That's definitely pathological, but not from a "small function" point of view. xor_it is simple unnecessary to write and xor_them is just a fold on xor_it. This

That's definitely pathological, but not from a "small function" point of view. xor_it is simple unnecessary to write and xor_them is just a fold on xor_it. This is undue multiplication of names. _ = require 'underscore' xor_them = (them) -> _.reduce(them, (a,b) -> a^b) Or better import Data.Bits (xor) xor_them :: Bits a => [a] -> a xor_them = foldl1 xor