title: How can I get a div's children id using Jquery?
body: <p>I have code like</p>
  
  <pre><code> var i = $(this).children().eq(0).attr('id');
  </code></pre>
  
  <p>I want to know that, had I already stored the id of that children div in variable called i.
  Or I have to write some other codes? If I have to write some other codes what it might be? As I am new to jQuery it will be very helpful if I get any suggestion.  </p>