_layout/Plugin-class.html">Plugin</a></span>
                  </span>
              </dt>
              <dd>
                  Returns the <code class="prettyprint lang-dart">index</code>th element.
              </dd>
              <dt id="every" class="callable">
                  <span class="name ">every</span><span class="signature">(<wbr><span class="parameter" id="every-param-test"><span class="type-annotation">bool</span> <span class="parameter-name">test</span>(<span class="parameter" id="test-par