GoF Factory Pattern

Factory.js

// Products

// Abstract Product Class
class Vehicle {
  getPrice() {
    return `What type of vehicle do you want to get the price for?`;
  }
}

// Subclass A
class Car extends Vehicle {
  getPrice() {
    return `This car costs $2000`;
  }
}

// Subclass B
class Truck extends Vehicle {
  getPrice(url) {
    return `This truck costs $5000`;
  }
}

// Creators
// This is the class that would be using the Product
class VehicleFactory {
  // Factory method
  createVehicle(type) {
    switch(type) {
      case "car":
        return new Car()
      case "truck":
        return new Truck()
    }
  }
}

const vehicleFactory = new VehicleFactory();

const car = vehicleFactory.createVehicle('car');
console.log(car.getPrice()); // This car costs $2000

const truck = vehicleFactory.createVehicle('truck');
console.log(truck.getPrice()); // This truck costs $5000

Class Truck's getPrice method I think has a mistake, the url parameter.