Comment by spinlock

That's like saying you won't use Rails because it's written in Ruby and not C.

Also, it's nice to work in a language that has the right features and not just all the features. I like CoffeeScript as much for what it doesn't have as for what it does have. I recently saw this piece of code:

    new Array(26)
      .map(function (item, index) {
        return String.fromCharCode(65 + index);
    })

as a "heads up" for map lovers. That's the kind of code that people write when they're tacking the latest new feature onto someplace that it doesn't belong. This code isn't just semantically wrong, it's stylistically wrong. Having a less schizophrenic language helps jr guys avoid code like the above.