow.com/questions/10919915/ie8-getprototypeof-method |
|
if (typeof Object.getPrototypeOf !== "function") { |
|
Object.getPrototypeOf = "".__proto__ === String.prototype |
|
? function (object) { |
|
return object.__proto__; |
|
} |
|
: function (object) { |
|
// May break if the constructor has been tampered with |
|
return object.constructor.prototype; |
|
}; |
|
}if (typeof Set !== "undefined" && Set.toString().match(/native code/)) { |
|
|
|
} else { |
|
Set = function () { |
|
this.set = {}; |
|
}; |
|
Set.prototype.has = function (key) { |
|
return this.set[key] !== undefined; |
|
}; |
|
Set.prototype.add = function (key) { |
|
this.set[key] = 1; |
|
}; |
|
Set.prototype.clear = function () { |
|
this.set = {}; |
|
}; |
|
}// 修复ie9下sort方法的bug |
|
!function (window) { |
|
var ua = window.navigator.userAgent.toLowerCase(), |
|
reg = /msie|applewebkit.+safari/; |
|
if (reg.test(ua)) { |
|
var _sort = Array.prototype.sort; |
|
Array.prototype.sort = function (fn) { |
|
if (!!fn && typeof fn === "function") { |
|
if (this.length < 2) { |
|
return this; |
|
} |
|
var i = 0, j = i + 1, l = this.length, tmp, r = false, t = 0; |
|
for (; i < l; i++) { |
|
for (j = i + 1; j < l; j++) { |
|
t = fn.call(this, this[i], this[j]); |
|
r = (typeof t === "number" ? t : |
|
t ? 1 : 0) > 0; |
|
if (r === true) { |
|
tmp = this[i]; |
|
this[i] = this[j]; |
|
this[j] = tmp; |
|
} |
|
} |
|
} |
|
return this; |
|
} |
|
return _sort.call(this); |
|
|
|
}; |
|
} |
|
}(window); |