ignature">&lt;R&gt;</span></span>
          </span>
        </dt>
        <dd>
          Makes this iterable useful as an <code>Iterable&lt;R&gt;</code>, if necessary. <a href="dart-collection/DoubleLinkedQueue/cast.html">[...]</a>
          
</dd>
        <dt id="clear" class="callable">
          <span class="name"><a href="dart-collection/DoubleLinkedQueue/clear.html">clear</a></span><span class="signature">(<wbr>)
            <span class="returntype parameter">&#8594; void</span>
          </span>
     