batTotal function
Totals sums of 3 functions, WHICH RETURN num value. (simple)
Implementation
// you can not call this with values : print(batTotal(3,4,5));
num batTotal(var batman, var robin, var joker) {
// num total = 0; // Future plans..?
// num batReturn = batman();
// num robinReturn = robin();
// num jokerReturn = joker();
// total = (total + batReturn + robinReturn + jokerReturn);
return (batman() + robin() + joker());
}