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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.
Usually that notation is used to iterate over objects. Most codewars problems are arrays.
Tbh, this was my first answer as well as I couldn't remember any JS functions while timing myself. I am aware that it could be cleaned up a lot. Wouldn't having a working solution be better than no solution at all?
Great readability! So much clearer to understand than the single lines of code above.
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