[dollaholla]

Is there a JS equivalent of something like this out there?

[ammon]

If people like this, we'll be creating more version (in different languages, and drilling into different areas)

[dotancohen]

Judging by other people's comments, this would be a good quiz if it was written in their favorite language.

The quiz doesn't seem too hard to port (ha, I've heard "it won't be hard to write" before). I think that a good approach might be to let the user see the code in multiple languages via tabs or an interactive select element, like the MSDN docs do.