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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 suck, i'm sorry.
Javascript doesn't have classic nested arrays [[0,2],[2,0]], so why does it look like it is tested using these? Could anyone explain it to me?
I think the problem might be, that you really need to check for each customer if your 25s aren't under zero, not just at the end.