Make a function mimic another one
Framework for rapidly creating high quality, server-side node.js applications, using plugins like building blocks
Make your own error types!
Make your own nested error types!
A port of jQuery.extend that actually works on node.js
Get the prototype chain of any value as an Array
Convert classes into factory functions so they can be called with or without new.
Helper functions for prototypical inheritance
create fast and correct error constructors
Lists enumerable own and inherited property symbols of an object.
Lists enumerable own and inherited property keys of an object.
Lists enumerable own and inherited property content objects of an object.
Simple ways to extend prototypes
Check if a value is a direct instance of a class (not inherited from)
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