title: How to find a div has a widget in Jquery?
body: <p>How to check if the div has the widget or not ? for eg.</p>
  
  <p>if we add a class to div we can check that using <a href="http://api.jquery.com/hasClass/" rel="nofollow">.hasClass</a> like this, is there is any way to find widget is exists or not?</p>