Sandwich Maker example

main.js

console.log(Sandwich);

var sandwichCost = Sandwich.getSandwichPrice("cheese");
var toppingCost = Sandwich.getToppingPrice("captainCrunch");
var output = document.getElementById("sandwich");

output.innerHTML = sandwichCost + toppingCost;

sandwich.js

var Sandwich = (function() {
  var prices = {"pb&j": 2.00, "cheese": .75};

  return {
    getSandwichPrice: function(sandwich) {
      return prices[sandwich];
    }
  };

})();

topping.js

var Sandwich = (function(origSand) {
  var toppingPrices = {"whippedCream": .50, "captainCrunch": .10};

  origSand.getToppingPrice = function(topping) {
    return toppingPrices[topping];
  }

  return origSand;

})(Sandwich);