') !== -1;
}</pre>
      </td>
    </tr>

    <tr>
      <td>dataAttributes</td>
      <td>string[] or 'all'</string></td>
      <td><code>false</code></td>
      <td>An array of fields optionally defined on the timeline items that will be appended as <code>data-</code> attributes to the DOM element of the items.<br>
        If value is <code>'all'</code> then each field defined on the timeline item will become a <code>data-</code> attribute.</td>
    </tr>

    <tr class='toggle collapsible' onclick="toggl