title: What is the fastest way to get a dom element?
body: <p>I'm performance-tuning my code, and am surprised to find that the bottleneck is not dom node insert, but selection.</p>
  
  <p>This is fast: </p>
  
  <pre><code>var row = jquery(rowHTML).appendTo(oThis.parentTable);
  </code></pre>
  
  <p>but the subsequent getting of an element inside "row" is slow:</p>
  
  <pre><code>var checkbox = jquery(".checkbox input", row);
  </code></pre>
  
  <p>I need to get the checkbox in every row so I can attach an event handler to it. Selecting the checkbox is ALMOST 10X AS SLOW as inserting the entire parent row. </p>
  
  <p>What am I doing wrong here?</p>