I have to say, I was excited about const and let, but seeing const written 10 times stacked on top of itself makes me wish it was just var. It's too long. If you are going to shorten a word - go all the way.

My beef is that I always liked placing my var declarations up top. Too many vars would often be a hint I should look at refactoring or extracting functionality. And they also served as a quick TLDR; of what I could expect the function to be working with.

Now with const, you can't hoist, so I've potentially got const statements in places I don't want them.