title: How to convert hover function with on in jquery
body: <p>I have this code</p>
  
  <pre><code>$("td").hover(function(){
                  $(this).find('a.btn').show();
                  }, function(){
                  $(this).find('a.btn').hide();
              })
  </code></pre>
  
  <p>How can i convert this function for new dom elements with <code>on</code></p>