/* Nested function, in Jsish */
function makeList(separator) {
  var counter = 1;

  function makeItem(item) {
    return counter++ + separator + item + "\n";
  }

  return makeItem("first") + makeItem("second") + makeItem("third");
}

;makeList('. ');

/*
=!EXPECTSTART!=
makeList('. ') ==> 1. first
2. second
3. third

=!EXPECTEND!=
*/