recursively Object.freeze() objects and functions

recursively Object.freeze() objects and functions, works in strict mode

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.

React Freeze

Recursively assign default properties. Lightweight and Fast!

Merge objects & other types recursively. A simple & small integration.

Return the prototype of a provided object.

Utilities for treating frozen JavaScript objects as persistent immutable collections.

Fastest way for creating null-prototype objects in JavaScript

Access deep object properties using a path

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

Utility functions to deal with references in objects

Really Fast Deep Clone

JSON parse with prototype poisoning protection

JSON parse with prototype poisoning protection

HANDLE CONFIGURATION ONCE AND FOR ALL

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

request body parsing for co

Easily handle defaults for your options

Copy static properties, prototype properties, and descriptors from one object to another.