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I wonder how hard it would be to make JS compile to Erlang like Elixir. I think the big problem would be some kind of actor model in the browser with everything callback based. Other than that, they're both dynamically typed, functional (Erlang obviously more) languages.

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It's possible, but you can also end up with monstrosities like GWT in the end. The best bet is to implement some Actor-like layer like https://github.com/Gozala/actor upon which the "ErlangScript" depends.

Oh wait, JS compile to Erlang? Wouldn't it make sense to do it the other way around?

I think it makes more sense to go JS -> Erlang, because the valuable thing about JS is the language itself (and trying to achieve code sharing), while the valuable thing about Erlang is the vm/concurrency model/OTP.

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