sensordb2 e64a8defe5 3.17 | 1 year ago | |
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test | 1 year ago | |
.editorconfig | 1 year ago | |
CHANGELOG.md | 1 year ago | |
CHANGES | 1 year ago | |
LICENSE | 1 year ago | |
README.md | 1 year ago | |
implement.js | 1 year ago | |
index.js | 1 year ago | |
is-implemented.js | 1 year ago | |
is-native-implemented.js | 1 year ago | |
is-weak-map.js | 1 year ago | |
package.json | 1 year ago | |
polyfill.js | 1 year ago | |
valid-weak-map.js | 1 year ago |
Roughly inspired by Mark Miller's and Kris Kowal's WeakMap implementation.
Differences are:
$ npm install es6-weak-map
To port it to Browser or any other (non CJS) environment, use your favorite CJS bundler. No favorite yet? Try: Browserify, Webmake or Webpack
If you want to make sure your environment implements WeakMap
, do:
require("es6-weak-map/implement");
If you'd like to use native version when it exists and fallback to polyfill if it doesn't, but without implementing WeakMap
on global scope, do:
var WeakMap = require("es6-weak-map");
If you strictly want to use polyfill even if native WeakMap
exists, do:
var WeakMap = require("es6-weak-map/polyfill");
Best is to refer to specification. Still if you want quick look, follow example:
var WeakMap = require("es6-weak-map");
var map = new WeakMap();
var obj = {};
map.set(obj, "foo"); // map
map.get(obj); // 'foo'
map.has(obj); // true
map.delete(obj); // true
map.get(obj); // undefined
map.has(obj); // false
map.set(obj, "bar"); // map
map.has(obj); // false
$ npm test