parameters. If a parameter
is nil, <code class="mendoza-code">(default)</code> will redefine it to a default value.
</p>
<h2>Variadic Functions
</h2>
<p>Janet also provides first-class support for variadic functions. Variadic functions can take any number
of parameters, and gather them up into a tuple. To define a variadic function, use the <code class="mendoza-code">&amp;</code> symbol
as the second to last item if the parameter list. Parameters defined before the last variadic argument
are not optional, u