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); }