JYpLEY

script.js

const Maybe = val => ({
  val,
  fmap(f) {
    if(this.val === null || this.val === undefined) return Maybe(null);
    return Maybe(f(this.val));
  }
});

const getFirstName = maybeName => maybeName.fmap(name => name.split(" ")[1]);
const getFirstLetter = maybeString => maybeString.fmap(string => string[0]);

const firstInitial = R.pipe(getFirstName, getFirstLetter);

// let's try this out 
const user = Maybe("Bully Biff Tannen");
const initial = firstInitial(user);
document.write(initial.val, "<br />");   // "B"

const noUser = Maybe(null);
const noInitial = firstInitial(noUser);
document.write(noInitial.val);           // null

scripts

<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.18.0/ramda.min.js"></script>