title: Hashtag in classname causing issue
body: <p>I am working on a site where i can not edit the HTML.</p>
  <p>They have a class with a &quot;#&quot; in it , very odd but its there.</p>
  <p>Any idea on how to get this to work ?</p>
  <pre><code>var columnString = '';
  
  columnString += &quot;$('td[class=&quot;#w&quot;]').addClass('newClass');&quot;;
  </code></pre>