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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.
prepend+1Not sure about the
range.to_a. I like way to dried up the method defs.I should try harder to avoid
method_missing.+1 modules
Your solution looks great. Very consise. Mine was very naive.