Executes a callback for each property found on a object, recursively on nested properties, with options regarding enumerability (enumerable or non-enumerable) and ownership (inherited or only own properties). It excludes built-in properties from Object an

Executes a callback for each property found on a object, with options regarding enumerability (enumerable or non-enumerable) and ownership (inherited or only own properties). It excludes built-in properties from Object and Function prototypes by default,

Making sense of object enumerability & ownership

Object.assign that copies all descriptors, regardless of enumerability

utilities for primitive JavaScript types

The `Object.freeze()` method freezes an object: that is, prevents new properties from being added to it; prevents existing properties from being removed; and prevents existing properties, or their enumerability, configurability, or writability, from being

Inspects a Property and returns useful informations about it (e.g. nested properties, function inspection, property descriptor, value, type, constructor)

A small framework-agnostic utility for auto-binding "class" methods to instances (with customization options) using either "legacy" decorator syntax or plain old ES5 (without needing ES2015+ polyfills).

NoPP (No Prototype Pollution) – tiny helper to protect against Prototype Pollution vulnerabilities in your application

A Class implementation for JavaScript

Conform JavaScript objects to an external model

A deep cloning algorithm aware of prototypes, getters/setters, etc.

Transform ES private fields/methods to hashed properties.

ES6 Harmony like collections Map and Set

A Class implementation inspired by Backbone classes

A deep equality algorithm aware of prototypes, getters/setters, etc.

Serialize/deserialize an error into a plain object

Better `Object.defineProperty()`.

Serialize/deserialize an error into a plain object