core-js-build (npm): Standard library
Keywords: ES3|ES5|ES6|ES7|ES2015|ES2016|ES2017|ECMAScript 3|ECMAScript 5|ECMAScript 6|ECMAScript 7|ECMAScript 2015|ECMAScript 2016|ECMAScript 2017|Harmony|Strawman|Map|Set|WeakMap|WeakSet|Promise|Symbol|TypedArray|setImmediate|Dict|polyfill|shim