Javascript String shout()

function FizzBuzz(){
 var i,//  w  w w.jav  a  2s.c  o m
  output;

 for (i = 1; i < 100; i++){
  output = i;

  
  if(i % 3 == 0 && i % 5 == 0){
   output = "FizzBuzz"
  }else if(i % 3 == 0){
   output = "Fizz"
  }else if(i % 5 == 0){
   output = "Buzz"
  }else{
   output = i;
  }

 debug(output);
 }
}

function shout(input){
 debug(input.toUpperCase() + "!");
}

String.prototype.shout = function() {
 return (this.toUpperCase() + "!");
};

function Vehicle(wheels, colour){
 this.wheels = wheels;
 this.colour = colour;
}

Vehicle.prototype.getWheels = function(){
  return this.wheels;
}

Vehicle.prototype.getColour = function(){
  return this.colour;
}

function Bike(colour){
 this.wheels = 2;
 this.colour = colour;
}

Bike.prototype.getWheels = function(){
 return this.wheels;
}

Bike.prototype.getColour = function(){
 return this.colour;
}