Software Design Patterns

 Software Design Patterns

Software design patterns are reusable solutions to common software engineering problems. There are many design patterns, including the Singleton pattern, the Factory pattern, and the Observer pattern. You'll need to know how to recognize and implement these patterns in your code. Here's an example of the Singleton pattern in Python:

class Singleton:

    _instance = None

    def __new__(cls):

        if cls._instance is None:

            cls._instance = super().__new__(cls)

        return cls._instance