Quiz on Variables and Arrays

var message = function(){ }
var diceRoll = function(){
  return 4;
}
var message = function(){
  return "Hello there!";
}
var message = function(name){
  return "Hello " + name;
}
var sum = function(num){
  return num + 10;
}
var calculateTip = function(bill){
  return bill * 1.2;
}
var sum = function(num1, num2){
  return num1 + num2;
}
var message = function(name, location){
  return "Hello " + name + " from " + location;
}
var calculateTip = function(bill, tip){
  return bill * tip;
}
message();
greeting("John Doe");
sum(5, 10);
hello("John", "Berkeley");