What is the factory pattern and how is it implemented in different programming languages?

Can you explain the factory pattern and its purpose?

The factory pattern is a creational design pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.

How is the factory pattern implemented in Python?

In Python, you can implement the factory pattern using functions or classes. For example, you can create a function that returns different class instances based on input parameters.

What about in Java? How does it differ?

In Java, the factory pattern is often implemented using interfaces and abstract classes. You define a factory interface with a method for creating objects, and concrete classes implement this interface to create specific objects.

Can you give me an example in JavaScript?

Sure! In JavaScript, you can use factory functions to create objects. For instance, a function can return an object with specific properties and methods based on the input.