ES Proposal spec-compliant shim for Promise.allSettled
ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.
ES Proposal spec-compliant shim for Promise.prototype.finally
ES2015 spec-compliant shim for Reflect.ownKeys
ES2017 spec-compliant String.prototype.padStart shim.
ES2017 spec-compliant Object.values shim.
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.
An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.toReversed` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.
ES2017 spec-compliant Object.entries shim.
ES proposal-spec-compliant Object.fromEntries shim.
Spec-compliant polyfill for String.prototype.matchAll
An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.
An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
ECMAScript spec-compliant polyfill/shim for `globalThis`
ES6 spec-compliant RegExp.prototype.flags shim.
An ESnext spec-compliant shim/polyfill/replacement for all Well-Known Symbols that works in any environment with Symbols.
Spec-compliant FormData implementation for Node.js
An ES-spec-compliant shim/polyfill/replacement for the `.cause` property on all Error types that works as far down as ES3
An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.
An ESnext spec-compliant `DisposableStack`, `AsyncDisposableStack`, `Symbol.dispose`, and `Symbol.asyncDispose` shim/polyfill/replacement that works as far down as ES3.
Fast and spec-compliant printf implementation for Node.js and browser.
An ES spec-compliant `Array.prototype.forEach` shim/polyfill/replacement that works as far down as ES3.