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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.
You could just write: "return counter0 == counterX"
You could just write "return num == 0;"
Now you are saying: if true than return true, else if false than return false.
You could just say: return true/false