The UX is amazing. Good job!

The domain name itself is awesome. How much did it cost?

I'd think that Oracle would like at least a mention of their trademark on this domain...

https://news.ycombinator.com/item?id=8344049

Minor bug:

On https://www.javascript.com/try when submitting more than one command a horizontal scroll bar appeared and blocked my view of what I was typing at the bottom of the console. (Making the console unusable.)

I fixed it by sticking overflow-x: hidden; onto the element's style. A bodged fix, but the bug should probably be looked into.

Using latest Chrome on Windows 7.

Seems like an interesting concept, but I still find crowdsourced tutorial websites far better and up-to-date. Example: http://hackr.io/tutorials/javascript

Very nice design and UX, indeed. I'd love to see other languages on that 'platform', too.

Oh, and... "Don't be afraid when a box pops up — that's your code working, Penis!"

I'm sorry. I really tried, but I couldn't resist.

meh. "Web 3.0".