Releases v3.49.0
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Changes v3.48.0...v3.49.0 (373 commits)
Iterator.range
Throw a RangeError on NaN start / end / step
Allow null as optionOrStep
Improved accuracy of Math.{ asinh, atanh } polyfills with big and small values
Improved accuracy of Number.prototype.toExponential polyfills with big and small values
Improved performance of atob, btoa, Uint8Array.fromHex, Uint8Array.prototype.setFromHex, and Uint8Array.prototype.toHex, #1503 , #1464 , #1510 , thanks @johnzhou721
Minor performance optimization polyfills of methods from Map upsert proposal
Polyfills of methods from Map upsert proposal
Wrap Symbol.for in Symbol.prototype.description polyfill for correct handling of empty string descriptions
Fixed a modern Safari bug in Array.prototype.includes with sparse arrays and fromIndex
Fixed one more case (Iterator.prototype.take) of a V8 ~ Chromium < 126 bug
Forced replacement of Iterator.{ concat, zip, zipKeyed } in the pure version for ensuring proper wrapped Iterator instances as the result
Fixed proxying .return() on exhausted iterator from some methods of iterator helpers polyfill to the underlying iterator
Fixed double .return() calling in case of throwing error in this method in the internal iterate helper that affected some polyfills
Fixed closing iterator on IteratorValue errors in the internal iterate helper that affected some polyfills
Fixed iterator closing in Array.from polyfill on failure to create array property
Fixed order of arguments validation in Array.fromAsync polyfill
Fixed a lack of counter validation on MAX_SAFE_INTEGER in Array.fromAsync polyfill
Fixed order of arguments validation in Array.prototype.flat polyfill
Fixed handling strings as iterables in Iterator.{ zip, zipKeyed } polyfills
Fixed some cases of iterators closing in Iterator.{ zip, zipKeyed } polyfills
Fixed validation of iterators .next() results an objects in Iterator.{ zip, zipKeyed } polyfills
Fixed a lack of early error in Iterator.concat polyfill on primitive as an iterator
Fixed buffer mutation exposure in Iterator.prototype.windows polyfill
Fixed iterator closing in Set.prototype.{ isDisjointFrom, isSupersetOf } polyfill
Fixed (updated following the final spec) one more case Set.prototype.difference polyfill with updating this
Fixed DataView.prototype.setFloat16 polyfill in (0, 1) range
Fixed order of arguments validation in String.prototype.{ padStart, padEnd } polyfills
Fixed order of arguments validation in String.prototype.{ startsWith, endsWith } polyfills
Fixed some cases of Infinity handling in String.prototype.substr polyfill
Fixed String.prototype.repeat polyfill with a counter exceeding 2 ** 32
Fixed some cases of chars case in escape polyfill
Fixed named backreferences in RegExp NCG polyfill
Fixed some cases of RegExp NCG polyfill in combination with other types of groups
Fixed some cases of RegExp NCG polyfill in combination with dotAll
Fixed String.prototype.replace with sticky polyfill, #810 , #1514
Fixed RegExp sticky polyfill with alternation
Fixed handling of some line terminators in case of multiline + sticky mode in RegExp polyfill
Fixed .input slicing on result object with RegExp sticky mode polyfill
Fixed handling of empty groups with global and unicode modes in polyfills
Fixed URLSearchParam.prototype.delete polyfill with duplicate key-value pairs
Fixed possible removal of unnecessary entries in URLSearchParam.prototype.delete polyfill with second argument
Fixed an error in some cases of non-special URLs without a path in the URL polyfill
Fixed some percent encode cases / character sets in the URL polyfill
Fixed parsing of non-IPv4 hosts ends in a number in the URL polyfill
Fixed some cases of '' and null host handling in the URL polyfill
Fixed host parsing with hostname = host:port in the URL polyfill
Fixed host inheritance in some cases of file scheme in the URL polyfill
Fixed block of protocol change for file with empty host in the URL polyfill
Fixed invalid code points handling in UTF-8 decode in the URLSearchParams polyfill
Fixed some cases of serialization in URL polyfill (/. prefix for non-special URLs with null host and path starting with empty segment)
Fixed URL polyfill .origin getter with blob scheme
Fixed a lack of error in URLSearchParams.prototype.set polyfill on calling only with 1 argument
Fixed handling invalid UTF-8 continuation bytes in URLSearchParams polyfill
Fixed incomplete sequences with out-of-range continuation bytes handling in URLSearchParams polyfill
Fixed allowing unexpected symbols in scheme in the URL polyfill
Fixed repeated ToPropertyKey calling in Reflect.{ get, set, deleteProperty } polyfills
Fixed Reflect.set polyfill with some descriptors cases
Fixed Reflect.set polyfill with some non-extensible receiver cases
Fixed the order of Reflect.construct polyfill arguments validation (observable only in the error message)
Fixed a lack of error in Reflect.defineProperty polyfill with malformed descriptor
Fixed a lack of error in JSON.parse polyfill on unterminated object and array literals
Fixed a lack of error in JSON.parse polyfill on numbers with ., but without a fraction part
Fixed a lack of error on \u{} in String.dedent polyfill
Fixed some cases of hex escaping in the end of string in String.dedent polyfill
Fixed %AsyncFromSyncIteratorPrototype% to make it a little stricter
Fixed counter in some cases of some AsyncIterator methods
Fixed order of async iterators closing
Fixed iterator closing in AsyncIterator.prototype.flatMap polyfill
Fixed iterator closing in AsyncIterator.prototype.map polyfill on error in underlying iterator .next()
Fixed iterator closing in AsyncIterator.prototype.take polyfill with return: null
Fixed validation .return() result as object in AsyncIterator.prototype.take polyfill
Fixed a lack of error in structuredClone polyfill on attempt to transfer multiple objects, some of which are non-transferable
Fixed resizable ArrayBuffer transferring where newByteLength exceeds the original maxByteLength
Fixed possible loss of symbol enumerability in Object.defineProperty in Symbol polyfill
Fixed return value of Object.defineProperty in Symbol polyfill in Android ~ 2
Fixed order of %TypedArray%.from arguments validation
Fixed a lack of error on passing an ArrayBuffer and a negative length to the %TypedArray% and DataView constructors polyfills
Fixed some cases of @@toStringTag on %TypedArray% polyfill
Fixed some cases of ToUint8Clamp conversion
Fixed NaN handling in Date.prototype.setYear polyfill
Fixed false positive on a WeakMap validation in the pure version
Fixed some minor { Map, Set }.prototype.forEach moments in the pure version
Fixed possible error in Array.isTemplateObject polyfill on frozen array
Fixed semantics of Observable.from with multiple subscriptions of the obsolete ECMAScript Observable proposal polyfill
Fixed handling of ending zeroes in the fraction part in Number.fromString polyfill
Fixed esmodules: intersect option of core-js-compat
Fixed a lack of reactnative alias in core-js-compat types
Fixed a minor logical bug in the debugging output of core-js-builder
Fixed ignorance of the obsolete blacklist option of core-js-builder - it should be removed only in the next major release
In case of bugs in String.prototype.{ match, matchAll, replace, split } in modern engines, add s, d and v flag support to polyfills of those methods
Just in case, added an extra input string validation to the polyfill of obsolete Number.fromString proposals
Simplified iOS detection
Many minor stylistic fixes and optimizations
Compat data improvements:
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