Get first letter of each word in a string, in JavaScript

Question

How would you go around to collect the first letter of each word in a string, as in to receive an abbreviation?

Input: "Java Script Object

Answer 1

Yet another option using reduce function:

var value = "Java Script Object Notation";

var result = value.split(' ').reduce(function(previous, current){
    return {v : previous.v + current[0]};
},{v:""});


$("#output").text(result.v);