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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.
Awesome! Really cool pattern of always returning an undo function and adding it to the opposite list, nice work
Nice! Really readable and reusable.
Many of us, including me, forgot to lowercase the remainder of the word. It may have not been tested, but I think it should be important! Nice, clean work!