A javascript text diff implementation.

Brand checking of React Elements.

Browser-friendly inheritance fully compatible with standard node.js inherits()

babel's modular runtime helpers

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

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

string representations of objects in node and the browser

Object.prototype.hasOwnProperty.call shortcut

Implementation of Function.prototype.bind

Robustly `.call.bind()` a function

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

ECMAScript spec abstract operations.

Standard library

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

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

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

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

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

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

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

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

ES2017 spec-compliant Object.values shim.

Runtime type checking for React props and similar objects.

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

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

A simple utility for conditionally joining classNames together

ECMAScript extensions and shims

Parse and display moments in any timezone.

Lodash exported as ES modules.

traverse and transform objects by visiting every node on a recursive walk

Manage multiple event handlers using few event listeners

Custom React PropType validators that we use at Airbnb.

Modern copy to clipboard. No Flash. Just 2kb

An enterprise-class UI design language and React components implementation

Polyfill/shim for `document.contains`

A React component for dealing with clicks outside its subtree

Components to provide and consume RTL or LTR direction in React

React proptype for moment module

[![Build Status][travis-svg]][travis-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]

A responsive and accessible date range picker component built with React

Interface for react-with-styles outputting CSS

Sometimes you have to do horrible things, like use the global object to share a singleton. Abstract that away, with this!

Calculate line-height of an HTML element (IE6 compatible)

Cross-browser currentStyle/getComputedStyle implementation

scroll dom node into view automatically

Unabashedly-barebones memoization library with an aim toward speed