Runtime library for TypeScript helper functions

Escape RegExp special characters

RFC4122 (v1, v4, and v5) UUIDs

Array#isArray for older browsers

Brand checking of React Elements.

A library to create readable "multipart/form-data" streams. Can be used to submit forms and file uploads to other web applications.

Tool for transforming styles with JS plugins

Node.js Buffer API, for the browser

The tiniest and the fastest library for terminal output formatting with ANSI colors

Encode & decode XML and HTML entities with ease & speed

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.

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.

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.

Returns true if an object was created by the `Object` constructor, or Object.create(null).

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

Utilities for working with htmlparser2's dom

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.

render domhandler DOM nodes to a string

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

A tiny (116 bytes), secure URL-friendly unique string ID generator

Handler for htmlparser2 that turns pages into a dom

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

Node's event emitter for all engines.

Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

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.

A library for deep (recursive) merging of Javascript objects

all the types of nodes in htmlparser2's dom

Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.

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

Returns an array of Typed Array names that are available in the current environment

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 SharedArrayBuffer?

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

EventEmitter3 focuses on performance while maintaining a Node.js AND browser compatible interface.

Determine if the JS environment has BigInt support.

Create and parse HTTP Content-Type header

A better forEach

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

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

Fast & forgiving HTML/XML parser

Is this value an ES BigInt?

Does this JS environment support the `name` property on functions?

Which kind of boxed JS primitive is this?

Cooperative scheduler for the browser environment.

Object.prototype.hasOwnProperty.call shortcut

Simple and modern async event emitter

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

React package for working with the DOM.

node's assert.deepEqual algorithm

Modern JavaScript date utility library

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

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.

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

Node's querystring module for all engines.

Universal WHATWG Fetch API for Node, Browsers and React Native

A simple utility for conditionally joining classNames together

A Query Language and Runtime which can target any service.

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

A tiny (240B to 501B) and fast utility to "deep clone" Objects, Arrays, Dates, RegExps, and more!

Polyfill for Metadata Reflection API

Lodash exported as ES modules.

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

A collection of utility libraries used by other Facebook JS projects

A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.

The React Framework

A JavaScript template literal tag that parses GraphQL queries

Delay function calls until a set time elapses after the last invocation

Disables scroll outside of `children` node.

A polyfill for the Resize Observer API

The same useRef, but with callback

Sidecar code splitting utils

Removes body scroll without content _shake_

i18next internationalization framework

Just create a single stylesheet...

returns nonce

Performant, flexible and extensible forms library for React Hooks

Convert markdown to JSX with ease for React and React-like projects. Super lightweight and highly configurable.

Simple reusable React error boundary component

Returns an array of all tabbable DOM nodes within a containing node.

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

Time zone support for date-fns v3 with the Intl API

turf helpers module

DOM trap for a focus

It is a trap! (for a focus)

Create components whose prop changes map to a global side effect

turf invariant module

A spec-conformant JavaScript parser for the HTML5 srcset attribute

Monitor if a component is inside the viewport, using IntersectionObserver API

A simple base class for creating fast, lightweight web components

Finite State Machines and Statecharts for the Modern Web.

An enterprise-class UI design language and React components implementation

Universal cookies for JavaScript

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

Saga middleware for Redux to handle Side Effects

i18next-http-backend is a backend layer for i18next using in Node.js, in the browser and for Deno.

Internal, shared utilities for Reach UI.

A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.

Common utilities and types for Chakra UI

Declarative portals for React

A library for determining credit card type

Observe the Rect of a DOM element.

BezierEasing provides Cubic Bezier Curve easing which generalizes easing functions exactly like in CSS Transitions.

Autogenerate IDs to facilitate WAI-ARIA and server rendering.

The easiest way to translate your NextJs apps.

Measure React elements position in the DOM

A descendant index solution for better accessibility support in compound components

Accessible React Modal Dialog.

Render a portal positioned relative to another element.

Accessible React Combobox (Autocomplete).

Pure Javascript Multilingual OCR

React hooks and components to create parallax scroll effects for banners, images or any other DOM elements.