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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.
A beter pratice is to remove else and use a early return
Copied and pasted your code and they passed just fine. Not a kata issue. Click Reset in case you have messed them up.
The ruby sample tests are not passing
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