title: jQuery: Get height of hidden element in jQuery
body: <p>I need to get height of an element that is within a div that is hidden. Right now I show the div, get the height, and hide the parent div. This seems a bit silly. Is there a better way?</p>
  
  <p>I'm using jQuery 1.4.2:</p>
  
  <pre><code>$select.show();
  optionHeight = $firstOption.height(); //we can only get height if its visible
  $select.hide();
  </code></pre>