level/level-js

An abstract prototype matching the LevelDOWN API

Node.js Buffer API, for the browser

Browser-friendly inheritance fully compatible with standard node.js inherits()

Run TAP unit tests in 1789+ browsers

checks which modules you have used in your code and then makes sure they are listed as dependencies in your package.json

Markdown Style Guide, with linter and automatic fixer

Concatenate entries from an iterator into an array.

the Istanbul command line interface

JavaScript Standard Style

tap-producing test harness for node and browsers

RFC9562 UUIDs

Run an array of functions in parallel, but limit the number of tasks executing at the same time