rr</span> <span class="mdzsyn-number">100</span>) <span class="mdzsyn-comment"># -&gt; nil</span>
(<span class="mdzsyn-coresym">get</span> <span class="mdzsyn-symbol">arr</span> <span class="mdzsyn-number">100</span> <span class="mdzsyn-keyword">:default</span>) <span class="mdzsyn-comment"># -&gt; :default</span></code></pre><p>Instead of <code class="mendoza-code">in</code> you can also use the array as a function with the index as
an argument or call the index as a function with the array as the first
ar