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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.
I had word 'finding' within my comment block and this made my code fail with the following message: 'Array.prototype.find is prohibited'. I guess it should be allowed to use this word inside comments?
Other than that - great!