</h3>
<p>Appends a value to the end of the array and returns the array.
</p>
<h3><code class="mendoza-code">(array/pop stack)</code>
</h3>
<p>Removes the last value from stack and returns it. If the array is empty,
returns <code class="mendoza-code">nil</code>.
</p>
<h3><code class="mendoza-code">(array/peek stack)</code>
</h3>
<p>Returns the last element in stack but does not remove it. Returns <code class="mendoza-code">nil</code> if
the stack is empty.
</p>
<h2 id="More-array-functions">More array functi