Employee Objects - modified code originally found at: http://www.dofactory.com/javascript/factory-method-design-pattern

JS Factory Method Example

var subclasses = {
  Employee: function(name, role) {
    this.name = name;
    this.sayHi = function() {
      console.log(this.name + ": I work " + this.weeklyHours + "hrs/week");
    };
    if(role === "manager" || role === "salesman") return subclasses.Fulltime(name, role);
    else if(role === "temporary" || role === "traveling") return subclasses.Parttime(name, role);
  },
  Fulltime: function(name, role) {
    subclasses.Employee.call(this, name);
    this.weeklyHours = 40;
    if(role === "manager") return new subclasses.Manager(name);
    else if(role === "salesman") return new subclasses.Salesman(name);
  },
  Parttime: function(name, role) {
    subclasses.Employee.call(this, name);
    this.weeklyHours = 20;
    if(role === "temporary") return new subclasses.Temporary(name);
  },
  Manager: function(name) {
    subclasses.Fulltime.call(this, name);
    this.hourly = 25;
  },
  Salesman: function(name) {
    subclasses.Fulltime.call(this, name);
    this.hourly = 20;
  },
  Temporary: function(name) {
    subclasses.Parttime.call(this, name);
    this.hourly = 14;
  }
};

var employeeFactoryMethod = function(name, role) {
  var Employee = subclasses.Employee;
  return Employee(name, role);
};

var generateOfficeCast = function() {
  var cast = [];
  cast.push(employeeFactoryMethod('Michael', 'manager'));
  cast.push(employeeFactoryMethod('Jim', 'salesman'));
  cast.push(employeeFactoryMethod('Ryan', 'temporary'));
  return cast;
};

var officeCast = generateOfficeCast();
officeCast.forEach(actor => actor.sayHi());
officeCast[0]; // michael object

// from (http://www.dofactory.com/javascript/factory-method-design-pattern)