ECMAScript extensions and shims

RFC4122 (v1, v4, and v5) UUIDs

Array#isArray for older browsers

Brand checking of React Elements.

A querystring parser that supports nesting and arrays, with a depth limit

Node.js Buffer API, for the browser

Runtime for Regenerator-compiled generator and async functions.

babel's modular runtime helpers

Get and robustly cache all JS language-level intrinsics at first require time

Implementation of Function.prototype.bind

Lodash modular utilities.

Express style path to RegExp utility

Robustly `.call.bind()` a function

string representations of objects in node and the browser

Determine if the JS environment has Symbol support. Supports spec, or shams.

Read/write IEEE754 floating point numbers from/to a Buffer or array-like object

Store information about any JS value in a side channel. Uses WeakMap if available.

ES2015 `Object.assign()` ponyfill

ECMAScript spec abstract operations.

Base64 encoding/decoding in pure JS

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

An Object.keys replacement, in case Object.keys is not available. From https://github.com/es-shims/es5-shim

ES6 spec-compliant RegExp.prototype.flags shim.

Standard library

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Full featured Promises/A+ implementation with exceptionally good performance

Object.prototype.hasOwnProperty.call shortcut

Cooperative scheduler for the browser environment.

Runtime type checking for React props and similar objects.

Is this an arguments object? It's a harder question than you think.

React is a JavaScript library for building user interfaces.

process information for node.js and browsers

A Long class for representing a 64-bit two's-complement integer value.

React package for working with the DOM.

node's assert.deepEqual algorithm

Immutable Data Collections

ES2015-compliant shim for Object.is - differentiates between -0 and +0

A shim for the setImmediate efficient script yielding API

Copies non-react specific statics from a child component to a parent component

Universal WHATWG Fetch API for Node, Browsers and React Native

A simple utility for conditionally joining classNames together

Symbol.observable ponyfill

JS Object representation of a stack frame

A window.fetch polyfill.

Extract meaning from JS Errors

A tiny invariant function

Lightweight browser detector

Declarative routing for React

JavaScript library for DOM operations

Declarative routing for React web applications

Lodash exported as ES modules.

Predictable state container for JavaScript apps

A mirror of Facebook's Warning

timers module for browserify

A simple, lightweight JavaScript API for handling cookies

Selectors for Redux.

Official React bindings for Redux

Manage session history with JavaScript

Thunk middleware for Redux.

Official library to use Popper on React projects

A kickass library to manage your poppers

Resolve URL pathnames using JavaScript

Are these two JavaScript values equal?

Lightweight promise polyfill. A+ compliant

Angular - the core framework

React draggable component

Create a 'gud nuff' (not cryptographically secure) globally unique id

Smaller Polyfill for the proposed React context API

A polyfill for IntersectionObserver

An enterprise-class UI design language and React components implementation

Polyfill for the proposed React context API

redux-immutable is used to create an equivalent function of Redux combineReducers that works with Immutable.js state.

A responsive image cropping tool for React

CSS-Element-Queries Polyfill. Proof-of-concept for high-speed element dimension/media queries in valid css.

Polyfill object-fit and object-position on images on IE9, IE10, IE11, Edge, Safari, ...