I am reliably informed by many people that the core essense of functional programming is the extensive use of map, filter, and reduce, that these functions are superior to for loops in every way, to a degree that they should be jammed in to every possible language with no need to analyze the cost/benefits of such an approach because the benefits are just so incomparably amazing that the costs couldn’t possibly be relevant, and even wondering about the costs just proves I Don’t Get It.
