💣 A base class for creating custom JavaScript error classes

An easy to use prototypal inheritance model and generator.

Zeta Ret ProtoSS Library - Prototype Supers-Subclass ~ 1kb (Polymorphism, Prototypes, OOP)

make it easier to manage the properties/attributes of your class.

Zeta Ret Clockwork Library - OOP, Canvas, JavaScript, Stage, Renderer, DisplayObject, Graphics, Interaction

Implement prototypical inheritance by replacing the prototype of one constructor with the prototype of another constructor.

Browser-friendly enhanced inheritance and mixin fully compatible with standard node.js inherits and coffee-script.

node util.inherits with compatibility

Test whether a value has in its prototype chain a specified constructor as a prototype property.

NPM package that provides a wrapper which associates an hapi/joi schema to a class then automatically validates each change made on object properties at runtime

Test if an object's prototype chain contains a provided prototype.

A series of minimalist implementation of the JavaScript library