title: $.each Doesn't work for object array in jquery
body: <p>i have a array and i need to use each of this items , but forEach and $.each dont work for array here a exmple ( <a href="http://jsfiddle.net/pnsadeghy/4HJ4B/" rel="nofollow">jsfiddle</a> )</p>
  
  <pre><code>var person = new Array();
  person["firstName"] = "John";
  person["lastName"] = "Doe";
  person["age"] = 46;
  jQuery.each(person, function(index, item) {
      alert(index + " : " + item);
  });
  </code></pre>