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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.
Question! does it return 0 when the array is empty or has just a 0? I guess so. It wouldn't be approve otherwise but I was not sure about it and my approach was pretty similar instead I used v -> v >= 0, maybe unnecesary after a double check 🤔