collections-es6

    0.1.5 • Public • Published

    NPM version NPM total downloads License

    Collections-ES6

    Provides support for ES6 Map, Set, WeakMap and WeakSet in ES5 for older JS environments i.e. older browsers or NodeJS.

    ES6 Map, Set, WeakMap and WeakSet polyfill in pure ES5.

    Install

    It depends on symbol-es6 module, so you need to include both.

    NPM

    Install it from npm and require it before any other modules:

    $ npm install --save collections-es6
    require("symbol-es6");
    require("collections-es6");

    CDN

    If you prefer CDN, then just insert it into your HTML page on the top of other scripts:

    <script src="https://cdn.jsdelivr.net/npm/symbol-es6/dist/symbol-es6.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/collections-es6/dist/collections-es6.min.js"></script>

    Examples

    "use strict";
     
    var ES6 = require("symbol-es6");
    ES6 = require("collections-es6");
     
     
    var map = new Map([[1, 2], ["Hi", "Hello World"]]);
     
    console.log(map.has(1)); //true
    console.log(map.has("Hi")); //true
     
    map.set(NaN, "NaN");
    map.set(NaN, "Again NaN!");
    map.set(0, "Zero");
    map.set(-0, "Again Zero!");
     
    console.log(map.size); //4
    console.log(map.has(NaN)); //true
    console.log(map.size); //4
    console.log(map.has(0)); //true
    console.log(map.has(-0)); //true
     
    var set = new Set([NaN, 0, -0, "Hi", "Hello World"]);
    set.add(Infinity);
     
    console.log(set.has(NaN)); //true
    console.log(set.has("Hi")); //true
    console.log(set.size); //5
    console.log(set.has(Infinity)); //true
    console.log(set.has(-Infinity)); //false
     
    var wm = new WeakMap();
    wm.set(Object, "object");
    wm.set(Function, "function");
    wm.set({}, "new Object");
     
    console.log(wm.has(Object)); //true
    console.log(wm.has({})); //false
     
    var ws = new WeakSet();
    ws.add(Function);
    ws.add({});
     
    console.log(ws.has({})); //false
    console.log(ws.has(Function)); //true
     
    console.log(ES6.isMap(map)); //true
    console.log(ES6.isSet(set)); //true
    console.log(ES6.isWeakMap(wm)); //true
    console.log(ES6.isWeakSet(ws)); //true

    Polyfills

    • Map

      • Map.prototype.size
      • Map.prototype.set()
      • Map.prototype.get()
      • Map.prototype.has()
      • Map.prototype.clear()
      • Map.prototype.delete()
      • Map.prototype.entries()
      • Map.prototype.forEach()
      • Map.prototype.keys()
      • Map.prototype.values()
      • Map.prototype[@@iterator]()
      • Map.prototype[@@toStringTag]()
    • Set

      • Set.prototype.size
      • Set.prototype.add()
      • Set.prototype.clear()
      • Set.prototype.delete()
      • Set.prototype.entries()
      • Set.prototype.forEach()
      • Set.prototype.has()
      • Set.prototype.keys()
      • Set.prototype.values()
      • Set.prototype[@@iterator]()
      • Set.prototype[@@toStringTag]()
    • WeakMap

      • WeakMap.prototype.delete()
      • WeakMap.prototype.get()
      • WeakMap.prototype.has()
      • WeakMap.prototype.set()
      • WeakMap.prototype[@@toStringTag]()
    • WeakSet

      • WeakSet.prototype.add()
      • WeakSet.prototype.delete()
      • WeakSet.prototype.has()
      • WeakSet.prototype[@@toStringTag]()

    Contributing

    Your PRs and stars are always welcome.

    Please, try to follow:

    • Clone the repository.
    • Checkout develop branch.
    • Install dependencies.
    • Add your new features or fixes.
    • Build the project.
    $ git clone https://github.com/rousan/collections-es6.git
    cd collections-es6
    $ git checkout develop
    $ npm i
    $ npm run build

    Install

    npm i collections-es6

    DownloadsWeekly Downloads

    94

    Version

    0.1.5

    License

    MIT

    Last publish

    Collaborators

    • rousan