  </span>
        </dt>
        <dd>
          Removes and returns the first element of this queue. <a href="dart-collection/DoubleLinkedQueue/removeFirst.html">[...]</a>
          
</dd>
        <dt id="removeLast" class="callable">
          <span class="name"><a href="dart-collection/DoubleLinkedQueue/removeLast.html">removeLast</a></span><span class="signature">(<wbr>)
            <span class="returntype parameter">&#8594; E</span>
          </span>
        </dt>
        <dd>
          Removes and retur