title: How to give two css class name together ,second one is removed after page is rendered?
body: <pre><code>var cssClass ;
  cssClass = "fa-leaf green-icon";
  var textValue = '&lt;span  class=' + cssClass + '&gt;' + nodeName + '&lt;/span&gt;';
  </code></pre>
  
  <p>later I've used this text value to in column header in grid panel in Extjs 6.</p>
  
  <p>When page is played green-icon class is removed  from class, it becomes like this </p>
  
  <p><code>&lt;span class="fa-leaf" green-icon&gt;name&lt;/span&gt;, but it should have been like</code> this:</p>
  
  <pre><code> &lt;span class="fa-leaf green-icon"&gt;name&lt;/span&gt;
  </code></pre>