A simple cache for a few of the JS Error constructors.
Parse JSON with more helpful errors
A drop-in replacement for fs, making various improvements.
Create HTTP error objects
Easy error subclassing and stack customization
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.