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‎.gitignore

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.DS_Store
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/node_modules
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/npm-debug.log
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/.lintcache

‎.lint

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@root
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module
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indent 2
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maxlen 80
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tabs
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ass
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nomen
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‎.travis.yml

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language: node_js
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node_js:
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- 0.8
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- 0.10
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- 0.11
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notifications:
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email:
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- [email protected]

‎LICENCE

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Copyright (C) 2013 Mariusz Nowak (www.medikoo.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.

‎README.md

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# es6-map
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## Map collection as specified in ECMAScript6
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### Usage
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If you want to make sure your environment implements `Map`, do:
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```javascript
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require('es6-map/implement');
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```
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If you'd like to use native version when it exists and fallback to polyfill if it doesn't, but without implementing `Map` on global scope, do:
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```javascript
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var Map = require('es6-map');
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```
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If you strictly want to use polyfill even if native `Map` exists, do:
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```javascript
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var Map = require('es6-map/polyfill');
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```
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#### API
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Best is to refer to [specification](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-map-objects). Still if you want quick look, follow examples:
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```javascript
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var Map = require('es6-map');
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var x = {}, y = {}, map = new Map([['raz', 'one'], ['dwa', 'two'], [x, y]]);
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map.size; // 3
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map.get('raz'); // 'one'
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map.get(x); // y
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map.has('raz'); // true
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map.has(x); // true
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map.has('foo'); // false
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map.set('trzy', 'three'); // map
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map.size // 4
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map.get('trzy'); // 'three'
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map.has('trzy'); // true
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map.has('dwa'); // true
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map.delete('dwa'); // true
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map.size; // 3
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map.forEach(function (value, key) {
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// { 'raz', 'one' }, { x, y }, { 'trzy', 'three' } iterated
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});
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// FF nightly only:
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for (value of map) {
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// ['raz', 'one'], [x, y], ['trzy', 'three'] iterated
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}
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var iterator = map.values();
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iterator.next(); // { done: false, value: 'one' }
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iterator.next(); // { done: false, value: y }
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iterator.next(); // { done: false, value: 'three' }
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iterator.next(); // { done: true, value: undefined }
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map.clear(); // undefined
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map.size; // 0
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```
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### Installation
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#### NPM
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In your project path:
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$ npm install es6-map
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##### Browser
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You can easily bundle _es6-map_ for browser with [modules-webmake](https://github.com/medikoo/modules-webmake)
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## Tests [![Build Status](https://travis-ci.org/medikoo/es6-map.png)](https://travis-ci.org/medikoo/es6-map)
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$ npm test

‎_iterator.js

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'use strict';
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var setPrototypeOf = require('es5-ext/object/set-prototype-of')
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, primitiveSet = require('es5-ext/object/primitive-set')
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, d = require('d/d')
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, Iterator = require('es6-iterator')
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, defineProperties = Object.defineProperties
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, kinds = primitiveSet('key', 'value', 'key+value')
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, unBind = Iterator.prototype._unBind
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, MapIterator;
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MapIterator = module.exports = function (map, kind) {
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if (!(this instanceof MapIterator)) return new MapIterator(map, kind);
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Iterator.call(this, map.__mapKeysData__, map);
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if (!kind || !kinds[kind]) kind = 'key+value';
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defineProperties(this, {
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__kind__: d('', kind),
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__values__: d('w', map.__mapValuesData__)
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});
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};
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if (setPrototypeOf) setPrototypeOf(MapIterator, Iterator);
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MapIterator.prototype = Object.create(Iterator.prototype, {
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constructor: d(MapIterator),
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_resolve: d(function (i) {
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if (this.__kind__ === 'value') return this.__values__[i];
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if (this.__kind__ === 'key') return this.__list__[i];
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return [this.__list__[i], this.__values__[i]];
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}),
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_unBind: d(function () {
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this.__values__ = null;
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unBind.call(this);
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}),
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toString: d(function () { return '[object Map Iterator]'; })
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});

‎implement.js

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'use strict';
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if (!require('./is-implemented')()) {
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Object.defineProperty(require('es5-ext/global'), 'Map',
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{ value: require('./polyfill'), configurable: true, enumerable: false,
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writable: true });
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}

‎index.js

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'use strict';
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module.exports = require('./is-implemented')() ? Map : require('./polyfill');

‎is-implemented.js

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'use strict';
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module.exports = function () {
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var map, iterator, result;
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if (typeof Map !== 'function') return false;
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map = new Map([['raz', 'one'], ['dwa', 'two'], ['trzy', 'three']]);
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if (map.size !== 3) return false;
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if (typeof map.clear !== 'function') return false;
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if (typeof map.delete !== 'function') return false;
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if (typeof map.entries !== 'function') return false;
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if (typeof map.forEach !== 'function') return false;
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if (typeof map.get !== 'function') return false;
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if (typeof map.has !== 'function') return false;
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if (typeof map.keys !== 'function') return false;
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if (typeof map.set !== 'function') return false;
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if (typeof map.values !== 'function') return false;
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iterator = map.entries();
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result = iterator.next();
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if (result.done !== true) return false;
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if (!result.value) return false;
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if (result.value[0] !== 'raz') return false;
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if (result.value[1] !== 'one') return false;
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return true;
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};

‎is-map.js

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'use strict';
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var toString = Object.prototype.toString
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, id = '[object Map]'
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, Global = (typeof Map === 'undefined') ? null : Map;
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module.exports = function (x) {
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return (x && ((Global && (x instanceof Global)) ||
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(toString.call(x) === id) || (x['@@toStringTag'] === 'Map'))) || false;
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};

‎is-native-implemented.js

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// Exports true if environment provides native `Map` implementation,
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// whatever that is.
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'use strict';
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module.exports = (function () {
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if (typeof Map === 'undefined') return false;
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return (Object.prototype.toString.call(Map.prototype) === '[object Map]');
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}());

‎package.json

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{
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"name": "es6-map",
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"version": "0.0.0",
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"description": "ECMAScript6 Map polyfill",
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"author": "Mariusz Nowak <[email protected]> (http://www.medikoo.com/)",
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"keywords": [
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"collection",
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"es6",
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"shim",
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"harmony",
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"list",
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"hash",
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"map",
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"polyfill",
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"ecmascript"
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],
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"repository": {
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"type": "git",
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"url": "git://github.com/medikoo/es6-map.git"
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},
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"scripts": {
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"test": "node ./node_modules/tad/bin/tad"
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},
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"dependencies": {
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"es5-ext": "git://github.com/medikoo/es5-ext.git"
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},
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"devDependencies": {
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"tad": "~0.1.20"
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},
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"license": "MIT"
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}

‎polyfill.js

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'use strict';
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var clear = require('es5-ext/array/#/clear')
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, setPrototypeOf = require('es5-ext/object/set-prototype-of')
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, callable = require('es5-ext/object/valid-callable')
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, validValue = require('es5-ext/object/valid-value')
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, d = require('d/d')
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, ee = require('event-emitter/lib/core')
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, iterator = require('es6-iterator/valid-iterable')
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, forOf = require('es6-iterator/for-of')
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, getSetData = require('es6-set/_get-set-data')
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, Iterator = require('./_iterator')
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, isNative = require('./is-native-implemented')
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, call = Function.prototype.call, defineProperties = Object.defineProperties
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, MapPoly;
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module.exports = MapPoly = function (/*iterable, comparator*/) {
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var iterable = arguments[0], comparator = arguments[1], keys, values;
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if (!(this instanceof MapPoly)) return new MapPoly(iterable, comparator);
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if (this.__mapKeysData__ !== undefined) {
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throw new TypeError(this + " cannot be reinitialized");
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}
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if (iterable != null) iterator(iterable);
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if (comparator != null) {
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if (comparator !== 'is') throw new RangeError("Unknown comparator");
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}
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defineProperties(this, {
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__mapKeysData__: d('', keys = getSetData(comparator)),
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__mapValuesData__: d('', values = [])
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});
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if (!iterable) return;
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forOf(iterable, function (value) {
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var key = validValue(value)[0];
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value = value[1];
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if (keys.eIndexOf(key) !== -1) return;
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keys.push(key);
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values.push(value);
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}, this);
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};
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if (isNative) {
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if (setPrototypeOf) setPrototypeOf(MapPoly, Map);
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MapPoly.prototype = Object.create(Map.prototype, {
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constructor: d(MapPoly)
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});
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}
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ee(defineProperties(MapPoly.prototype, {
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clear: d(function () {
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if (!this.__mapKeysData__.length) return;
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this.__mapKeysData__.clear();
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clear.call(this.__mapValuesData__);
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this.emit('_clear');
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}),
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delete: d(function (key) {
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var index = this.__mapKeysData__.eIndexOf(key);
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if (index === -1) return false;
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this.__mapKeysData__.splice(index, 1);
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this.__mapValuesData__.splice(index, 1);
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this.emit('_delete', index, key);
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return true;
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}),
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entries: d(function () { return new Iterator(this, 'key+value'); }),
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forEach: d(function (cb/*, thisArg*/) {
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var thisArg = arguments[1], iterator, result;
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callable(cb);
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iterator = this.entries();
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result = iterator.next();
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while (!result.done) {
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call.call(cb, thisArg, result.value[1], result.value[0], this);
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result = iterator.next();
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}
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}),
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get: d(function (key) {
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var index = this.__mapKeysData__.eIndexOf(key);
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if (index === -1) return;
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return this.__mapValuesData__[index];
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}),
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has: d(function (key) {
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return (this.__mapKeysData__.eIndexOf(key) !== -1);
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}),
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keys: d(function () { return new Iterator(this, 'key'); }),
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set: d(function (key, value) {
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var index = this.__mapKeysData__.eIndexOf(key);
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if (index === -1) index = this.__mapKeysData__.push(key) - 1;
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this.__mapValuesData__[index] = value;
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this.emit('_add', index, key);
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return this;
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}),
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size: d.gs(function () { return this.__mapKeysData__.length; }),
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values: d(function () { return new Iterator(this, 'value'); }),
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'@@iterator': d(function () { return this.entries(); }),
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'@@toStringTag': d('c', 'Map'),
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toString: d(function () { return '[object Map]'; })
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}));

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