Full featured Promises/A+ implementation with exceptionally good performance
Reuse objects and functions with style
Really Fast Deep Clone
Easily measure performance metrics in JavaScript
Firebase JavaScript library for web and Node.js
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
React is a JavaScript library for building user interfaces.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
Babel compiler core.