String-key only ES6 Map polyfill, with same asymptotic performance.
fast and robust stringmap
JavaScript utilities with respect to emerging standard
ECMAScript extensions and shims
ECMAScript 5 compatibility shims for legacy JavaScript engines
Polyfill for Metadata Reflection API
Node's event emitter for all engines.
ES6 spec-compliant RegExp.prototype.flags shim.
Web Streams, based on the WHATWG spec reference implementation
Bare bones Promises/A+ implementation
An ES2015 spec-compliant `Function.prototype.name` shim
JSON for Humans
regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.
Node.js's util module for all engines
Zones for JavaScript
ECMAScript 6 (Harmony) compatibility shims for legacy JavaScript engines
Compile ES2015 computed properties to ES5
Compile ES2015 default and rest parameters to ES5
Collect all uglify bug versions on npm package.
Compile ES2015 sticky regex to an ES5 RegExp constructor
Compile ES2015 block scoping (const and let) to ES5
Compile ES2015 spread to ES5
Compile ES2015 arrow functions to ES5
Compile ES2015 unicode string and number literals to ES5