Array#isArray for older browsers

Brand checking of React Elements.

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.

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.

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.

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.

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.

Which kind of boxed JS primitive is this?

Cooperative scheduler for the browser environment.

Object.prototype.hasOwnProperty.call shortcut

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.

node's assert.deepEqual algorithm

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

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

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

Utilities for all Sentry JavaScript SDKs

Base implementation for all Sentry JavaScript SDKs

Like lodash isEqualWith but for shallow equal.

Decode JWT tokens, mostly useful for browser applications.

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

Convert CSS text to a React Native stylesheet object

Utility functions for React components.

MUI System is a set of CSS utilities to help you build custom designs more efficiently. It makes it possible to rapidly lay out custom designs.

Material UI is an open-source React component library that implements Google's Material Design. It's comprehensive and can be used in production out of the box.

Common Utils For React Component

foreach component + npm package

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

React component to generate QR codes

React components that implement Google's Material Design.

Bootstrap 5 components built with React

A React utility belt for function components and higher-order components

Listen for changes. Like an event emitter that only emits a single event type. Really tiny.

qrcode encoding in javascript

Animates a numerical value by counting to it

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

Use scroll position ReactJS hook done right