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Clean Code

2025


Decorators design pattern

·5 mins
In software development, we often need to add extra behavior to existing functions without changing their original code. Common examples include logging, authentication, validation, caching, and performance tracking. A beginner solution is usually copying the same logic into multiple functions. While this works at first, it quickly creates repeated code, cluttered functions, and maintenance problems. This is where the Decorator Pattern becomes useful. What is the Decorator Pattern? #The Decorator Pattern is a structural design pattern that allows developers to dynamically add new behavior to existing objects or functions without modifying their original implementation.