Standard library

ES2015 `Object.assign()` ponyfill

Check JavaScript code style with jscs

An AST-based pattern checker for JavaScript.

ES6 Harmony like collections such Map, WeakMap, and Set

ECMAScript6 Map polyfill

ES6 to ES5 compiler

Provides polyfills necessary for a full ES2015+ environment

JavaScript Standard Style

Lodash modular utilities.

Angular - the compiler CLI for Node.js

TypeScript execution environment and REPL for node.js, with source map support

(recursive)? merging of (cloned)? objects.

Node adapter for RequireJS, for loading AMD modules. Includes RequireJS optimizer