et="#function-overloading">Function overloading</a></li>
  </ul></li>
  <li><a href="#calling-functions" id="toc-calling-functions" class="nav-link" data-scroll-target="#calling-functions">Calling functions</a>
  <ul class="collapse">
  <li><a href="#functions-as-expressions" id="toc-functions-as-expressions" class="nav-link" data-scroll-target="#functions-as-expressions">Functions as expressions</a></li>
  <li><a href="#functions-as-statements" id="toc-functions-as-statements" class="nav-link" data-scroll-