ECMAScript Shims

A community host for shims and polyfills that are compliant to EcmaScript specs.

Pinned Repositories

es-shim-api
API contract, and rudimentary tests, for modules that conform to the *es-shim API*
Language:JavaScript80 6 64
es5-shim
ECMAScript 5 compatibility shims for legacy (and modern) JavaScript engines
Language:JavaScript7.1k 213 240892
es6-shim
ECMAScript 6 compatibility shims for legacy JS engines
Language:JavaScript683 30 085
es7-shim
ECMAScript 7 compatibility shims for legacy JavaScript engines
Language:JavaScript173 18 1232
globalThis
ECMAScript spec-compliant polyfill/shim for `globalThis`.
Language:JavaScript155 7 913
Object.entries
ES2017 spec-compliant shim for Object.entries
Language:JavaScript57 5 129
Object.values
ES2017 spec-compliant shim for Object.values
Language:JavaScript72 4 107
obsolete-String.prototype.at
A robust & optimized ES3-compatible polyfill for the `String.prototype.at` proposal for ECMAScript 6/7.
Language:JavaScript97 6 012
Promise.allSettled
ES Proposal spec-compliant shim for Promise.allSettled
Language:JavaScript97 4 910
Promise.prototype.finally
ES Proposal spec-compliant shim for Promise.prototype.finally
Language:JavaScript138 5 239

ECMAScript Shims's Repositories

es-shims/es-shim-api
API contract, and rudimentary tests, for modules that conform to the *es-shim API*
Language:JavaScript80 6 64
es-shims/array-includes
Array.prototype.includes spec-compliant polyfill
Language:JavaScript43 3 1812
es-shims/String.prototype.replaceAll
Spec-compliant polyfill for String.prototype.replaceAll ESnext proposal.
Language:JavaScript36 4 82
es-shims/DisposableStack
An ESnext spec-compliant `DisposableStack`, `AsyncDisposableStack`, `Symbol.dispose`, and `Symbol.asyncDispose` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript34 3 53
es-shims/error-cause
An ES-spec-compliant shim/polyfill/replacement for the `.cause` property on all Error types that works as far down as ES3
Language:JavaScript18 5 54
es-shims/AggregateError
ES Proposal spec-compliant shim for AggregateError
Language:JavaScript14 3 83
es-shims/es-arraybuffer-base64
An ES-spec-compliant shim/polyfill/replacement for ArrayBuffer base64 methods that works as far down as ES3
Language:JavaScript9 3 11
es-shims/object.assign
ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim
Language:JavaScript9 5 02
es-shims/es-abstract
ECMAScript spec abstract operations.
Language:JavaScript6 4 03
es-shims/object-keys
Object.keys shim
Language:JavaScript6 5 01
es-shims/Set.prototype.difference
An ESnext spec-compliant `Set.prototype.difference` shim/polyfill/replacement that works as far down as ES3
Language:JavaScript6 4 2
es-shims/Array.from
A robust & optimized ES3-compatible polyfill for the `Array.from` method in ECMAScript 6.
Language:JavaScript4 4 01
es-shims/Array.prototype.reduce
Array.prototype.reduce spec-compliant polyfill
Language:JavaScript4 4 72
es-shims/Array.prototype.findLastIndex
An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript3 5 13
es-shims/Array.prototype.lastIndexOf
An ES2015 spec-compliant `Array.prototype.lastIndexOf` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript3 5 41
es-shims/TypedArray.prototype.slice
ES spec-compliant shim for TypedArray.prototype.slice
Language:JavaScript3 3 3
es-shims/Error.isError
An ESnext spec-compliant `Error.isError` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript2 3 22
es-shims/.github
.github repo for es-shims org
Language:JavaScript1 3 02
es-shims/Array.prototype.slice
ES spec-compliant `Array.prototype.slice` shim/polyfill/replacement that works as far down as ES3
Language:JavaScript1 4 11
es-shims/Array.prototype.splice
ES spec-compliant Array.prototype.splice shim/polyfill/replacement that works as far down as ES3
Language:JavaScript1 4 11
es-shims/Map.groupBy
An ESnext spec-compliant `Map.groupBy` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript1 3 1
es-shims/Map.prototype.getOrInsertComputed
ES Proposal spec-compliant shim for Map.prototype.getOrInsertComputed
Language:JavaScript1
es-shims/String.prototype.codePointAt
A robust & optimized `String.prototype.codePointAt` polyfill, based on the ECMAScript 6 specification.
Language:JavaScript1 4 01
es-shims/String.prototype.lastIndexOf
An ES-spec-compliant `String.prototype.lastIndexOf`shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript1 4 11
es-shims/Array.prototype.push
An ES spec-compliant `Array.prototype.push` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript2
es-shims/Array.prototype.toSpliced
An ESnext spec-compliant `Array.prototype.toSpliced` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript5 11
es-shims/Array.prototype.with
An ESnext spec-compliant `Array.prototype.with` shim/polyfill/replacement that works as far down as ES3.
Language:JavaScript5 12
es-shims/Map.prototype.getOrInsert
ES Proposal spec-compliant shim for Map.prototype.getOrInsert
Language:JavaScript
es-shims/WeakMap.prototype.getOrInsert
ES Proposal spec-compliant shim for WeakMap.prototype.getOrInsert
Language:JavaScript
es-shims/WeakMap.prototype.getOrInsertComputed
ES Proposal spec-compliant shim for ES Proposal spec-compliant shim for WeakMap.prototype.getOrInsertComputed
Language:JavaScript