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I cannot vote this up enough. It really is such a different experience to developing in "plain" JavaScript.

• echelon 11y ago
  It's so much more pleasant to write and maintain than wild, un(type)safe javascript.
  • acjohnson55 11y ago
    Only problem is that it's not sound. That means that while it may provide static checking that your program is validly linked together, it can't fully prevent run-time type errors. And kind of like you can't be "a little pregnant", you can't be "a little typesafe".
    • JoeAltmaier 11y ago
      Of course you can. Can't catch all the bugs; but can catch some of them. Which saves time and money. It doesn't actually have to be perfect to be useful and helpful.
      • acjohnson55 11y ago
        I'm not saying it doesn't help. I'm saying you can't count on it the same way you can if you're working in a truly end-to-end statically typed environment. Even Scala's type system has its leaks, due to nulls.