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5619 packages found
An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
- Array.prototype.flatten
- Array.prototype.flat
- flatten
- flat
- array
- ESnext
- shim
- polyfill
- flatMap
- Array.prototype.flatMap
- es-shim API
An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.
Determine if the JS environment has Symbol support. Supports spec, or shams.
An ES5 spec-compliant `Array.prototype.filter` shim/polyfill/replacement that works as far down as ES3.
ES2015-compliant shim for Object.is - differentiates between -0 and +0
ES2017 spec-compliant shim for `Object.getOwnPropertyDescriptors` that works in ES5.
- Object.getOwnPropertyDescriptors
- descriptor
- property descriptor
- ES8
- ES2017
- shim
- polyfill
- getOwnPropertyDescriptor
- es-shim API
An ESnext spec-compliant `Array.prototype.toReversed` shim/polyfill/replacement that works as far down as ES3.
A small polyfill for Object.setprototypeof
ECMAScript spec-compliant polyfill/shim for `globalThis`
- window
- self
- global
- globalThis
- System.global
- global object
- global this value
- ECMAScript
- es-shim API
- polyfill
- shim
ES Proposal spec-compliant shim for AggregateError
Standard library
An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.
ES2017 spec-compliant String.prototype.padEnd shim.
- String.prototype.padRight
- String.prototype.padEnd
- string
- ES2017
- ES8
- shim
- trim
- padLeft
- padRight
- padStart
- padEnd
- polyfill
- es-shim API
A robust & optimized `String.fromCodePoint` polyfill, based on the ECMAScript 6 specification.
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
ES2017 spec-compliant String.prototype.padStart shim.
- String.prototype.padLeft
- String.prototype.padStart
- string
- ES8
- ES2017
- shim
- trim
- padLeft
- padRight
- padStart
- padEnd
- polyfill
- es-shim API
ES2015 `Object.assign()` ponyfill
Web Streams, based on the WHATWG spec reference implementation
Array.prototype.find ES6 polyfill.