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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 "calling toRandomArray() and then try to get each value of the random array calling 100 times as much " case should add "checked = false" above the "while..."