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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.
Javascript
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
@ZED, thanks for the suggestion, and I added in a line about the performance required. Also, I've added in extra code to try and weed out loopholes so your solution no longer works.
Is it still considered a duplicate if the other two requires refactoring the original function but this one does not?