Ask HN: Best Coding Kata website?

[guiomie]

I'm looking to do some Katas once every 2-3 days at the beginning of the day.

What is your recommendation for a really good website with lots of "must-know" examples? Also, it would be nice to be able to directly test the Kata in the browser.

[zachlatta]

I'm a big fan of Codewars (http://www.codewars.com/). I'm not sure if I'd consider it Kata though.

[vamega → zachlatta]

Signup seems to not be working for me. I keep seeing a bar on the top that says "undefined method `[]' for nil:NilClass"

[guiomie → zachlatta]

Pretty cool. Is this just javascript based?

[zachlatta → guiomie]

Yeah, with Rails on the backend.

[blackhorus]

I found this one more interesting http://www.reddit.com/r/dailyprogrammer

[guiomie → blackhorus]

Really good. Is there a collection of basic "industry" katas to start with that you are aware?

[s3b]

Check out http://programmingpraxis.com/