how to return each word from a string javascript code example

Example 1: javascript name capitalization

function capitalizeName(name) {
  return name.replace(/\b(\w)/g, s => s.toUpperCase());
}

Example 2: js get words first letter

var str = "Java Script Object Notation";
var matches = str.match(/\b(\w)/g); // ['J','S','O','N']
var acronym = matches.join(''); // JSON

console.log(acronym)