What are decorator patterns in programming?

What are decorator patterns in programming?

Decorator patterns are a structural design pattern that allows behavior to be added to individual objects, either statically or dynamically, without affecting the behavior of other objects from the same class.

Can you give me an example of how to implement a decorator pattern?

Sure! In Python, you can use decorators to modify the behavior of a function. For example:

def decorator_function(original_function):
    def wrapper_function():
        print('Wrapper executed before {}'.format(original_function.__name__))
        return original_function()
    return wrapper_function

@decorator_function
def display():
    print('Display function executed')

display()

What are the benefits of using decorator patterns?

The benefits include enhanced code reusability, separation of concerns, and the ability to add functionality to existing code without modifying it.

Are there any drawbacks to using decorator patterns?

Yes, potential drawbacks include increased complexity and difficulty in debugging, as well as the possibility of creating a large number of small classes.