Edit in JSFiddle

<button>Iterate Js Array</button>
<div></div>

  $("button").click(function(){
  var myJsArray = [10,20,30,40,50];
  jQuery.each(myJsArray, function(index, value)
{
$("div").append('element at index ' + index + ' is ' + value + "<br>");
});
});