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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.
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const arr = arraydoes not create a copy of the array, it simply points to it, so both variables refer to the same thing. I tried creating an actual copy and then your code passed.This comment is hidden because it contains spoiler information about the solution