zloirock/core-js (core-js)
### [`v3.33.2`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3332---20231031)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.33.1...v3.33.2)
- Simplified `structuredClone` polyfill, avoided second tree pass in cases of transferring
- Added support of [`SuppressedError`](https://togithub.com/tc39/proposal-explicit-resource-management#the-suppressederror-error) to `structuredClone` polyfill
- Removed unspecified unnecessary `ArrayBuffer` and `DataView` dependencies of `structuredClone` lack of which could cause errors in some entries in IE10-
- Fixed handling of fractional number part in [`Number.fromString`](https://togithub.com/tc39/proposal-number-fromstring)
- Compat data improvements:
- [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) marked as [supported from Chromium 120](https://bugs.chromium.org/p/chromium/issues/detail?id=1425839)
- Updated Opera Android 78 compat data mapping
- Added Electron 29 compat data mapping
### [`v3.33.1`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3331---20231020)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.33.0...v3.33.1)
- Added one more workaround of possible error with `Symbol` polyfill on global object, [#1289](https://togithub.com/zloirock/core-js/issues/1289#issuecomment-1768411444)
- Directly specified `type: commonjs` in `package.json` of all packages to avoid potential breakage in future Node versions, see [this issue](https://togithub.com/nodejs/TSC/issues/1445)
- Prevented potential issue with lack of some dependencies after automatic optimization polyfills of some methods in the pure version
- Some minor internal fixes and optimizations
- Compat data improvements:
- [`String.prototype.{ isWellFormed, toWellFormed }`](https://togithub.com/tc39/proposal-is-usv-string) marked as [supported from FF119](https://bugzilla.mozilla.org/show_bug.cgi?id=1850755)
- Added React Native 0.73 Hermes compat data, mainly fixes of [some issues](https://togithub.com/facebook/hermes/issues/770)
- Added [NodeJS 21.0 compat data mapping](https://nodejs.org/ru/blog/release/v21.0.0)
### [`v3.33.0`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3330---20231002)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.32.2...v3.33.0)
- Re-introduced [`RegExp` escaping stage 2 proposal](https://togithub.com/tc39/proposal-regex-escaping), September 2023 TC39 meeting:
- Added `RegExp.escape` method with the new set of symbols for escaping
- Some years ago, it was presented in `core-js`, but it was removed after rejecting the old version of this proposal
- Added [`ArrayBuffer.prototype.{ transfer, transferToFixedLength }`](https://togithub.com/tc39/proposal-arraybuffer-transfer) and support transferring of `ArrayBuffer`s via [`structuredClone`](https://html.spec.whatwg.org/multipage/structured-data.html#dom-structuredclone) to engines with `MessageChannel`
- Optimized [`Math.f16round`](https://togithub.com/tc39/proposal-float16array) polyfill
- Fixed [some conversion cases](https://togithub.com/petamoriken/float16/issues/1046) of [`Math.f16round` and `DataView.prototype.{ getFloat16, setFloat16 }`](https://togithub.com/tc39/proposal-float16array)
- Fully forced polyfilling of [the TC39 `Observable` proposal](https://togithub.com/tc39/proposal-observable) because of incompatibility with [the new WHATWG `Observable` proposal](https://togithub.com/WICG/observable)
- Added an extra workaround of errors with exotic environment objects in `Symbol` polyfill, [#1289](https://togithub.com/zloirock/core-js/issues/1289)
- Some minor fixes and stylistic changes
- Compat data improvements:
- V8 unshipped [`Iterator` helpers](https://togithub.com/tc39/proposal-iterator-helpers) because of [some Web compatibility issues](https://togithub.com/tc39/proposal-iterator-helpers/issues/286)
- [`Promise.withResolvers`](https://togithub.com/tc39/proposal-promise-with-resolvers) marked as [supported from V8 ~ Chrome 119](https://chromestatus.com/feature/5810984110784512)
- [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping) features marked as [supported from FF119](https://bugzilla.mozilla.org/show_bug.cgi?id=1792650#c9)
- [`value` argument of `URLSearchParams.prototype.{ has, delete }`](https://url.spec.whatwg.org/#dom-urlsearchparams-delete) marked as properly supported from V8 ~ Chrome 118
- [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) and [`URLSearchParams.prototype.size`](https://url.spec.whatwg.org/#dom-urlsearchparams-size) marked as [supported from Bun 1.0.2](https://togithub.com/oven-sh/bun/releases/tag/bun-v1.0.2)
- Added Deno 1.37 compat data mapping
- Added Electron 28 compat data mapping
- Added Opera Android 78 compat data mapping
### [`v3.32.2`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3322---20230907)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.32.1...v3.32.2)
- Fixed `structuredClone` feature detection `core-js@3.32.1` bug, [#1288](https://togithub.com/zloirock/core-js/issues/1288)
- Added a workaround of old WebKit + `eval` bug, [#1287](https://togithub.com/zloirock/core-js/pull/1287)
- Compat data improvements:
- Added Samsung Internet 23 compat data mapping
- Added Quest Browser 29 compat data mapping
### [`v3.32.1`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3321---20230819)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.32.0...v3.32.1)
- Fixed some cases of IEEE754 rounding, [#1279](https://togithub.com/zloirock/core-js/issues/1279), thanks [**@petamoriken**](https://togithub.com/petamoriken)
- Prevented injection `process` polyfill to `core-js` via some bundlers or `esm.sh`, [#1277](https://togithub.com/zloirock/core-js/issues/1277)
- Some minor fixes and stylistic changes
- Compat data improvements:
- [`Promise.withResolvers`](https://togithub.com/tc39/proposal-promise-with-resolvers) marked as supported [from Bun 0.7.1](https://bun.sh/blog/bun-v0.7.1#bun-ismainthread-and-promise-withresolvers)
- Added Opera Android 77 compat data mapping
- Updated Electron 27 compat data mapping
### [`v3.32.0`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3320---20230728)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.31.1...v3.32.0)
- [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping), July 2023 TC39 meeting updates:
- [Moved back to stage 3](https://togithub.com/tc39/proposal-array-grouping/issues/54)
- Added `/actual/` namespaces entries, unconditional forced replacement changed to feature detection
- [`Promise.withResolvers` proposal](https://togithub.com/tc39/proposal-promise-with-resolvers), July 2023 TC39 meeting updates:
- [Moved to stage 3](https://togithub.com/tc39/proposal-promise-with-resolvers/pull/18)
- Added `/actual/` namespaces entries, unconditional forced replacement changed to feature detection
- [`Set` methods stage 3 proposal](https://togithub.com/tc39/proposal-set-methods), July 2023 TC39 meeting updates:
- Throw on negative `Set` sizes, [proposal-set-methods/88](https://togithub.com/tc39/proposal-set-methods/pull/88)
- Removed `IsCallable` check in `GetKeysIterator`, [proposal-set-methods/101](https://togithub.com/tc39/proposal-set-methods/pull/101)
- [Iterator Helpers stage 3 proposal](https://togithub.com/tc39/proposal-iterator-helpers):
- Avoid creating observable `String` wrapper objects, July 2023 TC39 meeting update, [proposal-iterator-helpers/281](https://togithub.com/tc39/proposal-iterator-helpers/pull/281)
- `Iterator` is not constructible from the active function object (works as an abstract class)
- Async explicit resource management:
- Moved back into [the initial proposal](https://togithub.com/tc39/proposal-explicit-resource-management) -> moved to stage 3, [proposal-explicit-resource-management/154](https://togithub.com/tc39/proposal-explicit-resource-management/pull/154)
- Added `/actual/` namespace entries, unconditional forced replacement changed to feature detection
- Ignore return value of `[@@dispose]()` method when hint is `async-dispose`, [proposal-explicit-resource-management/180](https://togithub.com/tc39/proposal-explicit-resource-management/pull/180)
- Added ticks for empty resources, [proposal-explicit-resource-management/163](https://togithub.com/tc39/proposal-explicit-resource-management/pull/163)
- Added some methods from [`Float16Array` stage 3 proposal](https://togithub.com/tc39/proposal-float16array):
- There are some reason why I don't want to add `Float16Array` right now, however, make sense to add some methods from this proposal.
- Methods:
- `Math.f16round`
- `DataView.prototype.getFloat16`
- `DataView.prototype.setFloat16`
- Added [`DataView` get / set `Uint8Clamped` methods stage 1 proposal](https://togithub.com/tc39/proposal-dataview-get-set-uint8clamped):
- Methods:
- `DataView.prototype.getUint8Clamped`
- `DataView.prototype.setUint8Clamped`
- Used strict mode in some missed cases, [#1269](https://togithub.com/zloirock/core-js/issues/1269)
- Fixed [a Chromium 117 bug](https://bugs.chromium.org/p/v8/issues/detail?id=14222) in `value` argument of `URLSearchParams.prototype.{ has, delete }`
- Fixed early WebKit ~ Safari 17.0 beta `Set` methods implementation by the actual spec
- Fixed incorrect `Symbol.{ dispose, asyncDispose }` descriptors from [NodeJS 20.4](https://togithub.com/nodejs/node/issues/48699) / transpilers helpers / userland code
- Fixed forced polyfilling of some iterator helpers that should return wrapped iterator in the pure version
- Fixed and exposed [`AsyncIteratorPrototype` `core-js/configurator` option](https://togithub.com/zloirock/core-js#asynciterator-helpers), [#1268](https://togithub.com/zloirock/core-js/issues/1268)
- Compat data improvements:
- Sync [`Iterator` helpers proposal](https://togithub.com/tc39/proposal-iterator-helpers) features marked as [supported](https://chromestatus.com/feature/5102502917177344) from V8 ~ Chrome 117
- [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping) features marked as [supported](https://chromestatus.com/feature/5714791975878656) from V8 ~ Chrome 117
- Mark `Symbol.{ dispose, asyncDispose }` as supported from NodeJS 20.5.0 (as mentioned above, NodeJS 20.4.0 add it, but [with incorrect descriptors](https://togithub.com/nodejs/node/issues/48699))
- Added Electron 27 compat data mapping
### [`v3.31.1`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3311---20230706)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.31.0...v3.31.1)
- Fixed a `structuredClone` bug with cloning views of transferred buffers, [#1265](https://togithub.com/zloirock/core-js/issues/1265)
- Fixed the order of arguments validation in `DataView` methods
- Allowed cloning of [`Float16Array`](https://togithub.com/tc39/proposal-float16array) in `structuredClone`
- Compat data improvements:
- [`Set` methods proposal](https://togithub.com/tc39/proposal-set-methods) marked as [supported from Safari 17.0](https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes#JavaScript)
- New `URL` features: [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse), [`URLSearchParams.prototype.size`](https://url.spec.whatwg.org/#dom-urlsearchparams-size) and [`value` argument of `URLSearchParams.prototype.{ has, delete }`](https://url.spec.whatwg.org/#dom-urlsearchparams-delete) marked as [supported from Safari 17.0](https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes#Web-API)
- `value` argument of `URLSearchParams.prototype.{ has, delete }` marked as supported from [Deno 1.35](https://togithub.com/denoland/deno/pull/19654)
- `AggregateError` and well-formed `JSON.stringify` marked as [supported React Native 0.72 Hermes](https://reactnative.dev/blog/2023/06/21/0.72-metro-package-exports-symlinks#more-ecmascript-support-in-hermes)
- Added Deno 1.35 compat data mapping
- Added Quest Browser 28 compat data mapping
- Added missing NodeJS 12.16-12.22 compat data mapping
- Updated Opera Android 76 compat data mapping
### [`v3.31.0`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3310---20230612)
[Compare Source](https://togithub.com/zloirock/core-js/compare/v3.30.2...v3.31.0)
- [Well-formed unicode strings proposal](https://togithub.com/tc39/proposal-is-usv-string):
- Methods:
- `String.prototype.isWellFormed` method
- `String.prototype.toWellFormed` method
- Moved to stable ES, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-15.md#well-formed-unicode-strings-for-stage-4)
- Added `es.` namespace modules, `/es/` and `/stable/` namespaces entries
- [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping), [May 2023 TC39 meeting updates](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#arrayprototypegroup-rename-for-web-compatibility):
- Because of the [web compat issue](https://togithub.com/tc39/proposal-array-grouping/issues/44), [moved from prototype to static methods](https://togithub.com/tc39/proposal-array-grouping/pull/47). Added:
- `Object.groupBy` method
- `Map.groupBy` method (with the actual semantic - with a minor difference it was present [in the collections methods stage 1 proposal](https://togithub.com/tc39/proposal-collection-methods))
- Demoted to stage 2
- [Decorator Metadata proposal](https://togithub.com/tc39/proposal-decorator-metadata), [May 2023 TC39 meeting updates](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#decorator-metadata-for-stage-3):
- Moved to stage 3
- Added `Function.prototype[Symbol.metadata]` (`=== null`)
- Added `/actual/` entries
- [Iterator Helpers stage 3 proposal](https://togithub.com/tc39/proposal-iterator-helpers):
- Changed `Symbol.iterator` fallback from callable check to `undefined` / `null` check, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#iterator-helpers-should-symboliterator-fallback-be-a-callable-check-or-an-undefinednull-check), [proposal-iterator-helpers/272](https://togithub.com/tc39/proposal-iterator-helpers/pull/272)
- Removed `IsCallable` check on `NextMethod`, deferring errors to `Call` site, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#iterator-helpers-should-malformed-iterators-fail-early-or-fail-only-when-iterated), [proposal-iterator-helpers/274](https://togithub.com/tc39/proposal-iterator-helpers/pull/274)
- Added [`Promise.withResolvers` stage 2 proposal](https://togithub.com/tc39/proposal-promise-with-resolvers):
- `Promise.withResolvers` method
- [`Symbol` predicates stage 2 proposal](https://togithub.com/tc39/proposal-symbol-predicates):
- The methods renamed to end with `Symbol`, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-15.md#symbol-predicates):
- `Symbol.isRegistered` -> `Symbol.isRegisteredSymbol` method
- `Symbol.isWellKnown` -> `Symbol.isWellKnownSymbol` method
- Added `value` argument of `URLSearchParams.prototype.{ has, delete }`, [url/735](https://togithub.com/whatwg/url/pull/735)
- Fixed some cases of increasing buffer size in `ArrayBuffer.prototype.{ transfer, transferToFixedLength }` polyfills
- Fixed awaiting async `AsyncDisposableStack.prototype.adopt` callback, [#1258](https://togithub.com/zloirock/core-js/issues/1258)
- Fixed `URLSearchParams#size` in ES3 engines (IE8-)
- Added a workaround in `Object.{ entries, values }` for some IE versions bug with invisible integer keys on `null`-prototype objects
- Added TypeScript definitions to `core-js-compat`, [#1235](https://togithub.com/zloirock/core-js/issues/1235), thanks [**@susnux**](https://togithub.com/susnux)
- Compat data improvements:
- [`Set.prototype.difference`](https://togithub.com/tc39/proposal-set-methods) that was missed in Bun because of [a bug](https://togithub.com/oven-sh/bun/issues/2309) added in 0.6.0
- `Array.prototype.{ group, groupToMap }` marked as no longer supported in WebKit runtimes because of the mentioned above web compat issue. For example, it's disabled from Bun 0.6.2
- Methods from the [change `Array` by copy proposal](https://togithub.com/tc39/proposal-change-array-by-copy) marked as supported from FF115
- [`Array.fromAsync`](https://togithub.com/tc39/proposal-array-from-async) marked as supported from FF115
- [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) marked as supported from FF115
- `value` argument of `URLSearchParams.prototype.{ has, delete }` marked as supported from [NodeJS 20.2.0](https://togithub.com/nodejs/node/pull/47885) and FF115
- Added Deno 1.34 compat data mapping
- Added Electron 26 compat data mapping
- Added Samsung Internet 22 compat data mapping
- Added Opera Android 75 and 76 compat data mapping
- Added Quest Browser 27 compat data mapping
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3.30.2->3.33.2Release Notes
zloirock/core-js (core-js)
### [`v3.33.2`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3332---20231031) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.33.1...v3.33.2) - Simplified `structuredClone` polyfill, avoided second tree pass in cases of transferring - Added support of [`SuppressedError`](https://togithub.com/tc39/proposal-explicit-resource-management#the-suppressederror-error) to `structuredClone` polyfill - Removed unspecified unnecessary `ArrayBuffer` and `DataView` dependencies of `structuredClone` lack of which could cause errors in some entries in IE10- - Fixed handling of fractional number part in [`Number.fromString`](https://togithub.com/tc39/proposal-number-fromstring) - Compat data improvements: - [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) marked as [supported from Chromium 120](https://bugs.chromium.org/p/chromium/issues/detail?id=1425839) - Updated Opera Android 78 compat data mapping - Added Electron 29 compat data mapping ### [`v3.33.1`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3331---20231020) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.33.0...v3.33.1) - Added one more workaround of possible error with `Symbol` polyfill on global object, [#1289](https://togithub.com/zloirock/core-js/issues/1289#issuecomment-1768411444) - Directly specified `type: commonjs` in `package.json` of all packages to avoid potential breakage in future Node versions, see [this issue](https://togithub.com/nodejs/TSC/issues/1445) - Prevented potential issue with lack of some dependencies after automatic optimization polyfills of some methods in the pure version - Some minor internal fixes and optimizations - Compat data improvements: - [`String.prototype.{ isWellFormed, toWellFormed }`](https://togithub.com/tc39/proposal-is-usv-string) marked as [supported from FF119](https://bugzilla.mozilla.org/show_bug.cgi?id=1850755) - Added React Native 0.73 Hermes compat data, mainly fixes of [some issues](https://togithub.com/facebook/hermes/issues/770) - Added [NodeJS 21.0 compat data mapping](https://nodejs.org/ru/blog/release/v21.0.0) ### [`v3.33.0`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3330---20231002) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.32.2...v3.33.0) - Re-introduced [`RegExp` escaping stage 2 proposal](https://togithub.com/tc39/proposal-regex-escaping), September 2023 TC39 meeting: - Added `RegExp.escape` method with the new set of symbols for escaping - Some years ago, it was presented in `core-js`, but it was removed after rejecting the old version of this proposal - Added [`ArrayBuffer.prototype.{ transfer, transferToFixedLength }`](https://togithub.com/tc39/proposal-arraybuffer-transfer) and support transferring of `ArrayBuffer`s via [`structuredClone`](https://html.spec.whatwg.org/multipage/structured-data.html#dom-structuredclone) to engines with `MessageChannel` - Optimized [`Math.f16round`](https://togithub.com/tc39/proposal-float16array) polyfill - Fixed [some conversion cases](https://togithub.com/petamoriken/float16/issues/1046) of [`Math.f16round` and `DataView.prototype.{ getFloat16, setFloat16 }`](https://togithub.com/tc39/proposal-float16array) - Fully forced polyfilling of [the TC39 `Observable` proposal](https://togithub.com/tc39/proposal-observable) because of incompatibility with [the new WHATWG `Observable` proposal](https://togithub.com/WICG/observable) - Added an extra workaround of errors with exotic environment objects in `Symbol` polyfill, [#1289](https://togithub.com/zloirock/core-js/issues/1289) - Some minor fixes and stylistic changes - Compat data improvements: - V8 unshipped [`Iterator` helpers](https://togithub.com/tc39/proposal-iterator-helpers) because of [some Web compatibility issues](https://togithub.com/tc39/proposal-iterator-helpers/issues/286) - [`Promise.withResolvers`](https://togithub.com/tc39/proposal-promise-with-resolvers) marked as [supported from V8 ~ Chrome 119](https://chromestatus.com/feature/5810984110784512) - [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping) features marked as [supported from FF119](https://bugzilla.mozilla.org/show_bug.cgi?id=1792650#c9) - [`value` argument of `URLSearchParams.prototype.{ has, delete }`](https://url.spec.whatwg.org/#dom-urlsearchparams-delete) marked as properly supported from V8 ~ Chrome 118 - [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) and [`URLSearchParams.prototype.size`](https://url.spec.whatwg.org/#dom-urlsearchparams-size) marked as [supported from Bun 1.0.2](https://togithub.com/oven-sh/bun/releases/tag/bun-v1.0.2) - Added Deno 1.37 compat data mapping - Added Electron 28 compat data mapping - Added Opera Android 78 compat data mapping ### [`v3.32.2`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3322---20230907) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.32.1...v3.32.2) - Fixed `structuredClone` feature detection `core-js@3.32.1` bug, [#1288](https://togithub.com/zloirock/core-js/issues/1288) - Added a workaround of old WebKit + `eval` bug, [#1287](https://togithub.com/zloirock/core-js/pull/1287) - Compat data improvements: - Added Samsung Internet 23 compat data mapping - Added Quest Browser 29 compat data mapping ### [`v3.32.1`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3321---20230819) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.32.0...v3.32.1) - Fixed some cases of IEEE754 rounding, [#1279](https://togithub.com/zloirock/core-js/issues/1279), thanks [**@petamoriken**](https://togithub.com/petamoriken) - Prevented injection `process` polyfill to `core-js` via some bundlers or `esm.sh`, [#1277](https://togithub.com/zloirock/core-js/issues/1277) - Some minor fixes and stylistic changes - Compat data improvements: - [`Promise.withResolvers`](https://togithub.com/tc39/proposal-promise-with-resolvers) marked as supported [from Bun 0.7.1](https://bun.sh/blog/bun-v0.7.1#bun-ismainthread-and-promise-withresolvers) - Added Opera Android 77 compat data mapping - Updated Electron 27 compat data mapping ### [`v3.32.0`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3320---20230728) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.31.1...v3.32.0) - [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping), July 2023 TC39 meeting updates: - [Moved back to stage 3](https://togithub.com/tc39/proposal-array-grouping/issues/54) - Added `/actual/` namespaces entries, unconditional forced replacement changed to feature detection - [`Promise.withResolvers` proposal](https://togithub.com/tc39/proposal-promise-with-resolvers), July 2023 TC39 meeting updates: - [Moved to stage 3](https://togithub.com/tc39/proposal-promise-with-resolvers/pull/18) - Added `/actual/` namespaces entries, unconditional forced replacement changed to feature detection - [`Set` methods stage 3 proposal](https://togithub.com/tc39/proposal-set-methods), July 2023 TC39 meeting updates: - Throw on negative `Set` sizes, [proposal-set-methods/88](https://togithub.com/tc39/proposal-set-methods/pull/88) - Removed `IsCallable` check in `GetKeysIterator`, [proposal-set-methods/101](https://togithub.com/tc39/proposal-set-methods/pull/101) - [Iterator Helpers stage 3 proposal](https://togithub.com/tc39/proposal-iterator-helpers): - Avoid creating observable `String` wrapper objects, July 2023 TC39 meeting update, [proposal-iterator-helpers/281](https://togithub.com/tc39/proposal-iterator-helpers/pull/281) - `Iterator` is not constructible from the active function object (works as an abstract class) - Async explicit resource management: - Moved back into [the initial proposal](https://togithub.com/tc39/proposal-explicit-resource-management) -> moved to stage 3, [proposal-explicit-resource-management/154](https://togithub.com/tc39/proposal-explicit-resource-management/pull/154) - Added `/actual/` namespace entries, unconditional forced replacement changed to feature detection - Ignore return value of `[@@dispose]()` method when hint is `async-dispose`, [proposal-explicit-resource-management/180](https://togithub.com/tc39/proposal-explicit-resource-management/pull/180) - Added ticks for empty resources, [proposal-explicit-resource-management/163](https://togithub.com/tc39/proposal-explicit-resource-management/pull/163) - Added some methods from [`Float16Array` stage 3 proposal](https://togithub.com/tc39/proposal-float16array): - There are some reason why I don't want to add `Float16Array` right now, however, make sense to add some methods from this proposal. - Methods: - `Math.f16round` - `DataView.prototype.getFloat16` - `DataView.prototype.setFloat16` - Added [`DataView` get / set `Uint8Clamped` methods stage 1 proposal](https://togithub.com/tc39/proposal-dataview-get-set-uint8clamped): - Methods: - `DataView.prototype.getUint8Clamped` - `DataView.prototype.setUint8Clamped` - Used strict mode in some missed cases, [#1269](https://togithub.com/zloirock/core-js/issues/1269) - Fixed [a Chromium 117 bug](https://bugs.chromium.org/p/v8/issues/detail?id=14222) in `value` argument of `URLSearchParams.prototype.{ has, delete }` - Fixed early WebKit ~ Safari 17.0 beta `Set` methods implementation by the actual spec - Fixed incorrect `Symbol.{ dispose, asyncDispose }` descriptors from [NodeJS 20.4](https://togithub.com/nodejs/node/issues/48699) / transpilers helpers / userland code - Fixed forced polyfilling of some iterator helpers that should return wrapped iterator in the pure version - Fixed and exposed [`AsyncIteratorPrototype` `core-js/configurator` option](https://togithub.com/zloirock/core-js#asynciterator-helpers), [#1268](https://togithub.com/zloirock/core-js/issues/1268) - Compat data improvements: - Sync [`Iterator` helpers proposal](https://togithub.com/tc39/proposal-iterator-helpers) features marked as [supported](https://chromestatus.com/feature/5102502917177344) from V8 ~ Chrome 117 - [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping) features marked as [supported](https://chromestatus.com/feature/5714791975878656) from V8 ~ Chrome 117 - Mark `Symbol.{ dispose, asyncDispose }` as supported from NodeJS 20.5.0 (as mentioned above, NodeJS 20.4.0 add it, but [with incorrect descriptors](https://togithub.com/nodejs/node/issues/48699)) - Added Electron 27 compat data mapping ### [`v3.31.1`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3311---20230706) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.31.0...v3.31.1) - Fixed a `structuredClone` bug with cloning views of transferred buffers, [#1265](https://togithub.com/zloirock/core-js/issues/1265) - Fixed the order of arguments validation in `DataView` methods - Allowed cloning of [`Float16Array`](https://togithub.com/tc39/proposal-float16array) in `structuredClone` - Compat data improvements: - [`Set` methods proposal](https://togithub.com/tc39/proposal-set-methods) marked as [supported from Safari 17.0](https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes#JavaScript) - New `URL` features: [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse), [`URLSearchParams.prototype.size`](https://url.spec.whatwg.org/#dom-urlsearchparams-size) and [`value` argument of `URLSearchParams.prototype.{ has, delete }`](https://url.spec.whatwg.org/#dom-urlsearchparams-delete) marked as [supported from Safari 17.0](https://developer.apple.com/documentation/safari-release-notes/safari-17-release-notes#Web-API) - `value` argument of `URLSearchParams.prototype.{ has, delete }` marked as supported from [Deno 1.35](https://togithub.com/denoland/deno/pull/19654) - `AggregateError` and well-formed `JSON.stringify` marked as [supported React Native 0.72 Hermes](https://reactnative.dev/blog/2023/06/21/0.72-metro-package-exports-symlinks#more-ecmascript-support-in-hermes) - Added Deno 1.35 compat data mapping - Added Quest Browser 28 compat data mapping - Added missing NodeJS 12.16-12.22 compat data mapping - Updated Opera Android 76 compat data mapping ### [`v3.31.0`](https://togithub.com/zloirock/core-js/blob/HEAD/CHANGELOG.md#3310---20230612) [Compare Source](https://togithub.com/zloirock/core-js/compare/v3.30.2...v3.31.0) - [Well-formed unicode strings proposal](https://togithub.com/tc39/proposal-is-usv-string): - Methods: - `String.prototype.isWellFormed` method - `String.prototype.toWellFormed` method - Moved to stable ES, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-15.md#well-formed-unicode-strings-for-stage-4) - Added `es.` namespace modules, `/es/` and `/stable/` namespaces entries - [`Array` grouping proposal](https://togithub.com/tc39/proposal-array-grouping), [May 2023 TC39 meeting updates](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#arrayprototypegroup-rename-for-web-compatibility): - Because of the [web compat issue](https://togithub.com/tc39/proposal-array-grouping/issues/44), [moved from prototype to static methods](https://togithub.com/tc39/proposal-array-grouping/pull/47). Added: - `Object.groupBy` method - `Map.groupBy` method (with the actual semantic - with a minor difference it was present [in the collections methods stage 1 proposal](https://togithub.com/tc39/proposal-collection-methods)) - Demoted to stage 2 - [Decorator Metadata proposal](https://togithub.com/tc39/proposal-decorator-metadata), [May 2023 TC39 meeting updates](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#decorator-metadata-for-stage-3): - Moved to stage 3 - Added `Function.prototype[Symbol.metadata]` (`=== null`) - Added `/actual/` entries - [Iterator Helpers stage 3 proposal](https://togithub.com/tc39/proposal-iterator-helpers): - Changed `Symbol.iterator` fallback from callable check to `undefined` / `null` check, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#iterator-helpers-should-symboliterator-fallback-be-a-callable-check-or-an-undefinednull-check), [proposal-iterator-helpers/272](https://togithub.com/tc39/proposal-iterator-helpers/pull/272) - Removed `IsCallable` check on `NextMethod`, deferring errors to `Call` site, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-16.md#iterator-helpers-should-malformed-iterators-fail-early-or-fail-only-when-iterated), [proposal-iterator-helpers/274](https://togithub.com/tc39/proposal-iterator-helpers/pull/274) - Added [`Promise.withResolvers` stage 2 proposal](https://togithub.com/tc39/proposal-promise-with-resolvers): - `Promise.withResolvers` method - [`Symbol` predicates stage 2 proposal](https://togithub.com/tc39/proposal-symbol-predicates): - The methods renamed to end with `Symbol`, [May 2023 TC39 meeting](https://togithub.com/tc39/notes/blob/main/meetings/2023-05/may-15.md#symbol-predicates): - `Symbol.isRegistered` -> `Symbol.isRegisteredSymbol` method - `Symbol.isWellKnown` -> `Symbol.isWellKnownSymbol` method - Added `value` argument of `URLSearchParams.prototype.{ has, delete }`, [url/735](https://togithub.com/whatwg/url/pull/735) - Fixed some cases of increasing buffer size in `ArrayBuffer.prototype.{ transfer, transferToFixedLength }` polyfills - Fixed awaiting async `AsyncDisposableStack.prototype.adopt` callback, [#1258](https://togithub.com/zloirock/core-js/issues/1258) - Fixed `URLSearchParams#size` in ES3 engines (IE8-) - Added a workaround in `Object.{ entries, values }` for some IE versions bug with invisible integer keys on `null`-prototype objects - Added TypeScript definitions to `core-js-compat`, [#1235](https://togithub.com/zloirock/core-js/issues/1235), thanks [**@susnux**](https://togithub.com/susnux) - Compat data improvements: - [`Set.prototype.difference`](https://togithub.com/tc39/proposal-set-methods) that was missed in Bun because of [a bug](https://togithub.com/oven-sh/bun/issues/2309) added in 0.6.0 - `Array.prototype.{ group, groupToMap }` marked as no longer supported in WebKit runtimes because of the mentioned above web compat issue. For example, it's disabled from Bun 0.6.2 - Methods from the [change `Array` by copy proposal](https://togithub.com/tc39/proposal-change-array-by-copy) marked as supported from FF115 - [`Array.fromAsync`](https://togithub.com/tc39/proposal-array-from-async) marked as supported from FF115 - [`URL.canParse`](https://url.spec.whatwg.org/#dom-url-canparse) marked as supported from FF115 - `value` argument of `URLSearchParams.prototype.{ has, delete }` marked as supported from [NodeJS 20.2.0](https://togithub.com/nodejs/node/pull/47885) and FF115 - Added Deno 1.34 compat data mapping - Added Electron 26 compat data mapping - Added Samsung Internet 22 compat data mapping - Added Opera Android 75 and 76 compat data mapping - Added Quest Browser 27 compat data mappingConfiguration
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