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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.
Wait, we have to use that? I didn't realize what was the meaning of "higher order function", my bad. Thanks for reminding me.
misssed the higher order functions topic ?