lues contained in a data structure but will throw errors on bad keys
to arrays, tuple, and string-likes. You should prefer <code class="mendoza-code">in</code> going forward as
it can be used to better detect errors. For tables and structs, <code class="mendoza-code">in</code>
behaves identically to <code class="mendoza-code">get</code>.
</p>
<pre class="mendoza-codeblock"><code data-language="janet">(<span class="mdzsyn-coresym">in</span> @[<span class="mdzsyn-keyword">:a</span> <span class="mdzsyn-keyword