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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.
Sorting by length works in JavaScript for all the test cases except the last one.
Sorting by length in Javascript works for the last test case outside the codewars website.
Is this a bug?