Recursively mkdir, like `mkdir -p`
Full featured Promises/A+ implementation with exceptionally good performance
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.
A light-weight module that brings window.fetch to node.js
Streams3, a user-land copy of the stream library from Node.js
fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as mkdir -p, cp -r, and rm -rf.
YAML 1.2 parser and serializer
A library for promises (CommonJS/Promises/A,B,D)