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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.
good update with !![] to get 1s, but template literal really looks like cheating
still good improvement
Shortened previous kata with template literals, and true/false Arrays converted into 1's & 0's
Great code.
Great kata.