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Ask HN: Best Coding Kata website?

14 points by guiomie ↗ HN
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.

7 comments

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zachlatta
I'm a big fan of Codewars (http://www.codewars.com/). I'm not sure if I'd consider it Kata though.
vamega
Signup seems to not be working for me. I keep seeing a bar on the top that says "undefined method `[]' for nil:NilClass"
guiomie
Pretty cool. Is this just javascript based?
zachlatta
Yeah, with Rails on the backend.