Abstract Factory

Creates an instance of several families of classes

• Provide an interface for creating families of related or dependent objects without specifying their concrete classes.

• An Abstract Factory creates objects that are related by a common theme. In object-oriented programming a Factory is an object that creates other objects. An Abstract Factory has abstracted out a theme which is shared by the newly created objects.

Abstract Factory Method

EX:
var fromPrototype = function(prototype, object) {
    var newObject = Object.create(prototype);
    for (var prop in object) {
        if (object.hasOwnProperty(prop)) {
            newObject[prop] = object[prop];
        }
    }
  return newObject;
};

var Ingredients = {
    createDough: function() {
        return 'generic dough';
    },
    createSauce: function() {
        return 'generic sauce';
    },
    createCrust: function() {
        return 'generic crust';
    }
};

Ingredients.createChicagoStyle = function() {
    return fromPrototype(Ingredients, {
        createDough: function() {
            return 'thick, heavy dough';
        },
        createSauce: function() {
            return 'rich marinara';
        },
        createCrust: function() {
            return 'deep-dish';
        }
    });
};

Ingredients.createCaliforniaStyle = function() {
    return fromPrototype(Ingredients, {
        createDough: function() {
            return 'light, fluffy dough';
        },
        createSauce: function() {
            return 'tangy red sauce';
        },
        createCrust: function() {
            return 'thin and crispy';
        }
    });
};
var californiaIngredients = Ingredients.createCaliforniaStyle();
californiaIngredients.createCrust(); // returns 'thin and crispy';