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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.
@p7r But it's also more optimized. O(n) vs. O(n^2).
clever one +1
Obviously this is quite elegant, but it's also not obvious to anybody who stumbles across it.
So clever, but in production code this feels like obfuscation.