Propriété : Object.constructor

<script type="text/javascript">
  var c = new String("Bonjour");
  document.write("c.constructor = "+c.constructor.name+"<br>");
  var d = new Date();
  document.write("d.constructor = "+d.constructor.name+"<br>");

  function Processeur(nom, vitesse)
  {
     this.nom = nom;
     this.vitesse = vitesse;
  }
  var p= new Processeur("i7", "4 GHz");
  document.write("p.constructor = "+p.constructor.name+"<br>");
</script>