yargs the modern, pirate-themed, successor to optimist.
Recursively mkdir, like `mkdir -p`
Tiny, fast, and elegant implementation of core jQuery designed specifically for the server
Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
Parse, validate, manipulate, and display dates
Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js
parse argument options
A logger for just about everything.
A deep deletion module for node (like `rm -rf`)
get colors in your node.js console