GoF is all about "Elements of Reusable Object-Oriented Software": and separation of concerns is at the heart of it: https://www.geeksforgeeks.org/gang-of-four-g

GoF is all about "Elements of Reusable Object-Oriented Software": and separation of concerns is at the heart of it: https://www.geeksforgeeks.org/gang-of-four-gof-design-patterns/ https://www.geeksforgeeks.org/gang-of-four-gof-design-patter...