Test case details

Preparation Code

<div id="box">   <div>     <div>       <div>         <div>           <p>Hello</p>           <p>World!</p>         </div>       </div>     </div>   </div> </div> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> <script>   var $box = $('#box'); </script>

Test cases

Test #1

$('#box p');

Test #2

$('#box').children('p');

Test #3

$('#box').find('p');

Test #4

$('p', $box);

Test #5

$box.find('p');