Factory Design Pattern in node.js

 class Product {

constructor(name, price) {

this.name = name;

this.price = price;

}

getInfo() {

return `Product: ${this.name}, Price: ${this.price}`;

}

}

class ConcreteProductA extends Product {

constructor(name, price) {

super(name, price);

}

}

class ConcreteProductB extends Product {

constructor(name, price) {

super(name, price);

}

}

class ProductFactory {

createProduct(type, name, price) {

switch (type) {

case 'A':

return new ConcreteProductA(name, price);

case 'B':

return new ConcreteProductB(name, price);

default:

throw new Error('Invalid product type');

}

}

}

const factory = new ProductFactory();

const productA = factory.createProduct('A', 'Product A', 100);

const productB = factory.createProduct('B', 'Product B', 200);

console.log(productA.getInfo()); // Output: Product: Product A, Price: 100

console.log(productB.getInfo()); // Output: Product: Product B, Price: 200