Warning:
v0.1 version does not ensure O(1) algorithm complexity (but O(n)). This shortcoming will be addressed in v1.0
If you want to make sure your environment implements Set, do:
require("es6-set/implement");If you'd like to use native version when it exists and fallback to polyfill if it doesn't, but without implementing Set on global scope, do:
var Set = require("es6-set");If you strictly want to use polyfill even if native Set exists, do:
var Set = require("es6-set/polyfill");$ npm install es6-set
To port it to Browser or any other (non CJS) environment, use your favorite CJS bundler. No favorite yet? Try: Browserify, Webmake or Webpack
Best is to refer to specification. Still if you want quick look, follow examples:
var Set = require("es6-set");
var set = new Set(["raz", "dwa", {}]);
set.size; // 3
set.has("raz"); // true
set.has("foo"); // false
set.add("foo"); // set
set.size; // 4
set.has("foo"); // true
set.has("dwa"); // true
set.delete("dwa"); // true
set.size; // 3
set.forEach(function (value) {
// 'raz', {}, 'foo' iterated
});
// FF nightly only:
for (value of set) {
// 'raz', {}, 'foo' iterated
}
var iterator = set.values();
iterator.next(); // { done: false, value: 'raz' }
iterator.next(); // { done: false, value: {} }
iterator.next(); // { done: false, value: 'foo' }
iterator.next(); // { done: true, value: undefined }
set.clear(); // undefined
set.size; // 0$ npm test
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