[plf]

I'm learning CoffeeScript right now, is what I write using it always valid JavaScript?

[ricardobeat]

The valid CoffeeScript you write is always valid JavaScript :)

[plf]

Can there be invalid CoffeScript?

[ricardobeat]

of course, why not? any syntax can be broken.

[plf]

I meant something that would not be detected when compiling to JavaScript from CoffeeScript. Maybe I got it all wrong and CoffeeScript just translates without performing any checks. Also I thought maybe the subset of code you can write with CoffeeScript can't be invalid, if it were wrong it just wouldn't work.