"Of course those random strangers will not know several languages of different paradigms, and will not be programming themselves, in opposite of what you are do

"Of course those random strangers will not know several languages of different paradigms, and will not be programming themselves, in opposite of what you are doing." You know that this doesn't make JavaScript be a functional language, right? It still only has some parts from functional paradigm, and those are not well-fitted, so fully functional programming in JS is awkward.