2.1.0 - 2016.02.09
- API:
- ES5 polyfills are split and logic, used in other polyfills, moved to internal modules
- All entry point works in ES3 environment like IE8- without
core-js/(library/)es5
- Added all missed single entry points for ES5 polyfills
- Separated ES5 polyfills moved to the ES6 namespace. Why?
- Mainly, for prevent duplication features in different namespaces - logic of most required ES5 polyfills changed in ES6+:
- Already added changes for:
Object
statics - should accept primitives, new whitespaces lists inString#trim
,parse(Int|float)
,RegExp#toString
logic,String#split
, etc - Should be changed in the future:
@@species
andToLength
logic inArray
methods,Date
parsing,Function#bind
, etc - Should not be changed only several features like
Array.isArray
andDate.now
- Already added changes for:
- Some ES5 polyfills required for modern engines
- Mainly, for prevent duplication features in different namespaces - logic of most required ES5 polyfills changed in ES6+:
- All old entry points should work fine, but in the next major release API can be changed
- All entry point works in ES3 environment like IE8- without
Object.getOwnPropertyDescriptors
moved to the stage 3, January TC39 meeting- Added
umd
option for custom build process, #169 - Returned entry points for
Array
statics, removed in2.0
, for compatibility withbabel
6
and for future fixes
- ES5 polyfills are split and logic, used in other polyfills, moved to internal modules
- Deprecated:
Reflect.enumerate
deprecated and will be removed from the next major release, January TC39 meeting
- New Features:
- Added
Reflect
metadata API as a pre-strawman feature, #152:Reflect.defineMetadata
Reflect.deleteMetadata
Reflect.getMetadata
Reflect.getMetadataKeys
Reflect.getOwnMetadata
Reflect.getOwnMetadataKeys
Reflect.hasMetadata
Reflect.hasOwnMetadata
Reflect.metadata
- Implementation / fixes
Date#toJSON
- Fixes for
parseInt
andNumber.parseInt
- Fixes for
parseFloat
andNumber.parseFloat
- Fixes for
RegExp#toString
- Fixes for
Array#sort
- Fixes for
Number#toFixed
- Fixes for
Number#toPrecision
- Additional fixes for
String#split
(RegExp#@@split
)
- Added
- Improvements:
- Correct subclassing wrapped collections,
Number
andRegExp
constructors with native class syntax - Correct support
SharedArrayBuffer
and buffers from other realms in typed arrays wrappers - Additional validations for
Object.{defineProperty, getOwnPropertyDescriptor}
andReflect.defineProperty
- Correct subclassing wrapped collections,
- Bug Fixes:
- Fixed some cases
Array#lastIndexOf
with negative second argument
- Fixed some cases
And, as I wrote, I stop active core-js
development before finding related work. I already have no money for repairing my PC :) If you wanna progress in core-js
- feel free contribute to the project or propose me a good work.