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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.
closing
Because you weren't returning the recursive call. Also, read this: https://docs.codewars.com/training/troubleshooting#expected-the-same
In my console code works perfect. Here doesnt work and i cannot understand why.
Error: expected undefined to equal 7. In my console result is equal to 7. Can explain someone this error?