Adds a static `extend` method to a class, to simplify inheritance. Extends the static properties, prototype properties, and descriptors from a `Parent` constructor onto `Child` constructors.

A library to make errors.

Source code handling classes for webpack

Return the prototype of a provided object.

JSON parse with prototype poisoning protection

Really Fast Deep Clone

Fastest way for creating null-prototype objects in JavaScript

A utility for managing a prototype chain

Lighthouse Stack Packs

request body parsing for co

Event emitter

Prototype related utils

Simple event emitter

**Note:** More details on user side API can be found in [Jest documentation](https://jestjs.io/docs/mock-function-api).

JSON parse with prototype poisoning protection

Push an array of items into an array, while being robust against prototype modification

TypeScript definitions for clone

Tree utilities which provides a full-featured extend and object-cloning facility, and various tools to deal with nested object structures.

Access deep object properties using a path

The default blueprint for Embroider v2 addons.