ECMAScript extensions and shims

Runtime library for TypeScript helper functions

RFC4122 (v1, v4, and v5) UUIDs

Brand checking of React Elements.

Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`

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

babel's modular runtime helpers

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

Implementation of Function.prototype.bind

Promise based HTTP client for the browser and node.js

HTTP server cookie parsing and serialization

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.

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

ECMAScript spec abstract operations.

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

Standard library

ES2017 spec-compliant Object.values shim.

Object.prototype.hasOwnProperty.call shortcut

Cooperative scheduler for the browser environment.

Runtime type checking for React props and similar objects.

React is a JavaScript library for building user interfaces.

emotion's memoize utility

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

An object of css properties that don't accept values with units

A MurmurHash2 implementation

Declarative routing for React

Lodash exported as ES modules.

Fastest deep equal comparison for React. Great for React.memo & shouldComponentUpdate. Also really fast general-purpose deep comparison.

implementation of crypto for the browser

A simple, lightweight JavaScript API for handling cookies

Like lodash isEqualWith but for shallow equal.

styled API for emotion

CSS for the <Component> Age. Style components your way with speed, strong typing, and flexibility.

Throttle and debounce functions.

A custom build of Stylis

A simple and powerful JavaScript animation library

Internationalization for react done right. Using the i18next i18n ecosystem.

Easily measure performance metrics in JavaScript

Most modern mobile touch slider and framework with hardware accelerated transitions

A frame-synced render loop for JavaScript

Create components whose prop changes map to a global side effect

A document head manager for React

Custom React PropType validators that we use at Airbnb.

Better handling for window object in SSR environment

Manage multiple event handlers using few event listeners

Minimalistic JavaScript library for DOM manipulation, with a jQuery-compatible API

Next generation Routing for React.

Smooth Scroll behavior polyfill

Responsive, theme-based style props for building design systems with React

Polyfill/shim for `document.contains`

A React component for dealing with clicks outside its subtree

Styled System for the `css` prop

Web Font Loader gives you added control when using linked fonts via @font-face.

Blazing fast modern site generator for React

An enhanced Link component for Gatsby sites with support for resource prefetching

React Router scroll management forked from https://github.com/ytase/react-router-scroll for Gatsby

number, money and currency formatting library

modern domready

A library to edit lottie-web animations dynamically