Kaffeine.js - A cleaned up JavaScript

Well, I found one language pretty close to what I was looking for in a better JavaScript:

http://weepy.github.com/kaffeine/

• Backwards compatible with JavaScript
• Uses @foo to to get the "real" this.foo
• Uses CPS folding to flatten callbacks
• Multiline strings, which come in handy
• for(n of [1, 2, 3]) array iteration
• String interpolation: "#{foo} was here"
• Implicit functions: (foo) { alert(foo); }
• Pipe operator for chaining the first arg
• Default arguments, optional call parens
• Implicit return (nice with implicit funcs)

Out of those, I think callback unfolding and the pipe operator are the most interesting beyond adding some niceties:

  ok = stomach.save!()
  meal.complete = ok

translates to:

  stomach.save(function(ok) {
    meal.complete = ok
  })

and...

  result = input | fn args

translates to:

  result = __.fn.call(this, input, args)