Fixed missed es.json.stringify and some modules from iteration helpers proposal in some entry points (includes the root entry point)
Added a workaround of String#{ endsWith, startsWith } MDN polyfills bugs, #702
Fixed .size property descriptor of Map / Set in the pure version
Refactoring, some internal improvements

3.4.2

published 3.4.2 • 5 years ago

Changelog

Don't use polyfilled symbols as internal uids, a workaround for some incorrect use cases
String#replaceAll is available only in nightly FF builds
Improved Promise feature detection for the case of V8 6.6 with multiple core-js copies
Some internals optimizations
Added Node 13.2 -> V8 7.9 compat data mapping
Returned usage of node -e in postinstall scripts

3.4.1

published 3.4.1 • 5 years ago

Changelog

Throw when (Async)Iterator#flatMap mapper returns a non-iterable, per tc39/proposal-iterator-helpers/55 and tc39/proposal-iterator-helpers/59
Removed own AggregateError#toString, per tc39/proposal-promise-any/49
Global core-js Promise polyfill passes feature detection in the pure versions
Fixed indexes in String#replaceAll callbacks
String#replaceAll marked as supported by FF72

published 3.4.0 • 5 years ago

Changelog

Added well-formed JSON.stringify, ES2019 feature, thanks @ExE-Boss and @WebReflection for the idea
Fixed Math.signbit, #687, thanks @chicoxyzzy

published 3.3.6 • 5 years ago

Changelog

Don't detect Chakra-based Edge as Chrome in the userAgent parsing
Fixed inheritance in typed array constructors wrappers, #683
Added one more workaround for correct work of early fetch implementations with polyfilled URLSearchParams, #680

published 3.3.5 • 5 years ago

Changelog

Added a workaround of V8 deoptimization which causes serious performance degradation (~4x in my tests) of Array#concat, #679
Added a workaround of V8 deoptimization which causes slightly performance degradation of Promise, #679
Added (Async)Iterator.prototype.constructor -> (Async)Iterator per this issue
Added compat data for Chromium-based Edge

published 3.3.4 • 5 years ago

Changelog

Added a workaround of V8 deoptimization which causes serious performance degradation (~20x in my tests) of some RegExp-related methods like String#split, #306
Added a workaround of V8 deoptimization which causes serious performance degradation (up to 100x in my tests) of Array#splice and slightly Array#{ filter, map }, #677
Fixed work of fetch with polyfilled URLSearchParams, #674
Fixed an edge case of String#replaceAll with an empty search value
Added compat data for Chrome 80
package-lock.json no longer generated in libraries