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175 lines
5.1 KiB
175 lines
5.1 KiB
7 years ago
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// Production steps of ECMA-262, Edition 5, 15.4.4.14
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// Reference: http://es5.github.io/#x15.4.4.14
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if (!Array.prototype.indexOf) {
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Array.prototype.indexOf = function (searchElement, fromIndex) {
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var k;
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// 1. Let o be the result of calling ToObject passing
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// the this value as the argument.
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if (this == null) {
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throw new TypeError('"this" is null or not defined');
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}
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var o = Object(this);
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// 2. Let lenValue be the result of calling the Get
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// internal method of o with the argument "length".
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// 3. Let len be ToUint32(lenValue).
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var len = o.length >>> 0;
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// 4. If len is 0, return -1.
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if (len === 0) {
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return -1;
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}
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// 5. If argument fromIndex was passed let n be
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// ToInteger(fromIndex); else let n be 0.
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var n = fromIndex | 0;
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// 6. If n >= len, return -1.
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if (n >= len) {
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return -1;
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}
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// 7. If n >= 0, then Let k be n.
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// 8. Else, n<0, Let k be len - abs(n).
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// If k is less than 0, then let k be 0.
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k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
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// 9. Repeat, while k < len
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while (k < len) {
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// a. Let Pk be ToString(k).
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// This is implicit for LHS operands of the in operator
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// b. Let kPresent be the result of calling the
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// HasProperty internal method of o with argument Pk.
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// This step can be combined with c
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// c. If kPresent is true, then
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// i. Let elementK be the result of calling the Get
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// internal method of o with the argument ToString(k).
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// ii. Let same be the result of applying the
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// Strict Equality Comparison Algorithm to
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// searchElement and elementK.
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// iii. If same is true, return k.
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if (k in o && o[k] === searchElement) {
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return k;
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8 years ago
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}
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7 years ago
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k++;
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8 years ago
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}
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return -1;
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7 years ago
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};
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8 years ago
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}
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7 years ago
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if (!Array.prototype.lastIndexOf) {
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Array.prototype.lastIndexOf = function (searchElement /*, fromIndex*/) {
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'use strict';
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if (this === void 0 || this === null) {
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throw new TypeError();
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}
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var n, k,
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t = Object(this),
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len = t.length >>> 0;
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if (len === 0) {
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return -1;
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}
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n = len - 1;
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if (arguments.length > 1) {
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n = Number(arguments[1]);
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if (n != n) {
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n = 0;
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}
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else if (n != 0 && n != (1 / 0) && n != -(1 / 0)) {
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n = (n > 0 || -1) * Math.floor(Math.abs(n));
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}
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}
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for (k = n >= 0
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? Math.min(n, len - 1)
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: len - Math.abs(n); k >= 0; k--) {
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if (k in t && t[k] === searchElement) {
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return k;
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8 years ago
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}
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}
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return -1;
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7 years ago
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};
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7 years ago
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}
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/**
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8 years ago
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* 特殊情况
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* Created by wang on 15/6/23.
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*/
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//解决console未定义问题 guy
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window.console = window.console || (function () {
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var c = {};
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c.log = c.warn = c.debug = c.info = c.error = c.time = c.dir = c.profile
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= c.clear = c.exception = c.trace = c.assert = function () {
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};
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return c;
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})();
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/*
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* 前端缓存
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*/
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window.localStorage || (window.localStorage = {
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items: {},
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setItem: function (k, v) {
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BI.Cache.addCookie(k, v);
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},
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getItem: function (k) {
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return BI.Cache.getCookie(k);
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},
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removeItem: function (k) {
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BI.Cache.deleteCookie(k);
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},
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key: function () {
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},
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clear: function () {
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this.items = {};
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}
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7 years ago
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});if (typeof Set !== 'undefined' && Set.toString().match(/native code/)) {
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} else {
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Set = function () {
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this.set = {}
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};
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Set.prototype.has = function (key) {
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return this.set[key] !== undefined;
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};
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Set.prototype.add = function (key) {
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this.set[key] = 1
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};
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Set.prototype.clear = function () {
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this.set = {}
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};
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}//修复ie9下sort方法的bug
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;!function (window) {
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8 years ago
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var ua = window.navigator.userAgent.toLowerCase(),
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reg = /msie|applewebkit.+safari/;
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if (reg.test(ua)) {
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var _sort = Array.prototype.sort;
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Array.prototype.sort = function (fn) {
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if (!!fn && typeof fn === 'function') {
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if (this.length < 2) {
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return this;
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}
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var i = 0, j = i + 1, l = this.length, tmp, r = false, t = 0;
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for (; i < l; i++) {
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for (j = i + 1; j < l; j++) {
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t = fn.call(this, this[i], this[j]);
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r = (typeof t === 'number' ? t :
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!!t ? 1 : 0) > 0;
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if (r === true) {
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tmp = this[i];
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this[i] = this[j];
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this[j] = tmp;
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}
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}
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}
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return this;
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} else {
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return _sort.call(this);
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}
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};
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}
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8 years ago
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}(window);
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