The string_decoder module from Node core
Browser-friendly inheritance fully compatible with standard node.js inherits()
Node.js Buffer API, for the browser
The Node.js util.deprecate() function with browser support
util.deprecate()
ES2015 Object.assign() ponyfill
Object.assign()
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
React is a JavaScript library for building user interfaces.
Babel compiler core.