es6-harmony (npm): An equivalent implementation of ES6 in pure ES5 for old JavaScript engines
Keywords: es|es6|harmony|es6-harmony|polyfills|ponyfills|es5|js|javascript|ecmascript|es.next|es6-symbol|es6-map|es6-set|es6-weakmap|es6-weakset|es6-promise|equivalent|es6-classes|es6-javascript|es6-polyfill|es6-promises|implementation|javascript-engine|polyfill|ponyfill