title: How to set a value of the textarea without id by javascript?
body: <p>Typically we run javascript code to set any value:</p>
  
  <pre><code>document.getElementById('id_name').value = "...";
  </code></pre>
  
  <p>But I have a page like this:</p>
  
  <pre><code>&lt;div id="id_name"&gt;
      &lt;div class="class_name"&gt;
          &lt;textarea&gt;&lt;/textarea&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>How to set a value of the textarea by javascript?</p>
  
  <p>Thanks a lot for help!</p>