The semantic version parser used by npm.
A tiny wrapper around Node.js streams.Transform (Streams2/3) to avoid explicit subclassing noise
A logger for just about everything.
Recursively mkdir, like `mkdir -p`
The official MongoDB driver for Node.js
elegant & feature rich browser / node HTTP with a fluent API
parse argument options
fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.