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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.
OK, recursion is bad for this.
I solved it in iteration methos.
Exactly.
Too slow in JS and I cannot see a better way for this other than recursion.
When I try (-50) I don't even see the process ends.