zloirock/core-js v2.1.0

2.1.0 - 2016.02.09

on GitHub

• 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 in String#trim, parse(Int|float), RegExp#toString logic, String#split, etc
        • Should be changed in the future: @@species and ToLength logic in Array methods, Date parsing, Function#bind, etc
        • Should not be changed only several features like Array.isArray and Date.now
      • Some ES5 polyfills required for modern engines
    • All old entry points should work fine, but in the next major release API can be changed
  • 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 in 2.0, for compatibility with babel 6 and for future fixes
• 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 and Number.parseInt
  • Fixes for parseFloat and Number.parseFloat
  • Fixes for RegExp#toString
  • Fixes for Array#sort
  • Fixes for Number#toFixed
  • Fixes for Number#toPrecision
  • Additional fixes for String#split (RegExp#@@split)
• Improvements:
  • Correct subclassing wrapped collections, Number and RegExp constructors with native class syntax
  • Correct support SharedArrayBuffer and buffers from other realms in typed arrays wrappers
  • Additional validations for Object.{defineProperty, getOwnPropertyDescriptor} and Reflect.defineProperty
• Bug Fixes:
  • Fixed some cases Array#lastIndexOf with negative second argument

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.