t values for
parameters. If a parameter is <code class="mendoza-code">nil</code>, <code class="mendoza-code">default</code> will redefine it to a
default value.
</p>
<h2 id="Variadic-functions">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
of the parameter list. Par