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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.
Is there someone I can ask about how this works? It's one of the few katas I've skipped over and want to gain an understanding for it. I can read how the hashes translate over, but I'm unfamiliar with the rest of the code.
same error it gives the output is supposed to be [0,1] for [0,1,2,3]