></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</span></h2>
          <pre class="language-dart"><code class="language-dart">set length(int newLength) {
  throw new Un