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# TBD
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TODO
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Features:
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- [FEATURE #74](https://github.com/jasonwilliams/boa/issues/74):
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Enables Boa to run within the Test 262 framework.
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This will help us see what is implemented or not within the spec
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# Next
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Feature enhancements:
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- [FEATURE #119](https://github.com/jasonwilliams/boa/issues/119):
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Introduce realm struct to hold realm context and global object
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Bug fixes:
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- [BUG #113](https://github.com/jasonwilliams/boa/issues/113):
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Unassigned variables have default of undefined (@pop)
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# 0.4.0 (2019-09-25)
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v0.4.0 brings quite a big release. The biggest feature to land is the support of regular expressions.
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Functions now have the arguments object supported and we have a [`debugging`](docs/debugging.md) section in the docs.
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Feature enhancements:
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- [FEATURE #6](https://github.com/jasonwilliams/boa/issues/6):
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Support for regex literals. (Big thanks @999eagle)
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- [FEATURE #13](https://github.com/jasonwilliams/boa/issues/13):
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toLowerCase, toUpperCase, substring, substr and valueOf implemented (thanks @arbroween)
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- Support for `arguments` object within functions
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- `StringData` instead of `PrimitieData` to match spec
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- Native function signatures changed, operations added to match spec
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- Primitives can now be boxed/unboxed when methods are ran on them
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- Spelling edits (thanks @someguynamedmatt)
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- Ability to set global values before interpreter starts (thanks @999eagle)
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- Assign operators implemented (thanks @oll3)
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-
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Bug fixes:
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- [BUG #57](https://github.com/jasonwilliams/boa/issues/57):
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Fixed issue with stackoverflow by implementing early returns.
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- Allow to re-assign value to an existing binding. (Thanks @oll3)
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# 0.3.0 (2019-07-26)
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- UnexpectedKeyword(Else) bug fixed https://github.com/jasonwilliams/boa/issues/38
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- Contributing guide added
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- Ability to specify file - Thanks @callumquick
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- Travis fixes
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- Parser Tests - Thanks @Razican
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- Migrate to dyn traits - Thanks @Atul9
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- Added implementations for Array.prototype: concat(), push(), pop() and join() - Thanks @callumquick
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- Some clippy Issues fixed - Thanks @Razican
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- Objects have been refactored to use structs which are more closely aligned with the specification
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- Benchmarks have been added
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- String and Array specific console.log formats - Thanks @callumquick
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- isPropertyKey implementation added - Thanks @KrisChambers
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- Unit Tests for Array and Strings - Thanks @GalAster
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- typo fix - Thanks @palerdot
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- dist cleanup, thanks @zgotsch
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# 0.2.1 (2019-06-30)
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Some String prototype methods are implemented.
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Thanks to @lennartbuit we have
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trim/trimStart/trimEnd added to the string prototype
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Feature enhancements:
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- [String.prototype.concat ( ...args )](https://tc39.es/ecma262/#sec-string.prototype.slice)
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- [String.prototype.endsWith ( searchString [ , endPosition ] )](https://tc39.es/ecma262/#sec-string.prototype.endswith)
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- [String.prototype.includes ( searchString [ , position ] )](https://tc39.es/ecma262/#sec-string.prototype.includes)
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- [String.prototype.indexOf ( searchString [ , position ] )](https://tc39.es/ecma262/#sec-string.prototype.indexof)
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- [String.prototype.lastIndexOf ( searchString [ , position ] )](https://tc39.es/ecma262/#sec-string.prototype.lastindexof)
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- [String.prototype.repeat ( count )](https://tc39.es/ecma262/#sec-string.prototype.repeat)
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- [String.prototype.slice ( start, end )](https://tc39.es/ecma262/#sec-string.prototype.slice)
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- [String.prototype.startsWith ( searchString [ , position ] )](https://tc39.es/ecma262/#sec-string.prototype.startswith)
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Bug fixes:
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- Plenty
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# 0.2.0 (2019-06-10)
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Working state reached
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- Tests on the lexer, conforms with puncturators and keywords from TC39 specification
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- wasm-bindgen added with working demo in Web Assembly
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- snapshot of boa in a working state for the first time
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