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object-assign
ES2015 `Object.assign()` ponyfill
object assign extend properties es2015 ecmascript harmony ponyfill prollyfill polyfill shim browser
path-parse
Node.js path.parse() ponyfill
path paths file dir parse built-in util utils core ponyfill polyfill shim
p-try
`Start a promise chain
promise try resolve function catch async await promises settled ponyfill polyfill shim bluebird
core-js
Standard library
ES3 ES5 ES6 ES7 ES2015 ES2016 ES2017 ES2018 ES2019 ES2020 ES2021 ES2022 ES2023 ES2024
symbol-observable
Symbol.observable ponyfill
symbol observable observables ponyfill polyfill shim
cross-fetch
Universal WHATWG Fetch API for Node, Browsers and React Native
fetch http url promise async await isomorphic universal node react native browser ponyfill whatwg
core-js-pure
Standard library
ES3 ES5 ES6 ES7 ES2015 ES2016 ES2017 ES2018 ES2019 ES2020 ES2021 ES2022 ES2023 ES2024
es6-symbol
ECMAScript 6 Symbol polyfill
symbol private property es6 ecmascript harmony ponyfill polyfill
pinkie-promise
ES2015 Promise ponyfill
promise promises es2015 es6 polyfill ponyfill
@xmldom/xmldom
A pure JavaScript W3C standard-based (XML DOM Level 2 Core) DOMParser and XMLSerializer module.
w3c dom xml parser javascript DOMParser XMLSerializer ponyfill
resize-observer-polyfill
A polyfill for the Resize Observer API
ResizeObserver resize observer util client browser polyfill ponyfill
buffer-alloc-unsafe
A [ponyfill](https://ponyfill.com) for `Buffer.allocUnsafe`.
allocUnsafe allocate buffer allocUnsafe buffer unsafe allocate buffer ponyfill unsafe allocate
fromentries
Object.fromEntries() ponyfill (in 6 lines)
Object.fromEntries Object.entries Object.values Object.keys entries values fromEntries ES7 ES8 shim object keys polyfill ponyfill
path-dirname
Node.js path.dirname() ponyfill
dirname dir path paths file built-in util utils core stdlib ponyfill polyfill shim
formdata-node
Spec-compliant FormData implementation for Node.js
form-data node form upload files-upload ponyfill
array-find-index
ES2015 `Array#findIndex()` ponyfill
es2015 ponyfill polyfill shim find index findindex array
es6-weak-map
ECMAScript6 WeakMap polyfill
map weakmap collection es6 harmony list hash gc ponyfill
@juggle/resize-observer
Polyfills the ResizeObserver API and supports box size options from the latest spec
ResizeObserver polyfill ponyfill event resize observer typescript javascript element component container queries web components front-end
scroll-into-view-if-needed
Ponyfill for upcoming Element.scrollIntoView() APIs like scrollMode: if-needed, behavior: smooth and block: center
behavior-smooth if-needed polyfill ponyfill scroll scroll-into-view scrollIntoView scrollIntoViewIfNeeded scrollMode smooth smoothscroll typescript
capture-stack-trace
Error.captureStackTrace ponyfill
ponyfill polyfill shim error capturestacktrace capture stack trace