ould be less efficient.
</p>
<pre class="mendoza-codeblock"><code data-language="janet">(<span class="mdzsyn-coresym">def</span> <span class="mdzsyn-symbol">arr</span> (<span class="mdzsyn-coresym">array/new</span> <span class="mdzsyn-number">4</span>))
<span class="mdzsyn-symbol">arr</span> <span class="mdzsyn-comment"># -&gt; @[]</span>
(<span class="mdzsyn-coresym">put</span> <span class="mdzsyn-symbol">arr</span> <span class="mdzsyn-number">0</span> <span class="mdzsyn-keyword">:one</span>)
(<span class