Port of jQuery.extend for node.js and the browser

ES2015 `Object.assign()` ponyfill

A library for deep (recursive) merging of Javascript objects

Recursive object extending

ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim

JavaScript Standard Style

Lodash modular utilities.

Light-weight option parsing with an argv hash. No optstrings attached.

Split a levelup database into sublevels with their own keyspace, encoding and events

tap-producing test harness for node and browsers

Store your application config in the right location.

ESLint plugin about ECMAScript syntactic features.

:warning:

Transform deprecated styling attributes on HAST table cells to inline styles

browser-side require() the node way

JavaScript test spies, stubs and mocks.