An HTML5 video player that supports HLS and DASH with a common API and skin.

Lightweight debugging utility for Node.js and the browser

Tiny millisecond conversion utility

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

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

Implementation of Function.prototype.bind

Robustly `.call.bind()` a function

A smaller version of caniuse-db, with only the essentials!

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

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.

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

Standard library

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.

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

Node.js's util module for all engines

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

Object.prototype.hasOwnProperty.call shortcut

Is this an arguments object? It's a harder question than you think.

process information for node.js and browsers

Determine if a function is a native generator function.

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

A Light–weight CSS Preprocessor

The assert module from Node.js, for the browser.

A window.fetch polyfill.

Emulate console for all the browsers

ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.

Check if something is a promise

A standalone implementation of the AWS Signature V4 request signing algorithm

Lightweight promise polyfill. A+ compliant

foreach component + npm package

ECMAScript 2015 (ES6) Object.assign polyfill and ponyfill

A polyfill for IntersectionObserver

Polyfill/ponyfill for the AbortController DOM API + optional patching of fetch (stub that calls catch, doesn't actually abort request).

Dynamic script loading for browser

Array#filter for older browsers.

A lightweight, powerful javascript datetime picker

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

<p align="center"> <img src="https://i.imgur.com/QZownhg.png" width="240" /> </p>

A polyfill for creating CustomEvents on IE9+ if the native implementation is missing.

Event manager.

YouTube IFrame Player API abstraction.

Polyfill URL and URLSearchParams

Cross-browser JavaScript shim that fully implements element.classList (referenced on MDN)

noUiSlider is a lightweight JavaScript range slider.

Removes accents / diacritics from strings, sentences, and paragraphs fast and effeciently.

Rails UJS for the react-rails gem

Global Site Tag (gtag.js) plugin for Vue

Vanilla javascript slider for all purposes, inspired by Owl Carousel.

React component of botframework-webchat