class="mendoza-code">in</code> function for arrays, tuples,
and string-likes will throw errors on bad keys --- so to better detect errors,
prefer <code class="mendoza-code">in</code> for these.
</p>
<pre class="mendoza-codeblock"><code data-language="janet">(<span class="mdzsyn-coresym">get</span> @[<span class="mdzsyn-keyword">:a</span> <span class="mdzsyn-keyword">:b</span> <span class="mdzsyn-keyword">:c</span>] <span class="mdzsyn-number">3</span>) <span class="mdzsyn-comment"># -&gt; nil</span>
(<span 