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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
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I think a test case for this is needed.
It would be nice to easily look at the code of own submissions. Also it would be nice to have a way to reuse utility function one writes. I guess a place for copy-pasting them would be enough.
Ok, now I can see the "Is this kata ready to come out of beta?". But under "How difficult do you think this kata is?" I see only "You must complete this kata before you can rank it".
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I think the description should say "You can't use number literals in your source code." instead of "You can't use numbers in your source code.".
Also the test case error for used number literals should say "used" instead of "returned".
I don't see a possibility to vote on beta katas I solved.