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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 dont even know what filtering function is
Agreed:
filterlies in the paradigm of functional programming, and the proposed answers relies oncountto keep some permanent state (in fact, modifyingccounter, whilefilterdoes the looping).So, while I find it clever, this solution is not easy to understand.
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