JavaScript library for DOM operations

ECMAScript extensions and shims

Lightweight debugging utility for Node.js and the browser

Tiny millisecond conversion utility

Array#isArray for older browsers

Brand checking of React Elements.

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

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

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.

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

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

ES2015 `Object.assign()` ponyfill

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.

ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim

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

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.

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

Determine if the JS environment has BigInt support.

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.

Is this value an ES BigInt?

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

Which kind of boxed JS primitive is this?

Check if a protocol requires a certain port number to be added to an URL.

Cooperative scheduler for the browser environment.

Object.prototype.hasOwnProperty.call shortcut

Map object keys and values into a new object

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.

Simple “Least Recently Used” (LRU) cache

Small footprint URL parser that works seamlessly across Node.js and browser environments

Querystringify - Small, simple but powerful query string parser.

node's assert.deepEqual algorithm

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.

emotion's memoize utility

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

Convert object keys to camel case

Universal WHATWG Fetch API for Node, Browsers and React Native

invariant

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

A Light–weight CSS Preprocessor

A function to check whether a prop is valid for HTML and SVG elements

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 window.fetch polyfill.

A tiny invariant function

A memoization library which only remembers the latest invocation

Declarative routing for React

Lodash exported as ES modules.

Declarative routing for React web applications

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

A lightweight library that provides tools for organizing asynchronous code

A simple, lightweight JavaScript API for handling cookies

Like lodash isEqualWith but for shallow equal.

Array of "void elements" defined by the HTML specification.

Manage session history with JavaScript

Remove wrapping quotes from a string.

JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.

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

Isomorphic WHATWG Fetch API, for Node & Browserify

i18next internationalization framework

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

A function to recursively extract files and their object paths within a value, replacing them with null in a deep clone without mutating the original value. FileList instances are treated as File instance arrays. Files are typically File and Blob instance

Resolve URL pathnames using JavaScript

Are these two JavaScript values equal?

Minimal GraphQL client supporting Node and browsers for scripts or simple apps

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

Parses well-formed HTML (meaning all tags closed) into an AST and back. quickly.

Generate massive amounts of fake contextual data

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

A simple base class for creating fast, lightweight web components

Thread-safe Helmet for React 16+ and friends

Wrapper for the loading of Google Maps JavaScript API script in the browser

stylis plugin to extract individual rules to use with insertRule API

The lodash method `_.unescape` exported as a module.

Auth0 SDK for Single Page Applications using Authorization Code Grant Flow with PKCE

Smooth Scroll behavior polyfill

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

Styled System for the `css` prop

Read the docs: https://styled-system.com/variants

Merge objects & other types recursively. A simple & small integration.

The HTTP client for Vue.js

Parse and stringify style attributes

This module is provided as a part of Sitecore JavaScript Rendering SDK. It contains the core JSS APIs (layout service) and utilities.

Use scroll position ReactJS hook done right

This module is provided as a part of Sitecore JavaScript Rendering SDK (JSS). It contains React components and integration for JSS.