A(n incomplete) Javascript implementation in Ruby!
JavaScript Ruby
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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?

It's cool:


It actually works:

yep, that's unmodified underscore.js:

tests lol