Edit in JSFiddle

var s = new String("pippo");
var p = "pippo";

console.log(typeof s);
console.log(typeof p);

console.log(p == s);
console.log(p === s);

console.log(p.substr(0, 1));
console.log(s.substr(0, 1));

var b = new Boolean(false);
if (b) {
  console.log("is b true??? WTF!");
	console.log(b);
}