acronym function in javascript

acronym.js

function firstLetter(word) {
   return word[0];
};

function getAcronym(str){
  var words = str.split(" "); // ["for","your","information"]
  var acr = words.map(firstLetter); // ["f","y","i"]
  return acr.join("").toUpperCase();
};

var str = "for your information";
var acronym = getAcronym(str);
console.log(acronym);

Really helped me out, cheers for this

Thank you, it was really useful.