
(<span class="mdzsyn-number">0</span> <span class="mdzsyn-symbol">arr</span>) <span class="mdzsyn-comment"># -&gt; :a</span></code></pre><p>Note that a non-integer key will throw an error when using <code class="mendoza-code">in</code>.
</p>
<h2 id="Setting-values">Setting values
</h2>
<p>To set values in an array, use either the <code class="mendoza-code">put</code> function or the <code class="mendoza-code">set</code>
special.  The <code class="mendoza-code">put</code> function is a function that allows 