This isn't true at all, promises in JavaScript are monadic, as are chains of conditional logic. Stuff like this is literally everywhere: if a: b = f(a)

This isn't true at all, promises in JavaScript are monadic, as are chains of conditional logic. Stuff like this is literally everywhere: if a: b = f(a) if b: c = g(b) ... else: p() Which as a monad would be something like A >>= f >>= g >>= h >>= ... I've built several classes with a covert "return" and "bind" operation to keep this kind of programming clean, I just don't tell anyone it's a monad.