title: Counting checked checkboxes
body: <p>I'm having a problem counting checked checkboxes in jQuery that runs counter to every example I could find. The following code works:</p>
  
  <pre><code>var checked_boxes = $('input:checkbox:checked').length // Returns 1 or 2 etc.
  </code></pre>
  
  <p>However, I would like to modify that to count the number of checkboxes of a particular class, say <code>my_class</code>. I have tried the following:</p>
  
  <pre><code>var checked_boxes = $('input.my_class:checked').length // Always 0
  var checked_boxes = $('input.my_class:checkbox:checked').length // Always 0
  var checked_boxes = $('input[type=checkbox].my_class:checked').length // 0 also
  </code></pre>
  
  <p>Same with several other syntaxes/permutations I tried.</p>
  
  <p>For some background, these checkboxes are in a table in a td and essentially look like so:</p>
  
  <pre><code>&lt;input type="checkbox" id="cb1" class="some_class_for_display_style my_class" value="1" /&gt;Blah
  </code></pre>
  
  <p>Any idea what I'm missing here?</p>
  
  <p>EDIT:</p>
  
  <p>Found the problem: It was the mis-placed class. I added an answer to that effect.</p>