Extend Packages

Chic is an extremely simple class-like interface to JavaScript prototypal inheritance

Qute runtime

Mix objects into other objects

Object cache for [Plasma].

Base Class constructor for easy class definition - supports getter/setter, inherit/extend Array Error or EventEmitter etc

its simple library for dom control.

Module aliases (based on work by Nick Gavrilov artnikpro@gmail.com)

Transparently extend a JS object with additional properties (using ES6 Proxy)

Merge two or more YAML or JSON objects into one.

Custom Jest matchers to test Svelte events

Uppercase the keys of an object

Various utility functions for working with object, including object merging, inheritance, deep copying, etc.

A postcss plugin that inserts one css classes properties into another, like Sass @extend...only better

Neatness

This module provides a simple way to inherit function and extending its prototype properties

Extend object literals with function properties to have a _super method that references the original function, instead of overwriting it. (No dependencies, but borrowed methods from underscore.js.)

TypeDoc theme that adds some useful options (header links, custom style and script, ability to create files etc)

Use npm across multiple projects without repeating yourself

Basic classical inheritance system

Node.js module to define, mixin, extend classes