Update dependency core-js to v3.43.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
core-js (source)	3.15.2 -> 3.43.0

---

Release Notes

zloirock/core-js (core-js)

v3.43.0

Compare Source

• Changes v3.42.0...v3.43.0 (139 commits)
• Explicit Resource Management proposals:
  • Built-ins:
    • Symbol.dispose
    • Symbol.asyncDispose
    • SuppressedError
    • DisposableStack
      • DisposableStack.prototype.dispose
      • DisposableStack.prototype.use
      • DisposableStack.prototype.adopt
      • DisposableStack.prototype.defer
      • DisposableStack.prototype.move
      • DisposableStack.prototype[@​@​dispose]
    • AsyncDisposableStack
      • AsyncDisposableStack.prototype.disposeAsync
      • AsyncDisposableStack.prototype.use
      • AsyncDisposableStack.prototype.adopt
      • AsyncDisposableStack.prototype.defer
      • AsyncDisposableStack.prototype.move
      • AsyncDisposableStack.prototype[@​@​asyncDispose]
    • Iterator.prototype[@​@​dispose]
    • AsyncIterator.prototype[@​@​asyncDispose]
  • Moved to stable ES, May 2025 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
• Array.fromAsync proposal:
  • Built-ins:
    • Array.fromAsync
  • Moved to stable ES, May 2025 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
• Error.isError proposal:
  • Built-ins:
    • Error.isError
  • Moved to stable ES, May 2025 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
• Added Joint iteration stage 2.7 proposal:
  • Added built-ins:
    • Iterator.zip
    • Iterator.zipKeyed
• Added Iterator chunking stage 2 proposal:
  • Added built-ins:
    • Iterator.prototype.chunks
    • Iterator.prototype.windows
• Number.prototype.clamp proposal:
  • Built-ins:
    • Number.prototype.clamp
  • Moved to stage 2, May 2025 TC39 meeting
  • Math.clamp was replaced with Number.prototype.clamp
  • Removed a RangeError if min <= max or +0 min and -0 max, tc39/proposal-math-clamp/#​22
• Always check regular expression flags by flags getter PR. Native methods are not fixed, only own implementation updated for:
  • RegExp.prototype[@​@​match]
  • RegExp.prototype[@​@​replace]
• Improved handling of RegExp flags in polyfills of some methods in engines without proper support of RegExp.prototype.flags and without polyfill of this getter
• Added feature detection for a WebKit bug that occurs when this is updated while Set.prototype.difference is being executed
• Added feature detection for a WebKit bug that occurs when iterator record of a set-like object isn't called before cloning this in the following methods:
  • Set.prototype.symmetricDifference
  • Set.prototype.union
• Added feature detection for a bug in V8 ~ Chromium < 126. Following methods should throw an error on invalid iterator:
  • Iterator.prototype.drop
  • Iterator.prototype.filter
  • Iterator.prototype.flatMap
  • Iterator.prototype.map
• Added feature detection for a WebKit bug: incorrect exception thrown by Iterator.from when underlying iterator's return method is null
• Added feature detection for a FF bug: incorrect exception thrown by Array.prototype.with when index coercion fails
• Added feature detection for a WebKit bug: TypedArray.prototype.with should truncate negative fractional index to zero, but instead throws an error
• Worked around a bug of many different tools (example) with incorrect transforming and breaking JS syntax on getting a method from a number literal
• Fixed deoptimization of the Promise polyfill in the pure version
• Added some missed dependencies to /iterator/flat-map entries
• Some other minor fixes and improvements
• Compat data improvements:
  • Added Deno 2.3 and Deno 2.3.2 compat data mapping
  • Updated Electron 37 compat data mapping
  • Added Opera Android 90 compat data mapping
  • Error.isError marked not supported in Node because of a bug
  • Set.prototype.difference marked as not supported in Safari and supported only from Bun 1.2.5 because of a bug
  • Set.prototype.{ symmetricDifference, union } marked as not supported in Safari and supported only from Bun 1.2.5 because of a bug
  • Iterator.from marked as not supported in Safari and supported only from Bun 1.2.5 because of a bug
  • Iterators closing on early errors in Iterator helpers marked as implemented from FF141
  • Array.prototype.with marked as supported only from FF140 because it throws an incorrect exception when index coercion fails
  • TypedArray.prototype.with marked as unsupported in Bun and Safari because it should truncate negative fractional index to zero, but instead throws an error
  • DisposableStack and AsyncDisposableStack marked as shipped in FF141 (SuppressedError has a bug)
  • AsyncDisposableStack bugs marked as fixed in Deno 2.3.2
  • SuppressedError bugs (extra arguments support and arity) marked as fixed in Bun 1.2.15

v3.42.0

Compare Source

• Changes v3.41.0...v3.42.0 (142 commits)
• Map upsert proposal:
  • Moved to stage 2.7, April 2025 TC39 meeting
  • Validation order of WeakMap.prototype.getOrInsertComputed updated following tc39/proposal-upsert#79
  • Built-ins:
    • Map.prototype.getOrInsert
    • Map.prototype.getOrInsertComputed
    • WeakMap.prototype.getOrInsert
    • WeakMap.prototype.getOrInsertComputed
• Don't call well-known Symbol methods for RegExp on primitive values following tc39/ecma262#3009:
  • For avoid performance regression, temporarily, only in own core-js implementations
  • Built-ins:
    • String.prototype.matchAll
    • String.prototype.match
    • String.prototype.replaceAll
    • String.prototype.replace
    • String.prototype.search
    • String.prototype.split
• Added workaround for the Uint8Array.prototype.setFromBase64 bug in some of Linux builds of WebKit
• Implemented early-error iterator closing following tc39/ecma262#3467, including fix of a WebKit bug, in the following methods:
  • Iterator.prototype.drop
  • Iterator.prototype.every
  • Iterator.prototype.filter
  • Iterator.prototype.find
  • Iterator.prototype.flatMap
  • Iterator.prototype.forEach
  • Iterator.prototype.map
  • Iterator.prototype.reduce
  • Iterator.prototype.some
  • Iterator.prototype.take
• Fixed missing forced replacement of AsyncIterator helpers
• Added closing of sync iterator when async wrapper yields a rejection following tc39/ecma262#2600. Affected methods:
  • Array.fromAsync (due to the lack of async feature detection capability - temporarily, only in own core-js implementation)
  • AsyncIterator.from
  • Iterator.prototype.toAsync
• Added detection for throwing on undefined initial parameter in Iterator.prototype.reduce (see WebKit bug)
• core-js-compat and core-js-builder API:
  • Added 'intersect' support for targets.esmodules (Babel 7 behavior)
  • Fixed handling of targets.esmodules: true (Babel 7 behavior)
• Compat data improvements:
  • Explicit Resource Management features disabled (again) in V8 ~ Chromium 135 and re-added in 136
  • RegExp.escape marked as shipped from V8 ~ Chromium 136
  • Error.isError marked as shipped from FF138
  • Explicit Resource Management features re-enabled in Deno 2.2.10
  • Iterator helpers proposal features marked as supported from Deno 1.38.1 since it seems they were disabled in 1.38.0
  • Iterator.prototype.{ drop, reduce, take } methods marked as fixed in Bun 1.2.11
  • Added NodeJS 24.0 compat data mapping
  • Updated Electron 36 and added Electron 37 compat data mapping
  • Added Opera Android 88 and 89 compat data mapping
  • Added Oculus Quest Browser 37 compat data mapping

v3.41.0

Compare Source

• Changes v3.40.0...v3.41.0 (85 commits)
• RegExp.escape proposal:
  • Built-ins:
    • RegExp.escape
  • Moved to stable ES, February 2025 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
• Float16 proposal:
  • Built-ins:
    • Math.f16round
    • DataView.prototype.getFloat16
    • DataView.prototype.setFloat16
  • Moved to stable ES, February 2025 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Math.clamp stage 1 proposal:
  • Built-ins:
    • Math.clamp
  • Extracted from old Math extensions proposal, February 2025 TC39 meeting
  • Added arguments validation
  • Added new entries
• Added a workaround of a V8 AsyncDisposableStack bug, tc39/proposal-explicit-resource-management/256
• Compat data improvements:
  • DisposableStack, SuppressedError and Iterator.prototype[@​@​dispose] marked as shipped from V8 ~ Chromium 134
  • Error.isError added and marked as shipped from V8 ~ Chromium 134
  • Math.f16round and DataView.prototype.{ getFloat16, setFloat16 } marked as shipped from V8 ~ Chromium 135
  • Iterator helpers proposal features marked as shipped from Safari 18.4
  • JSON.parse source text access proposal features marked as shipped from Safari 18.4
  • Math.sumPrecise marked as shipped from FF137
  • Added Deno 2.2 compat data and compat data mapping
    • Explicit Resource Management features are available in V8 ~ Chromium 134, but not in Deno 2.2 based on it
  • Updated Electron 35 and added Electron 36 compat data mapping
  • Updated Opera Android 87 compat data mapping
  • Added Samsung Internet 28 compat data mapping
  • Added Oculus Quest Browser 36 compat data mapping

v3.40.0

Compare Source

• Changes v3.39.0...v3.40.0 (130 commits)
• Added Error.isError stage 3 proposal:
  • Added built-ins:
    • Error.isError
  • We have no bulletproof way to polyfill this method / check if the object is an error, so it's an enough naive implementation that is marked as .sham
• Explicit Resource Management stage 3 proposal:
  • Updated the way async disposing of only sync disposable resources, tc39/proposal-explicit-resource-management/218
• Iterator sequencing stage 2.7 proposal:
  • Reuse IteratorResult objects when possible, tc39/proposal-iterator-sequencing/17, tc39/proposal-iterator-sequencing/18, December 2024 TC39 meeting
• Added a fix of V8 < 12.8 / NodeJS < 22.10 bug with handling infinite length of set-like objects in Set methods
• Optimized DataView.prototype.{ getFloat16, setFloat16 } performance, #​1379, thanks @​LeviPesin
• Dropped unneeded feature detection of non-standard %TypedArray%.prototype.toSpliced
• Dropped possible re-usage of some non-standard / early stage features (like Math.scale) available on global
• Some other minor improvements
• Compat data improvements:
  • RegExp.escape marked as shipped from Safari 18.2
  • Promise.try marked as shipped from Safari 18.2
  • Math.f16round and DataView.prototype.{ getFloat16, setFloat16 } marked as shipped from Safari 18.2
  • Uint8Array to / from base64 and hex proposal methods marked as shipped from Safari 18.2
  • JSON.parse source text access proposal features marked as shipped from FF135
  • RegExp.escape marked as shipped from FF134
  • Promise.try marked as shipped from FF134
  • Symbol.dispose, Symbol.asyncDispose and Iterator.prototype[@​@​dispose] marked as shipped from FF135
  • JSON.parse source text access proposal features marked as shipped from Bun 1.1.43
  • Fixed NodeJS version where URL.parse was added - 22.1 instead of 22.0
  • Added Deno 2.1 compat data mapping
  • Added Rhino 1.8.0 compat data with significant number of modern features
  • Added Electron 35 compat data mapping
  • Updated Opera 115+ compat data mapping
  • Added Opera Android 86 and 87 compat data mapping

v3.39.0

Compare Source

• Changes v3.38.1...v3.39.0
• Iterator helpers proposal:
  • Built-ins:
    • Iterator
      • Iterator.from
      • Iterator.prototype.drop
      • Iterator.prototype.every
      • Iterator.prototype.filter
      • Iterator.prototype.find
      • Iterator.prototype.flatMap
      • Iterator.prototype.forEach
      • Iterator.prototype.map
      • Iterator.prototype.reduce
      • Iterator.prototype.some
      • Iterator.prototype.take
      • Iterator.prototype.toArray
      • Iterator.prototype[@​@​toStringTag]
  • Moved to stable ES, October 2024 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Promise.try:
  • Built-ins:
    • Promise.try
  • Moved to stable ES, October 2024 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
  • Fixed /actual|full/promise/try entries for the callback arguments support
• Math.sumPrecise proposal:
  • Built-ins:
    • Math.sumPrecise
  • Moved to stage 3, October 2024 TC39 meeting
  • Added /actual/ namespace entries, unconditional forced replacement changed to feature detection
• Added Iterator sequencing stage 2.7 proposal:
  • Added built-ins:
    • Iterator.concat
• Map upsert stage 2 proposal:
  • Updated to the new API following the October 2024 TC39 meeting
  • Added built-ins:
    • Map.prototype.getOrInsert
    • Map.prototype.getOrInsertComputed
    • WeakMap.prototype.getOrInsert
    • WeakMap.prototype.getOrInsertComputed
• Extractors proposal moved to stage 2, October 2024 TC39 meeting
• Usage of @@​species pattern removed from %TypedArray% and ArrayBuffer methods, tc39/ecma262/3450:
  • Built-ins:
    • %TypedArray%.prototype.filter
    • %TypedArray%.prototype.filterReject
    • %TypedArray%.prototype.map
    • %TypedArray%.prototype.slice
    • %TypedArray%.prototype.subarray
    • ArrayBuffer.prototype.slice
• Some other minor improvements
• Compat data improvements:
  • Uint8Array to / from base64 and hex proposal methods marked as shipped from FF133
  • Added NodeJS 23.0 compat data mapping
  • self descriptor is fixed in Deno 1.46.0
  • Added Deno 1.46 and 2.0 compat data mapping
  • Iterator helpers proposal methods marked as shipped from Bun 1.1.31
  • Added Electron 34 and updated Electron 33 compat data mapping
  • Added Opera Android 85 compat data mapping
  • Added Oculus Quest Browser 35 compat data mapping

v3.38.1

Compare Source

• Changes v3.38.0...v3.38.1
• Fixed some cases of URLSearchParams percent decoding, #​1357, #​1361, thanks @​slowcheetah
• Some stylistic changes and minor optimizations
• Compat data improvements:
  • Iterator helpers proposal methods marked as shipped from FF131
  • Math.f16round and DataView.prototype.{ getFloat16, setFloat16 } marked as shipped from Bun 1.1.23
  • RegExp.escape marked as shipped from Bun 1.1.22
  • Promise.try marked as shipped from Bun 1.1.22
  • Uint8Array to / from base64 and hex proposal methods marked as shipped from Bun 1.1.22
  • Added Hermes 0.13 compat data, similar to React Native 0.75 Hermes
  • Added Opera Android 84 compat data mapping

v3.38.0

Compare Source

• Changes v3.37.1...v3.38.0
• RegExp.escape proposal:
  • Built-ins:
    • RegExp.escape
  • Moved to stage 3, June 2024 and July 2024 TC39 meetings
  • Updated the way of escaping, regex-escaping/77
  • Throw an error on non-strings, regex-escaping/58
  • Added /actual/ namespace entries, unconditional forced replacement changed to feature detection
• Promise.try proposal:
  • Built-ins:
    • Promise.try
  • Moved to stage 3, June 2024 TC39 meeting
  • Added /actual/ namespace entries, unconditional forced replacement changed to feature detection
• Uint8Array to / from base64 and hex stage 3 proposal:
  • Built-ins:
    • Uint8Array.fromBase64
    • Uint8Array.fromHex
    • Uint8Array.prototype.setFromBase64
    • Uint8Array.prototype.setFromHex
    • Uint8Array.prototype.toBase64
    • Uint8Array.prototype.toHex
  • Added Uint8Array.prototype.{ setFromBase64, setFromHex } methods
  • Added Uint8Array.fromBase64 and Uint8Array.prototype.setFromBase64 lastChunkHandling option, proposal-arraybuffer-base64/33
  • Added Uint8Array.prototype.toBase64 omitPadding option, proposal-arraybuffer-base64/60
  • Added throwing a TypeError on arrays backed by detached buffers
  • Unconditional forced replacement changed to feature detection
• Fixed RegExp named capture groups polyfill in combination with non-capturing groups, #​1352, thanks @​Ulop
• Improved some cases of environment detection
• Uses process.getBuiltinModule for getting built-in NodeJS modules where it's available
• Uses https instead of http in URL constructor feature detection to avoid extra notifications from some overly vigilant security scanners, #​1345
• Some minor optimizations
• Updated browserslist in core-js-compat dependencies that fixes an upstream issue with incorrect interpretation of some browserslist queries, #​1344, browserslist/829, browserslist/836
• Compat data improvements:
  • Added Safari 18.0 compat data:
    • Fixed Object.groupBy and Map.groupBy to work for non-objects
    • Fixed throwing a RangeError if Set methods are called on an object with negative size property
    • Fixed Set.prototype.symmetricDifference to call this.has in each iteration
    • Fixed Array.fromAsync to not call the Array constructor twice
    • Added URL.parse
  • Math.f16round and DataView.prototype.{ getFloat16, setFloat16 } marked as shipped from FF129
  • Symbol.asyncDispose added and marked as supported from V8 ~ Chromium 127
  • Promise.try added and marked as supported from V8 ~ Chromium 128
  • Added Deno 1.44 and 1.45 compat data mapping
  • self descriptor is broken in Deno 1.45.3 (again)
  • Added Electron 32 and 33 compat data mapping
  • Added Opera Android 83 compat data mapping
  • Added Samsung Internet 27 compat data mapping
  • Added Oculus Quest Browser 34 compat data mapping

v3.37.1

Compare Source

• Changes v3.37.0...v3.37.1
• Fixed URL.parse feature detection for some specific cases
• Compat data improvements:
  • Set methods proposal added and marked as supported from FF 127
  • Symbol.dispose added and marked as supported from V8 ~ Chromium 125
  • Math.f16round and DataView.prototype.{ getFloat16, setFloat16 } added and marked as supported from Deno 1.43
  • URL.parse added and marked as supported from Chromium 126
  • URL.parse added and marked as supported from NodeJS 22.0
  • URL.parse added and marked as supported from Deno 1.43
  • Added Rhino 1.7.15 compat data, many features marked as supported
  • Added NodeJS 22.0 compat data mapping
  • Added Deno 1.43 compat data mapping
  • Added Electron 31 compat data mapping
  • Updated Opera Android 82 compat data mapping
  • Added Samsung Internet 26 compat data mapping
  • Added Oculus Quest Browser 33 compat data mapping

v3.37.0

Compare Source

• Changes v3.36.1...v3.37.0
• New Set methods proposal:
  • Built-ins:
    • Set.prototype.intersection
    • Set.prototype.union
    • Set.prototype.difference
    • Set.prototype.symmetricDifference
    • Set.prototype.isSubsetOf
    • Set.prototype.isSupersetOf
    • Set.prototype.isDisjointFrom
  • Moved to stable ES, April 2024 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Explicit Resource Management stage 3 proposal:
  • Some minor updates like explicit-resource-management/217
• Added Math.sumPrecise stage 2.7 proposal:
  • Built-ins:
    • Math.sumPrecise
• Promise.try proposal:
  • Built-ins:
    • Promise.try
  • Added optional arguments support, promise-try/16
  • Moved to stage 2.7, April 2024 TC39 meeting
• RegExp.escape stage 2 proposal:
  • Moved to hex-escape semantics, regex-escaping/67
    • It's not the final change of the way of escaping, waiting for regex-escaping/77 soon
• Pattern matching stage 1 proposal:
  • Built-ins:
    • Symbol.customMatcher
  • Once again, the used well-known symbol was renamed
  • Added new entries for that
• Added Extractors stage 1 proposal:
  • Built-ins:
    • Symbol.customMatcher
  • Since the Symbol.customMatcher well-known symbol from the pattern matching proposal is also used in the exactors proposal, added an entry also for this proposal
• Added URL.parse, url/825
• Engines bugs fixes:
  • Added a fix of Safari { Object, Map }.groupBy bug that does not support iterable primitives
  • Added a fix of Safari bug with double call of constructor in Array.fromAsync
• Compat data improvements:
  • URL.parse added and marked as supported from FF 126
  • URL.parse added and marked as supported from Bun 1.1.4
  • URL.canParse fixed and marked as supported from Bun 1.1.0
  • New Set methods fixed in JavaScriptCore and marked as supported from Bun 1.1.1
  • Added Opera Android 82 compat data mapping

v3.36.1

Compare Source

• Changes v3.36.0...v3.36.1
• Fixed some validation cases in Object.setPrototypeOf, #​1329, thanks @​minseok-choe
• Fixed the order of validations in Array.from, #​1331, thanks @​minseok-choe
• Added a fix of Bun queueMicrotask arity
• Added a fix of Bun URL.canParse arity
• Added a fix of Bun SuppressedError extra arguments support and arity
• Compat data improvements:
  • value argument of URLSearchParams.prototype.{ has, delete } marked as supported from Bun 1.0.31
  • Added React Native 0.74 Hermes compat data, Array.prototype.{ toSpliced, toReversed, with } and atob marked as supported
  • Added Deno 1.41.3 compat data mapping
  • Added Opera Android 81 compat data mapping
  • Added Samsung Internet 25 compat data mapping
  • Added Oculus Quest Browser 32 compat data mapping
  • Updated Electron 30 compat data mapping

v3.36.0

Compare Source

• ArrayBuffer.prototype.transfer and friends proposal:
  • Built-ins:
    • ArrayBuffer.prototype.detached
    • ArrayBuffer.prototype.transfer
    • ArrayBuffer.prototype.transferToFixedLength
  • Moved to stable ES, Febrary 2024 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Uint8Array to / from base64 and hex proposal:
  • Methods:
    • Uint8Array.fromBase64
    • Uint8Array.fromHex
    • Uint8Array.prototype.toBase64
    • Uint8Array.prototype.toHex
  • Moved to stage 3, Febrary 2024 TC39 meeting
  • Added /actual/ namespace entries
  • Skipped adding new methods of writing to existing arrays to clarification some moments
• Promise.try proposal has been resurrected and moved to stage 2, Febrary 2024 TC39 meeting
• Added an entry point for the new TC39 proposals stage - core-js/stage/2.7 - still empty
• Fixed regression in Set.prototype.intersection feature detection
• Fixed a missed check in Array.prototype.{ indexOf, lastIndexOf, includes }, #​1325, thanks @​minseok-choe
• Fixed a missed check in Array.prototype.{ reduce, reduceRight }, #​1327, thanks @​minseok-choe
• Fixed Array.from and some other methods with proxy targets, #​1322, thanks @​minseok-choe
• Fixed dependencies loading for modules from ArrayBuffer.prototype.transfer and friends proposal in some specific cases in IE10-
• Dropped context workaround from collection static methods entries since with current methods semantic it's no longer required
• Added instance methods polyfills to entries of collections static methods that produce collection instances
• Added missed Date.prototype.toJSON to JSON.stringify entries dependencies
• Added debugging info in some missed cases
• Compat data improvements:
  • { Map, Object }.groupBy, Promise.withResolvers, ArrayBuffer.prototype.transfer and friends marked as supported from Safari 17.4
  • New Set methods fixed and marked as supported from V8 ~ Chrome 123
  • Added Deno 1.40 compat data mapping
  • Symbol.metadata marked as supported from Deno 1.40.4
  • Updated Electron 30 compat data mapping

v3.35.1

Compare Source

• Fixed internal ToLength operation with bigints, #​1318
• Removed significant redundant code from String.prototype.split polyfill
• Fixed setting names of methods with symbol keys in some old engines
• Minor fix of prototype methods export logic in the pure version
• Compat data improvements:
  • Iterator helpers proposal methods marked as supported from V8 ~ Chrome 122
  • Note that V8 ~ Chrome 122 add Set methods, but they have a bug similar to Safari
  • self marked as fixed from Bun 1.0.22
  • SuppressedError and Symbol.{ dispose, asyncDispose } marked as supported from Bun 1.0.23
  • Added Oculus Quest Browser 31 compat data mapping
  • Updated Electron 29 and added Electron 30 compat data mapping

v3.35.0

Compare Source

• { Map, Set, WeakMap, WeakSet }.{ from, of } became non-generic, following this and some other notes. Now they can be invoked without this, but no longer return subclass instances
• Fixed handling some cases of non-enumerable symbol keys from Symbol polyfill
• Removed unneeded NodeJS domains-related logic from queueMicrotask polyfill
• Fixed subclassing of wrapped ArrayBuffer
• Refactoring, many different minor optimizations
• Compat data improvements:
  • Array.fromAsync marked as supported from V8 ~ Chrome 121
  • It seems that the ancient Array.prototype.push bug is fixed in V8 ~ Chrome 122 (Hallelujah!)
  • ArrayBuffer.prototype.transfer and friends proposal features marked as supported from FF 122 and Bun 1.0.19
  • Object.groupBy and Map.groupBy marked as supported from Bun 1.0.19
  • Since Iterator helpers proposal methods are still not disabled in Deno, the web compatibility issue why it was disabled in Chromium makes no sense for Deno and fixed in the spec, they marked as supported from Deno 1.37
  • Added Opera Android 80 and updated Opera Android 79 compat data mapping
  • Added Samsung Internet 24 compat data mapping

v3.34.0

Compare Source

• Array grouping proposal:
  • Methods:
    • Object.groupBy
    • Map.groupBy
  • Moved to stable ES, November 2023 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Promise.withResolvers proposal:
  • Method:
    • Promise.withResolvers
  • Moved to stable ES, November 2023 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
• Fixed a web incompatibility issue of Iterator helpers proposal, proposal-iterator-helpers/287 and some following changes, November 2023 TC39 meeting
• Added Uint8Array to / from base64 and hex stage 2 proposal:
  • Methods:
    • Uint8Array.fromBase64
    • Uint8Array.fromHex
    • Uint8Array.prototype.toBase64
    • Uint8Array.prototype.toHex
• Relaxed some specific cases of Number.fromString validation before clarification of proposal-number-fromstring/24
• Fixed @@​toStringTag property descriptors on DOM collections, #​1312
• Fixed the order of arguments validation in Array iteration methods, #​1313
• Some minor atob / btoa improvements
• Compat data improvements:
  • Promise.withResolvers marked as shipped from FF121

v3.33.3

Compare Source

• Fixed an issue getting the global object on Duktape, #​1303
• Avoid sharing internal [[DedentMap]] from String.dedent proposal between core-js instances before stabilization of the proposal
• Some internal untangling
• Compat data improvements:
  • Added Deno 1.38 compat data mapping
  • Array.fromAsync marked as supported from Deno 1.38
  • Symbol.{ dispose, asyncDispose } marked as supported from Deno 1.38
  • Added Opera Android 79 compat data mapping
  • Added Oculus Quest Browser 30 compat data mapping
  • Updated Electron 28 and 29 compat data mapping

v3.33.2

Compare Source

• Simplified structuredClone polyfill, avoided second tree pass in cases of transferring
• Added support of SuppressedError 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
• Compat data improvements:
  • URL.canParse marked as supported from Chromium 120
  • Updated Opera Android 78 compat data mapping
  • Added Electron 29 compat data mapping

v3.33.1

Compare Source

• Added one more workaround of possible error with Symbol polyfill on global object, #​1289
• Directly specified type: commonjs in package.json of all packages to avoid potential breakage in future Node versions, see this issue
• 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 } marked as supported from FF119
  • Added React Native 0.73 Hermes compat data, mainly fixes of some issues
  • Added NodeJS 21.0 compat data mapping

v3.33.0

Compare Source

• Re-introduced RegExp escaping stage 2 proposal, 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 } and support transferring of ArrayBuffers via structuredClone to engines with MessageChannel
• Optimized Math.f16round polyfill
• Fixed some conversion cases of Math.f16round and DataView.prototype.{ getFloat16, setFloat16 }
• Fully forced polyfilling of the TC39 Observable proposal because of incompatibility with the new WHATWG Observable proposal
• Added an extra workaround of errors with exotic environment objects in Symbol polyfill, #​1289
• Some minor fixes and stylistic changes
• Compat data improvements:
  • V8 unshipped Iterator helpers because of some Web compatibility issues
  • Promise.withResolvers marked as supported from V8 ~ Chrome 119
  • Array grouping proposal features marked as supported from FF119
  • value argument of URLSearchParams.prototype.{ has, delete } marked as properly supported from V8 ~ Chrome 118
  • URL.canParse and URLSearchParams.prototype.size marked as supported from Bun 1.0.2
  • Added Deno 1.37 compat data mapping
  • Added Electron 28 compat data mapping
  • Added Opera Android 78 compat data mapping

v3.32.2

Compare Source

• Fixed structuredClone feature detection [email protected] bug, #​1288
• Added a workaround of old WebKit + eval bug, #​1287
• Compat data improvements:
  • Added Samsung Internet 23 compat data mapping
  • Added Quest Browser 29 compat data mapping

v3.32.1

Compare Source

• Fixed some cases of IEEE754 rounding, #​1279, thanks @​petamoriken
• Prevented injection process polyfill to core-js via some bundlers or esm.sh, #​1277
• Some minor fixes and stylistic changes
• Compat data improvements:
  • Promise.withResolvers marked as supported from Bun 0.7.1
  • Added Opera Android 77 compat data mapping
  • Updated Electron 27 compat data mapping

v3.32.0

Compare Source

• Array grouping proposal, July 2023 TC39 meeting updates:
  • Moved back to stage 3
  • Added /actual/ namespaces entries, unconditional forced replacement changed to feature detection
• Promise.withResolvers proposal, July 2023 TC39 meeting updates:
  • Moved to stage 3
  • Added /actual/ namespaces entries, unconditional forced replacement changed to feature detection
• Set methods stage 3 proposal, July 2023 TC39 meeting updates:
  • Throw on negative Set sizes, proposal-set-methods/88
  • Removed IsCallable check in GetKeysIterator, proposal-set-methods/101
• Iterator Helpers stage 3 proposal:
  • Avoid creating observable String wrapper objects, July 2023 TC39 meeting update, proposal-iterator-helpers/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://redirect.github.com/tc39/proposal-ex

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