Myself as a JavaScript Class

NickCrohn.js

var NickCrohn = function(world) {

  var firstName  = 'Nicholas',
      middleName = 'William',
      lastName   = 'Crohn',

      favoriteFood = {
        name: 'Lasagna',
        isFood: true,
        isDrink: false
      },

      favoriteDrink = {
        name: 'Coffee',
        isFood: false,
        isDrink: true
      },

      favoriteAlcoholicDrink = {
        name: 'Beer',
        isFood: false,
        isDrink: true
      };

  function speak(words) {
    console.log('%s says, "%s"', firstName, words);
  }

  function consume(consumable) {
    if(consumable.isDrink) {
      //openMouth();
      //swallow();
      speak('Ahhhhh, ' + consumable.name);
    } else if(consumable.isFood) {
      //openMouth();
      //chew();
      //swallow();
      speak('Omnomnom, ' + consumable.name);
    }
  }

  return {
    
    getFullName: function() {
      var fullName = [firstName, middleName, lastName];
      return fullName.join(' ');
    },

    eat: function(food) {
      if(!food) {
        food = favoriteFood;
      }

      consume(food);
    },

    drink: function(drink) {
      if(!drink) {
        drink = favoriteDrink;

        var date = new Date();
        if(date.getHours() > 12) {
          drink = favoriteAlcoholicDrink;
        }

      }

      consume(drink);
    }

  };

};