title: jquery html() vs empty().append() performance
body: <p>I have created a test case at <a href="http://jsperf.com/jquery-html-vs-empty-append-test">http://jsperf.com/jquery-html-vs-empty-append-test</a> to compare the performance of <code>$.html()</code> with <code>$.empty().append()</code>. I wondered that <code>.empty().append()</code> is faster.</p>
  
  <p>Can anyone explain this performance gap?</p>
  
  <p>Thanks.</p>