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What's new/exciting/different about ClojureScript? No one has really made it clear here.

Edit: Trimmed unnecessary banter as it's a genuine question.

What would you expect to be different? Your post says the important point: it's Clojure. For some an additonal point is that it's not JavaScript. There is nothing deeper than that.

If that's the most important point I fail to understand why it's #1 Hacker News, sorry. This makes HN no better than a "hype engine" as some say. If someone would at least mention that Google Closure makes it pretty neat, then I would have let it go, so to say.

Even worse, two other relevant Clojure libs are mentioned and the important point is still "it's Clojure"?

The other libraries are clojure libs that implement javascript analogies[1] as clojure macros and functions and generate javascript.

ClojureScript is a Clojure The Language compiler that implements Clojure (its datastructures, standard lib, protocols, deftypes etc etc) and is hosted[2] on javascript rather than the JVM.

In ClojureScript you are not writing reskinned javascript, you are writing Clojure.

[1] simplified for the argument

[2] By outputting javascript

Aha! Great, this is definitely pretty awesome. I don't think anyone's written something like that in Common Lisp yet.

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