elem-dataset
HTML5 HTMLElement.dataset ponyfill
HTML5 HTMLElement.dataset ponyfill
ES2015 Number.MAX_SAFE_INTEGER ponyfill
reportValidity() ponyfill
A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.
Universal WHATWG Fetch API for Node, Browsers and React Native
Cross-platform Blob implementation for NodeJS and the Web.
A window.resizeTo polyfill for test environments like Jest & JSDOM
Web Streams, based on the WHATWG spec reference implementation
Ponyfill for React 16's <React.Fragment> component
Universal WHATWG Fetch API for Node, Browsers and React Native
Array#forEach ponyfill for older browsers
ES6 Map Implemented in TypeScript
Light-weight wrapper for the newer Promise-based MediaDevices.getUserMedia API with a fallback to navigator.getUserMedia (and it's prefixed variants)
Based on @xmldom/xmldom with some minor enhancements. Add querySelector, querySelectorAll and match method to Document and Element.
AudioBuffer class for node/browser
Context#getConfigBaseDir ponyfill for textlint ^8.x.x
File System Access API with legacy fallback in the browser.
ES2015 Number.isSafeInteger() ponyfill
ES6 Math.trunc() ponyfill
Polyfill for the proposed Inferno context API