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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 feel this is a bit more idiomatic Scala -> https://www.codewars.com/kumite/62dee28445c660003d67792b?sel=62dee28445c660003d67792b
looks fine
looks good to me
looks fine to me
this one looks ok to me :)
looks good to me