Factor pattern js pattern

factory-design-pattern.js

import Motorvehicle from './Motorvehicle';
import Aircraft from './Aircraf';
import Railvehicle from './Railvehicle';

const VehicleFactory = (type, make, model, year) => {
  if (type === car) {
    return new Motorvehicle('car', make, model, year);
  } else if (type === airplane) {
    return new Aircraft('airplane', make, model, year);
  } else if (type === helicopter) {
    return new Aircraft('helicopter', make, model, year);
  } else {
    return new Railvehicle('train', make, model, year);
  }
}

module.exports = VehicleFactory;

const audiAllRoad = VehicleFactory('car', 'Audi', 'A6 Allroad', '2020');