Standard Library
Set methods proposal:
Set.prototype.intersection
Set.prototype.union
Set.prototype.difference
Set.prototype.symmetricDifference
Set.prototype.isSubsetOf
Set.prototype.isSupersetOf
Set.prototype.isDisjointFrom
es. namespace modules, /es/ and /stable/ namespaces entriesMath.sumPrecise stage 2.7 proposal:
Math.sumPrecise
Promise.try proposal:
Promise.try
RegExp.escape stage 2 proposal:
Symbol.customMatcher
Symbol.customMatcher
Symbol.customMatcher well-known symbol from the pattern matching proposal is also used in the exactors proposal, added an entry also for this proposalURL.parse, url/825
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
Set methods fixed in JavaScriptCore and marked as supported from Bun 1.1.1Object.setPrototypeOf, #1329, thanks @minseok-choe
Array.from, #1331, thanks @minseok-choe
queueMicrotask arity
URL.canParse arity
SuppressedError extra arguments support and arity
value argument of URLSearchParams.prototype.{ has, delete } marked as supported from Bun 1.0.31
Array.prototype.{ toSpliced, toReversed, with } and atob marked as supportedArrayBuffer.prototype.transfer and friends proposal:
ArrayBuffer.prototype.detached
ArrayBuffer.prototype.transfer
ArrayBuffer.prototype.transferToFixedLength
es. namespace modules, /es/ and /stable/ namespaces entriesUint8Array to / from base64 and hex proposal:
Uint8Array.fromBase64
Uint8Array.fromHex
Uint8Array.prototype.toBase64
Uint8Array.prototype.toHex
/actual/ namespace entriesPromise.try proposal has been resurrected and moved to stage 2, Febrary 2024 TC39 meeting
core-js/stage/2.7 - still emptySet.prototype.intersection feature detectionArray.prototype.{ indexOf, lastIndexOf, includes }, #1325, thanks @minseok-choe
Array.prototype.{ reduce, reduceRight }, #1327, thanks @minseok-choe
Array.from and some other methods with proxy targets, #1322, thanks @minseok-choe
ArrayBuffer.prototype.transfer and friends proposal in some specific cases in IE10-Date.prototype.toJSON to JSON.stringify entries dependencies{ Map, Object }.groupBy, Promise.withResolvers, ArrayBuffer.prototype.transfer and friends marked as supported from Safari 17.4
Set methods fixed and marked as supported from V8 ~ Chrome 123Symbol.metadata marked as supported from Deno 1.40.4
Early release for testing some conceptions.
NOT FOR USAGE IN REAL PROJECTS.
See more info here: https://github.com/zloirock/core-js/pull/1310
ToLength operation with bigints, #1318
String#split polyfillIterator helpers proposal methods marked as supported from V8 ~ Chrome 122Set methods, but they have a bug similar to Safari
self marked as fixed from Bun 1.0.22SuppressedError and Symbol.{ dispose, asyncDispose } marked as supported from Bun 1.0.23
{ 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 instancesSymbol polyfillqueueMicrotask polyfillArrayBuffer
Array.fromAsync marked as supported from V8 ~ Chrome 121
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 1.0.19Object.groupBy and Map.groupBy marked as supported from Bun 1.0.19Iterator 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 1.37Array grouping proposal:
Object.groupBy
Map.groupBy
es. namespace modules, /es/ and /stable/ namespaces entriesPromise.withResolvers proposal:
Promise.withResolvers
es. namespace module, /es/ and /stable/ namespaces entriesIterator helpers proposal, proposal-iterator-helpers/287 and some following changes, November 2023 TC39 meetingUint8Array to / from base64 and hex stage 2 proposal:
Uint8Array.fromBase64
Uint8Array.fromHex
Uint8Array.prototype.toBase64
Uint8Array.prototype.toHex
Number.fromString validation before clarification of proposal-number-fromstring/24
@@toStringTag property descriptors on DOM collections, #1312
Array iteration methods, #1313
atob / btoa improvementsPromise.withResolvers marked as shipped from FF121[[DedentMap]] from String.dedent proposal between core-js instances before stabilization of the proposalArray.fromAsync marked as supported from Deno 1.38
Symbol.{ dispose, asyncDispose } marked as supported from Deno 1.38
structuredClone polyfill, avoided second tree pass in cases of transferringSuppressedError to structuredClone polyfillArrayBuffer and DataView dependencies of structuredClone lack of which could cause errors in some entries in IE10-Number.fromString
URL.canParse marked as supported from Chromium 120
Symbol polyfill on global object, #1289
type: commonjs in package.json of all packages to avoid potential breakage in future Node versions, see this issue
String.prototype.{ isWellFormed, toWellFormed } marked as supported from FF119