Alternative way of getting the Number of Controls Count using jQuery.

jQuery also has Size method through which we can find the number of controls too.
Suppose,we have following HTML structure as shown below:-

<div id = div_1" class = "class1">
  <div id = div_2" class = "class2">container 1</div>
  <div id = div_3" class = "class2">container 2</div>
</div>

$('.class1').size();  
Output:- 1
$('.class2').size();
Output:- 2