you time yourself????

Sometimes you just make it work and then think of chaning the style :)

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.