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EugenTepinEugenTepin
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Code transfer
Initial code transfer from https://github.com/EugenTepin/ps-scripting-es5shim
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‎Array/every.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every
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*/
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if (!Array.prototype.every) {
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Array.prototype.every = function(callback, thisArg) {
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var T, k;
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if (this === void 0 || this === null) {
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throw new TypeError('Array.prototype.every called on null or undefined');
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}
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// 1. Let O be the result of calling ToObject passing the this
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// 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
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// 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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if (callback.__class__ !== '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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T = (arguments.length > 1) ? thisArg : void 0;
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// 6. Let k be 0.
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k = 0;
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// 7. Repeat, while k < len
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while (k < len) {
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var kValue;
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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
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// 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
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// of O with argument Pk.
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kValue = O[k];
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// ii. Let testResult be the result of calling the Call internal method
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// of callback with T as the this value and argument list
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// containing kValue, k, and O.
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var testResult = callback.call(T, kValue, k, O);
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// iii. If ToBoolean(testResult) is false, return false.
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if (!testResult) {
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return false;
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}
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}
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k++;
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}
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return true;
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};
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}

‎Array/filter.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
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*/
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if (!Array.prototype.filter) {
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Array.prototype.filter = function(callback, thisArg) {
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if (this === void 0 || this === null) {
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throw new TypeError('Array.prototype.filter called on null or undefined');
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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 (callback.__class__ !== 'Function') {
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throw new TypeError(callback + ' is not a function');
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}
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var res = [];
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var T = (arguments.length > 1) ? thisArg : void 0;
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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];
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// NOTE: Technically this should Object.defineProperty at
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// the next index, as push can be affected by
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// properties on Object.prototype and Array.prototype.
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// But that method's new, and collisions should be
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// rare, so use the more-compatible alternative.
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if (callback.call(T, val, i, t)) {
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res.push(val);
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}
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}
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}
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return res;
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};
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}

‎Array/forEach.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
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*/
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// Production steps of ECMA-262, Edition 5, 15.4.4.18
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// Reference: http://es5.github.io/#x15.4.4.18
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if (!Array.prototype.forEach) {
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Array.prototype.forEach = function(callback, thisArg) {
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if (this === void 0 || this === null) {
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throw new TypeError('Array.prototype.forEach called on null or undefined');
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}
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// 1. Let O be the result of calling toObject() passing the
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// |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
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// 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 (callback.__class__ !== '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
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// T be undefined.
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var T = (arguments.length > 1) ? thisArg : void 0;
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// 6. Let k be 0
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//k = 0;
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// 7. Repeat, while k < len
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for (var k = 0; k < len; k++) {
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var kValue;
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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
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// 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
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// method of O with argument Pk.
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kValue = O[k];
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// ii. Call the Call internal method of callback with T as
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// the this value and argument list containing kValue, k, and O.
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callback.call(T, kValue, k, O);
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}
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}
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// 8. return undefined
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}
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}

‎Array/indexOf.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf#Polyfill
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*/
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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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// 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 === void 0 || this === null) {
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throw new TypeError('Array.prototype.indexOf called on null or undefined');
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}
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var k;
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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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if (Math.abs(n) === Infinity) {
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n = 0;
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}
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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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}
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k++;
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}
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return -1;
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};
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}

‎Array/isArray.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
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*/
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if (!Array.isArray) {
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Array.isArray = function(arg) {
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if (arg === void 0 || arg === null) {
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return false;
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}
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return (arg.__class__ === 'Array');
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};
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}

‎Array/lastIndexOf.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf
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*/
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// Production steps of ECMA-262, Edition 5, 15.4.4.15
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// Reference: http://es5.github.io/#x15.4.4.15
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if (!Array.prototype.lastIndexOf) {
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Array.prototype.lastIndexOf = function(searchElement, fromIndex) {
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if (this === void 0 || this === null) {
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throw new TypeError('Array.prototype.lastIndexOf called on null or undefined');
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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 != Infinity && n != -Infinity) {
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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 ? Math.min(n, len - 1) : 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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}
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}
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return -1;
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};
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}

‎Array/map.js

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/*
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
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*/
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// Production steps of ECMA-262, Edition 5, 15.4.4.19
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// Reference: http://es5.github.io/#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 === void 0 || this === null) {
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throw new TypeError('Array.prototype.map called on null or undefined');
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}
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// 1. Let O be the result of calling ToObject passing the |this|
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// 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
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// 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 (callback.__class__ !== '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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T = (arguments.length > 1) ? thisArg : void 0;
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// 6. Let A be a new array created as if by the expression new Array(len)
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// where Array is the standard built-in constructor with that name and
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// len is the value of len.
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A = new Array(len);
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for (var k = 0; k < len; k++) {
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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
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// 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
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// 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
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// method of callback with T as the this value and argument
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// 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
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// { Value: mappedValue,
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// Writable: true,
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// Enumerable: true,
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// 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, k, {
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// value: mappedValue,
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// writable: true,
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// enumerable: true,
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// configurable: true
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// });
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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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}
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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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