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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.
The test for 9 still expects a return of 3 in JavaScript instead of 2. Based on these comments I assumed this had been fixed, but it doesn't appear so. Is this solvable in JavaScript at this point?