parameter" id="length=-param-newLength"><span class="type-annotation"><a href="../../dart-core/int-class.html">int</a></span> <span class="parameter-name">newLength</span></span><wbr>)</span>
                  <div class="features">inherited</div>
</section>
        
                <section class="desc markdown">
          <p>This operation is not supported by an unmodifiable list.</p>
        </section>
                <section class="summary source-code" id="source">
          <h2><span>Implementation</s