Repositories list

• Array.from

  Public
  A robust & optimized ES3-compatible polyfill for the `Array.from` method in ECMAScript 6.

  JavaScript

  •

  MIT License

  •15•4•0•0•Updated May 7, 2025May 7, 2025

• WeakMap.prototype.getOrInsertComputed

  Public
  ES Proposal spec-compliant shim for ES Proposal spec-compliant shim for WeakMap.prototype.getOrInsertComputed

  JavaScript

  •

  MIT License

  •0•0•1•0•Updated May 3, 2025May 3, 2025

• WeakMap.prototype.getOrInsert

  Public
  ES Proposal spec-compliant shim for WeakMap.prototype.getOrInsert

  JavaScript

  •

  MIT License

  •0•0•1•0•Updated May 3, 2025May 3, 2025

• Map.prototype.getOrInsert

  Public
  ES Proposal spec-compliant shim for Map.prototype.getOrInsert

  JavaScript

  •

  MIT License

  •0•0•1•0•Updated Apr 27, 2025Apr 27, 2025

• Map.prototype.getOrInsertComputed

  Public
  ES Proposal spec-compliant shim for Map.prototype.getOrInsertComputed

  JavaScript

  •

  MIT License

  •0•1•1•0•Updated Apr 27, 2025Apr 27, 2025

• object-keys

  Public
  Object.keys shim

  JavaScript

  •

  MIT License

  •17•6•0•0•Updated Apr 22, 2025Apr 22, 2025

• object.assign

  Public
  ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim

  JavaScript

  •

  MIT License

  •22•9•0•0•Updated Apr 21, 2025Apr 21, 2025

• es-abstract

  Public
  ECMAScript spec abstract operations.

  JavaScript

  •

  MIT License

  •30•6•0•0•Updated Apr 11, 2025Apr 11, 2025

• Map.groupBy

  Public
  An ESnext spec-compliant `Map.groupBy` shim/polyfill/replacement that works as far down as ES3.

  JavaScript

  •

  MIT License

  •0•1•1•0•Updated Mar 25, 2025Mar 25, 2025

• Array.prototype.reduce

  Public
  Array.prototype.reduce spec-compliant polyfill

  javascriptpolyfillarray+ 3ecmascriptreduceshim

  JavaScript

  •

  MIT License

  •2•4•1•0•Updated Mar 15, 2025Mar 15, 2025

• Set.prototype.difference

  Public
  An ESnext spec-compliant `Set.prototype.difference` shim/polyfill/replacement that works as far down as ES3

  javascriptpolyfillset+ 4ecmascriptshimdifferencees-shims

  JavaScript

  •

  MIT License

  •0•7•1•0•Updated Mar 15, 2025Mar 15, 2025

• Array.prototype.lastIndexOf

  Public
  An ES2015 spec-compliant `Array.prototype.lastIndexOf` shim/polyfill/replacement that works as far down as ES3.

  javascriptpolyfillarray+ 3ecmascriptshimlastindexof

  JavaScript

  •

  MIT License

  •1•3•1•0•Updated Mar 14, 2025Mar 14, 2025

• Array.prototype.findLastIndex

  Public
  An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.

  arrayshimfindlastindex+ 3javascriptpolyfillecmascript

  JavaScript

  •

  MIT License

  •3•3•1•1•Updated Mar 14, 2025Mar 14, 2025

• Array.prototype.splice

  Public
  ES spec-compliant Array.prototype.splice shim/polyfill/replacement that works as far down as ES3

  spliceshimjavascript+ 3polyfillarrayecmascript

  JavaScript

  •

  MIT License

  •1•0•1•0•Updated Mar 14, 2025Mar 14, 2025

• Array.prototype.toSpliced

  Public
  An ESnext spec-compliant `Array.prototype.toSpliced` shim/polyfill/replacement that works as far down as ES3.

  JavaScript

  •

  MIT License

  •1•0•1•0•Updated Mar 14, 2025Mar 14, 2025

• Array.prototype.push

  Public
  An ES spec-compliant `Array.prototype.push` shim/polyfill/replacement that works as far down as ES3.

  javascriptpolyfillarray+ 2ecmascriptshim

  JavaScript

  •

  MIT License

  •2•0•1•0•Updated Mar 14, 2025Mar 14, 2025

• es-string-html-methods

  Public
  An ES-spec-compliant shim/polyfill/replacement for the Annex B String.prototype HTML methods that works as far down as ES3

  javascriptpolyfillhtml+ 16stringecmascriptsmalllinkanchorblinkshim+ 9

  JavaScript

  •

  MIT License

  •2•1•1•0•Updated Mar 14, 2025Mar 14, 2025

• String.prototype.padStart

  Public
  ES spec-compliant shim for String.prototype.padStart

  JavaScript

  •

  MIT License

  •4•23•1•0•Updated Mar 14, 2025Mar 14, 2025

• RegExp.prototype.flags

  Public
  ES6 spec-compliant RegExp.prototype.flags shim

  regexregexpregular-expression+ 4flagsjavascriptpolyfillecmascript

  JavaScript

  •

  MIT License

  •10•8•1•1•Updated Mar 5, 2025Mar 5, 2025

• TypedArray.prototype.at

  Public
  An ES5 spec-compliant `TypedArray.prototype.at` shim/polyfill/replacement that works as far down as ES3

  JavaScript

  •

  MIT License

  •0•1•1•0•Updated Mar 5, 2025Mar 5, 2025

• Date.prototype.getYear

  Public
  An ES5 spec-compliant `Date.prototype.getYear` shim/polyfill/replacement that works as far down as ES3.

  JavaScript

  •

  MIT License

  •0•1•1•0•Updated Mar 4, 2025Mar 4, 2025

• Array.prototype.reverse

  Public
  Array.prototype.reverse spec-compliant polyfill

  JavaScript

  •

  MIT License

  •0•0•1•0•Updated Mar 4, 2025Mar 4, 2025

• Array.isArray

  Public
  Array.isArray spec-compliant polyfill

  JavaScript

  •

  MIT License

  •0•2•1•0•Updated Mar 4, 2025Mar 4, 2025

• SuppressedError

  Public
  ES Proposal spec-compliant shim for SuppressedError

  javascriptpolyfillecmascript+ 4errorshimsuppressedsuppressederror

  JavaScript

  •

  MIT License

  •1•3•1•0•Updated Feb 26, 2025Feb 26, 2025

• DisposableStack

  Public
  An ESnext spec-compliant `DisposableStack`, `AsyncDisposableStack`, `Symbol.dispose`, and `Symbol.asyncDispose` shim/polyfill/replacement that works as far down as ES3.

  polyfillresourcemanagement+ 6usingshimdisposedisposablestackjavascriptecmascript

  JavaScript

  •

  MIT License

  •4•30•1•0•Updated Feb 26, 2025Feb 26, 2025

• iterator-helpers

  Public
  An ESnext spec-compliant iterator helpers shim/polyfill/replacement that works as far down as ES3.

  javascriptpolyfillmap+ 16filterecmascriptiteratordropfindforeachreduce+ 9

  JavaScript

  •

  MIT License

  •2•17•1•0•Updated Feb 12, 2025Feb 12, 2025

• es-object-atoms

  Public
  ES Object-related atoms: Object, ToObject, RequireObjectCoercible

  javascriptobjectecmascript+ 2toobjecttoobjectcoercible

  JavaScript

  •

  MIT License

  •0•3•1•0•Updated Jan 15, 2025Jan 15, 2025

• well-known-symbols

  Public
  An ESnext spec-compliant shim/polyfill/replacement for all Well-Known Symbols that works in any environment with Symbols

  javascriptpolyfillecmascript+ 1shim

  JavaScript

  •

  MIT License

  •1•4•0•0•Updated Jan 7, 2025Jan 7, 2025

• TypedArray.prototype.slice

  Public
  ES spec-compliant shim for TypedArray.prototype.slice

  JavaScript

  •

  MIT License

  •0•3•1•0•Updated Jan 3, 2025Jan 3, 2025

• Object.getPrototypeOf

  Public
  An ES5 mostly-spec-compliant `Object.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible.

  javascriptpolyfillecmascript+ 2shimecmascript5

  JavaScript

  •

  MIT License

  •2•2•1•0•Updated Jan 3, 2025Jan 3, 2025