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fix(deps): update dependency core-js to v3.49.0#467

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abrain merged 1 commit intodevelopfrom
renovate/core-js-3.x
Mar 21, 2026
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fix(deps): update dependency core-js to v3.49.0#467
abrain merged 1 commit intodevelopfrom
renovate/core-js-3.x

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This PR contains the following updates:

Package Type Update Change
core-js (source) dependencies minor 3.48.0 -> 3.49.0

Release Notes

zloirock/core-js (core-js)

v3.49.0

Compare Source

  • Changes v3.48.0...v3.49.0 (373 commits)
  • Iterator.range updated following the actual spec version
    • 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 from the pure version made generic to make it work with polyfilled and native collections
  • 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 @@&#8203;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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codecov bot commented Mar 21, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.68%. Comparing base (e04e164) to head (c765c47).
⚠️ Report is 8 commits behind head on develop.

Additional details and impacted files
@@           Coverage Diff            @@
##           develop     #467   +/-   ##
========================================
  Coverage    63.68%   63.68%           
========================================
  Files           83       83           
  Lines         1005     1005           
  Branches        89       89           
========================================
  Hits           640      640           
  Misses         351      351           
  Partials        14       14           
Flag Coverage Δ
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@abrain abrain merged commit 0cafd7c into develop Mar 21, 2026
6 checks passed
@abrain-bot abrain-bot deleted the renovate/core-js-3.x branch March 21, 2026 15:26
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3 participants