-core/StateError-class.html">StateError</a> if <code>this</code> is empty.
Otherwise returns the first element in the iteration order,
equivalent to <code>this.elementAt(0)</code>.</p>
</section>
<section class="summary source-code" id="source">
  <h2><span>Implementation</span> </h2>
  <pre class="language-dart"><code class="language-dart">E get first {
  if (length == 0) throw IterableElementError.noElement();
  return this[0];
}</code></pre>
</section>
</section>
        
        <section id="setter">
  