Twostroke

Twostroke is a Javascript implementation written in pure Ruby. It currently consists of:

A hand-written parser
A TSASM compiler (Twostroke's internal bytecode format)
A VM that runs TSASM bytecode
A minimal Javascript standard library implementation
A test suite containing:
- Some tests written for Twostroke
- Underscore.js's complete test suite (minus the cases relying on the DOM)
- Parts of mootools' test suite

Why use Twostroke?

yep, that's unmodified underscore.js:

Name		Name	Last commit message	Last commit date
Latest commit History 328 Commits
lib		lib
test		test
.gitignore		.gitignore
.travis.yml		.travis.yml
Gemfile		Gemfile
LICENSE		LICENSE
README.md		README.md
compile.rb		compile.rb
disasm.rb		disasm.rb
parse.rb		parse.rb
repl.js		repl.js
repl.rb		repl.rb
runner.rb		runner.rb
test.rb		test.rb
twostroke.gemspec		twostroke.gemspec