I can understand that line of thinking, but in given the OP is talking in JS, and and that I've only ever written such languages at Uni or for practice, I don't

I can understand that line of thinking, but in given the OP is talking in JS, and and that I've only ever written such languages at Uni or for practice, I don't find them applicable to my day to day. I deal with Java, Scala, JS, and a few other C-style languages. These are how I think and work, these are, and I'm going to assume (make an ass of you and me ;)) that these are what the majority of HNers deal in.