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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.
Yeah, mine asked for a HashMap too. And we have the same solutions. I would say we are good. :)
Yeah, this is quite clever. And if you know regex, you can kind-of understand at the first glance what's going on.
But wouldn't want to have it production. :D
My solution is muuuuuch worse, and not even close to being as cool as this one.