JQuery .size() - Count the divs. Click to add more.

by aaronk85

HTML

<!DOCTYPE html>
<html>
<head>
</head>
<body>
  
<span></span>
 <div></div>
</body>
</html>

CSS

body { cursor:pointer; min-height: 100px; }
  div { width:50px; height:30px; margin:5px; 
        float:left; background:blue; }
  span { color:red; }

JavaScript

$(document.body)
.click(function() { 
  $(this).append( $("<div>") );
  var n = $("div").size();
  $("span").text("There are " + n + " divs. Click to add more.");
})
// trigger the click to start
.click();