yargs the modern, pirate-themed, successor to optimist.
simple, flexible, fun test framework
The semantic version parser used by npm.
elegant & feature rich browser / node HTTP with a fluent API
A deep deletion module for node (like `rm -rf`)
A library for promises (CommonJS/Promises/A,B,D)
small debugging utility
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js