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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.
It seems like there's something wrong with the test expecting the output "#Codewars". The solution I wrote in JavaScript gives the correct output when I test it in VS Code but that test fails here.