app_layout/MutationObserver/disconnect.html">disconnect</a>
</li>
      <li><a href="polymer_app_layout/MutationObserver/observe.html">observe</a>
</li>
      <li><a href="polymer_app_layout/MutationObserver/takeRecords.html">takeRecords</a>
</li>
    </ol>

  </div><!--/.sidebar-offcanvas-->

  <div class="col-xs-12 col-sm-9 col-md-6 main-content">

    <section class="multi-line-signature">
            <span class="returntype">void</span>
            <span class="name ">observe</span>(
            <br>
  