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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 can. What OP did is use the .slice() method, which removes the first and last portion of the string. Your method is still valid (and is what I ddi too).
Wish I would have thought of this. Great logic.
Short and sweet!
Supervisor: "How did it take you that long to code this portion out?"
You: shrug