A better forEach
Blob.js implements the W3C Blob interface in browsers that do not natively support it.
WASI polyfill for browser and some wasm util
Block API for WordPress.
filter in array tree
Track React component in viewport using Intersection Observer API
Useful utility collection with zero dependencies
Polyfill the ECMA-402 Intl API (except collation)
Rope-based persistent sequence type
A robust polyfill for the `CSS.escape` utility method as defined in CSSOM.
A robust & optimized `String.prototype.repeat` polyfill, based on the ECMAScript 6 specification.
Popover Attribute Polyfill
Parameterised tests for Jest
A browser polyfill for W3C EventSource (http://www.w3.org/TR/eventsource/)
TypeScript definitions for event-source-polyfill
Copy a descriptor from object A to object B
Native Promise Only: A polyfill for native ES6 Promises **only**, nothing else.
Polyfills Path2D api for canvas rendering
Browser console polyfill. Makes it safe to do console.log()-s etc always.
Polyfill for IE/Node 8 for Symbol.asyncIterator
A robust & optimized `String.prototype.codePointAt` polyfill, based on the ECMAScript 6 specification.
TypeScript definitions for smoothscroll-polyfill
Simple, expected, and deterministic best-match sorting of an array in JavaScript
An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.