title: How to use single & multiple comment line in twig
body: <p>I'm new in twig project. I need to comment some code like // or /**/. how to use comment in twig?</p>
  <pre><code>    {%if role=3 %}
  &lt;div class=&quot;col-md-6&quot;&gt;
          &lt;div class=&quot;form-group&quot;&gt;
             &lt;label class=&quot;control-label&quot;&gt;&amp;nbsp;&lt;/label&gt;
             &lt;select multiple class=&quot;form-control&quot;  id=&quot;path_attachment&quot; name=&quot;path_attachment[]&quot;&gt;&lt;/select&gt;
          &lt;/div&gt;
  &lt;/div&gt;
  {% else %}
  &lt;div class=&quot;col-md-6&quot;&gt;&lt;/div&gt;
  {% endif %}
  </code></pre>