However as mentioned elsewhere ( https://news.ycombinator.com/item?id=7500280 ) if most of what you do to organise your code involves passing functions to functions and very little of it involves creating class hierarchies or prototype chains, it's a fair assessment that the language that you are using is more functional than OO.

The language that you are using may be a subset of the whole language, but with JavaScript that's given - you have to find the good parts or go mad trying. I was wrong about JavaScript as a whole, but maybe less so about JavaScript as it is successfully used.