Hi! The Factory Method pattern is a design pattern that is used to create objects without specifying the exact class of object that will be created. It is often used when the type of object to be created is determined at runtime, or when there is a need to create objects of different types based on the specific requirements of the application. In TypeScript, the Factory Method pattern can be implemented using a function that takes a set of parameters and returns an object of a specific type. The function uses the parameters to determine the type of object to create, and then creates and returns the object. factory factory Here is an example of a function in TypeScript: factory function createProduct(type: string): Product { switch (type) { case 'book': return new Book(); case 'software': return new Software(); default: throw new Error('Invalid product type'); } } This function takes a parameter that specifies the type of product to create. It then uses a statement to determine the type of object to create based on the parameter. If the parameter is , the function creates and returns a object. If the parameter is , the function creates and returns a object. Otherwise, it throws an error. factory type switch type type book factory Book type software factory Software To use the function, other classes can call it with the appropriate parameter to create an object of the desired type. factory type Here is an example of how to use the function: factory const product = createProduct('book'); In this example, the function is called with the parameter set to , which causes the function to create and return a object. createProduct type book factory Book The Factory Method pattern is a useful design pattern for creating objects without specifying their exact class. In TypeScript, it can be implemented using a function that takes parameters and returns an object of the appropriate type. This allows other classes to create objects of different types based on the specific requirements of the application. factory