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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.
That is GENIUS
I didnt post that soln, but if you just started learning javascript, this is the most easiest to understand.
This else-if chain is not fast and it's completely unmaintainable. :/