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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'm very happy you found it helpful! I definitely drew inspiration from other resources to understand and solve this problem, so it's cool to know I passed on the knowledge to somebody else's solution process.
Your improvements and generalized, cached solution are awesome! Great work! :-)
I agree with you that it's Clever but not Best Practice. However, it's not up to me, it's up to these beautiful people...