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252 lines
7.7 KiB
252 lines
7.7 KiB
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// Internet Explorer 8 and older does not support Array.indexOf, so we define
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// it here in that case.
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// http://soledadpenades.com/2007/05/17/arrayindexof-in-internet-explorer/
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if(!Array.prototype.indexOf) {
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Array.prototype.indexOf = function(obj){
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for(var i = 0; i < this.length; i++){
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if(this[i] == obj){
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return i;
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}
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}
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return -1;
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};
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try {
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console.log("Warning: Ancient browser detected. Please update your browser");
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}
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catch (err) {
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}
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}
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// Internet Explorer 8 and older does not support Array.forEach, so we define
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// it here in that case.
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/forEach
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if (!Array.prototype.forEach) {
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Array.prototype.forEach = function(fn, scope) {
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for(var i = 0, len = this.length; i < len; ++i) {
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fn.call(scope || this, this[i], i, this);
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}
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}
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}
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// Internet Explorer 8 and older does not support Array.map, so we define it
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// here in that case.
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/map
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// Production steps of ECMA-262, Edition 5, 15.4.4.19
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// Reference: http://es5.github.com/#x15.4.4.19
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if (!Array.prototype.map) {
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Array.prototype.map = function(callback, thisArg) {
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var T, A, k;
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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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// 1. Let O be the result of calling ToObject passing the |this| value as the argument.
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var O = Object(this);
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// 2. Let lenValue be the result of calling the Get 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 IsCallable(callback) is false, throw a TypeError exception.
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// See: http://es5.github.com/#x9.11
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if (typeof callback !== "function") {
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throw new TypeError(callback + " is not a function");
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}
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// 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
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if (thisArg) {
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T = thisArg;
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}
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// 6. Let A be a new array created as if by the expression new Array(len) where Array is
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// the standard built-in constructor with that name and len is the value of len.
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A = new Array(len);
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// 7. Let k be 0
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k = 0;
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// 8. Repeat, while k < len
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while(k < len) {
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var kValue, mappedValue;
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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 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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if (k in O) {
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// i. Let kValue be the result of calling the Get internal method of O with argument Pk.
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kValue = O[ k ];
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// ii. Let mappedValue be the result of calling the Call internal method of callback
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// with T as the this value and argument list containing kValue, k, and O.
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mappedValue = callback.call(T, kValue, k, O);
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// iii. Call the DefineOwnProperty internal method of A with arguments
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// Pk, Property Descriptor {Value: mappedValue, : true, Enumerable: true, Configurable: true},
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// and false.
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// In browsers that support Object.defineProperty, use the following:
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// Object.defineProperty(A, Pk, { value: mappedValue, writable: true, enumerable: true, configurable: true });
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// For best browser support, use the following:
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A[ k ] = mappedValue;
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}
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// d. Increase k by 1.
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k++;
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}
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// 9. return A
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return A;
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};
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}
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// Internet Explorer 8 and older does not support Array.filter, so we define it
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// here in that case.
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/filter
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if (!Array.prototype.filter) {
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Array.prototype.filter = function(fun /*, thisp */) {
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"use strict";
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if (this == null) {
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throw new TypeError();
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}
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var t = Object(this);
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var len = t.length >>> 0;
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if (typeof fun != "function") {
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throw new TypeError();
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}
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var res = [];
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var thisp = arguments[1];
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for (var i = 0; i < len; i++) {
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if (i in t) {
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var val = t[i]; // in case fun mutates this
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if (fun.call(thisp, val, i, t))
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res.push(val);
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}
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}
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return res;
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};
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}
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// Internet Explorer 8 and older does not support Object.keys, so we define it
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// here in that case.
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/keys
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if (!Object.keys) {
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Object.keys = (function () {
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var hasOwnProperty = Object.prototype.hasOwnProperty,
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hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'),
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dontEnums = [
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'toString',
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'toLocaleString',
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'valueOf',
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'hasOwnProperty',
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'isPrototypeOf',
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'propertyIsEnumerable',
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'constructor'
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],
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dontEnumsLength = dontEnums.length;
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return function (obj) {
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if (typeof obj !== 'object' && typeof obj !== 'function' || obj === null) {
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throw new TypeError('Object.keys called on non-object');
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}
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var result = [];
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for (var prop in obj) {
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if (hasOwnProperty.call(obj, prop)) result.push(prop);
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}
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if (hasDontEnumBug) {
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for (var i=0; i < dontEnumsLength; i++) {
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if (hasOwnProperty.call(obj, dontEnums[i])) result.push(dontEnums[i]);
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}
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}
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return result;
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}
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})()
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}
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// Internet Explorer 8 and older does not support Array.isArray,
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// so we define it here in that case.
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Array/isArray
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if(!Array.isArray) {
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Array.isArray = function (vArg) {
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return Object.prototype.toString.call(vArg) === "[object Array]";
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};
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}
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// Internet Explorer 8 and older does not support Function.bind,
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// so we define it here in that case.
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Function/bind
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if (!Function.prototype.bind) {
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Function.prototype.bind = function (oThis) {
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if (typeof this !== "function") {
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// closest thing possible to the ECMAScript 5 internal IsCallable function
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throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
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}
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var aArgs = Array.prototype.slice.call(arguments, 1),
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fToBind = this,
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fNOP = function () {},
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fBound = function () {
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return fToBind.apply(this instanceof fNOP && oThis
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? this
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: oThis,
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aArgs.concat(Array.prototype.slice.call(arguments)));
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};
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fNOP.prototype = this.prototype;
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fBound.prototype = new fNOP();
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return fBound;
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};
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}
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/create
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if (!Object.create) {
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Object.create = function (o) {
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if (arguments.length > 1) {
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throw new Error('Object.create implementation only accepts the first parameter.');
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}
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function F() {}
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F.prototype = o;
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return new F();
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};
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}
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
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if (!Function.prototype.bind) {
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Function.prototype.bind = function (oThis) {
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if (typeof this !== "function") {
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// closest thing possible to the ECMAScript 5 internal IsCallable function
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throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
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}
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var aArgs = Array.prototype.slice.call(arguments, 1),
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fToBind = this,
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fNOP = function () {},
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fBound = function () {
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return fToBind.apply(this instanceof fNOP && oThis
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? this
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: oThis,
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aArgs.concat(Array.prototype.slice.call(arguments)));
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};
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fNOP.prototype = this.prototype;
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fBound.prototype = new fNOP();
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return fBound;
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};
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}
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