RFC4122 (v1, v4, and v5) UUIDs

Array#isArray for older browsers

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

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.

ECMAScript spec abstract operations.

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

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

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

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

A library for deep (recursive) merging of Javascript objects

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.

Determine if a value is an ES6 Symbol or not.

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

ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.

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.

React package for working with the DOM.

Generate hashes from javascript objects in node and the browser.

A tiny (239B) utility for constructing className strings conditionally.

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

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

invariant

A tiny (304B to 489B) utility for check for deep equality

A simple utility for conditionally joining classNames together

JS Object representation of a stack frame

a few common utility template tags for ES2015

Get an iterator for any JS language value. Works robustly across all environments, all versions.

A simple common HTTP client specifically for Google APIs and services.

Extract meaning from JS Errors

A tiny invariant function

Utility package to determine if an `Array.prototype` method properly boxes the callback's receiver and third argument.

A mirror of Facebook's Warning

Backwards compatible shim for React's useSyncExternalStore. Works with any React that supports hooks.

Disables scroll outside of `children` node.

Tiny 200b functional Event Emitter / pubsub.

The same useRef, but with callback

Sidecar code splitting utils

A simpler (and smaller) rewrite of Google Android's libphonenumber library in javascript

Removes body scroll without content _shake_

Extend any fetch library with retry functionality

Just create a single stylesheet...

returns nonce

Performant, flexible and extensible forms library for React Hooks

A collection of implementation for ECMAScript abstract operations

Hyphenates a camelcased CSS property name

Polyfills the ResizeObserver API and supports box size options from the latest spec

Easily measure performance metrics in JavaScript

Angular - the core framework

A React hook that allows you to use a ResizeObserver to measure an element's size.

An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.

Iterate any JS iterator. Works robustly in all environments, all versions.

ES Proposal spec-compliant shim for Promise.allSettled

React's ExecutionEnvironment module extracted for use in other packages & components

Typescript-compatible minimalistic shallow equality check for arrays/objects

Most modern mobile touch slider and framework with hardware accelerated transitions

It is a trap! (for a focus)

Drag and Drop for React

A simple base class for creating fast, lightweight web components

Accessible modal dialog component for React.JS

A fully-featured and blazing-fast JavaScript API client to interact with Algolia API.

Hooks for managing, caching and syncing asynchronous and remote data in React

Debounce hook for react

Better handling for window object in SSR environment

Parses and determines if a given CSS Media Query matches a set of values.

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

Helper for implementing advanced search features with algolia

An accessible and easy tab component for ReactJS

Common utilities and types for Chakra UI

Vector (*.svg) country flag icons in 3x2 aspect ratio.

Node's event emitter for all engines.

Media queries in react for responsive design

Make beautiful, animated loading skeletons that automatically adapt to your app.

Telephone number input React component

Formatting user's text input on-the-fly

Browser console polyfill. Makes it safe to do console.log()-s etc always.

Effortlessly track and debug errors in your JavaScript applications with Rollbar. This package includes advanced error tracking features and an intuitive interface to help you identify and fix issues more quickly.

Social media share buttons and share counts for React.

InstantSearch.js is a JavaScript library for building performant and instant search experiences with Algolia.

Polyfills for legacy browsers

Blazing fast modern site generator for React

⚡ Lightning-fast search for React, by Algolia

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

Gatsby library that helps creating pages

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

Relocate resource intensive third-party scripts off of the main thread and into a web worker.

Stand alone shallowCompare for use in libraries that support shouldComponentUpdate

Gatsby's fork to modernize reach-router

An enhanced script component for Gatsby sites with support for various loading strategies

I18n tools for javascript

Tools to generate image urls from Sanity content

Adding responsive images to your site while maintaining high performance scores can be difficult to do manually. The Gatsby Image plugin handles the hard parts of producing images in multiple sizes and formats for you!

React components for translations

React SDK for Optimizely Feature Experimentation, Optimizely Full Stack (legacy), and Optimizely Rollouts

Fast and fully-featured autocomplete library

Typed Schema.org JSON-LD in React

Compiles a function to compute the plural forms index for a given value

Next generation of react-bootstrap-table

React component of botframework-webchat

The official JavaScript SDK for the Eventbrite v3 API