title: Simple Jquery True and false issue
body: <p>what's different between the codes below...</p>
  
  <pre><code>loop here{
  
     .....
     .....
  
     if($element.length == 0){
  
            return true;
    }
     ....
     ..... 
  }
  
  
  ---------------------------------------------
  
  loop here{
  
   ....
   ....
  if($element.length == 0){
  
  
            return false;
    } 
   ....
   ....
  
  }   
  </code></pre>
  
  <p>not sure what's different between return ture and return false inside a loop. Thanks a lot! </p>