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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.
You can't compare characters as is, without getting their numerical weights. that's why mapping.
Or did you mean nesting mapping into .reduce as done in solution below?
Unnecessary mapping function doubling the complexity of the solution.
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