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()
Determine if an object is a Buffer
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.