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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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If I may ask - any reason why you chose this solution? Something about code speed maybe?
Love the check for zero using conversion to logical!
Man, this was messing with my head. Love your extra effort to work without loops! :)