title: How to count the number of child elements within an element?
body: <p><strong>HTML</strong></p>
  
  <pre><code>&lt;div class="fieldset_div"&gt;
  
  &lt;textarea name="subContext_1" class="textcountx" id="textarea__1_1"&gt;
    &lt;/textarea&gt;
  &lt;/div&gt;
  </code></pre>
  
  <ul>
  <li>I need to count the number of classes inside a class. </li>
  <li>I need to find the number of textareas inside the 'fieldset_div'.</li>
  </ul>
  
  <p>Please help.</p>