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Design Patterns
Published date: 07/08/2023

What is a design pattern?

As master developers, they have to apply the design pattern to their code. OOP programming languages usually use design patterns because they provide better solutions to commonly occurring problems in software design.

The design pattern does not be a specific programming language. Almost programming languages might apply design patterns that to resolve a problem repeat.


Why should use design patterns?

Using the design pattern has some benefits:

  • Easy to re-use code and expand.
  • Resolving an issue effectively that is verified in software engineering.
  • Developing a software product quickly with a test model, a development model that is verified.
  • Avoiding large risks, upgrading, and maintaining is easier.
  • Code is consistent which makes the teammate could understand and discuss easily.


Classification of design patterns

The number of design patterns is 23 patterns and divided into 3 groups (Creational Pattern, Structural Pattern, Behavioral Pattern).


  • Creational Pattern is including 5 patterns: Factory Method, Abstract Factory, Builder, Prototype, and Singleton.


  • Structural Pattern contains 7 patterns: Adapter, Bridge, Composite, Decorator, Facade, Flyweight, and Proxy.

  • Behavioral Pattern has 11 patterns: Interpreter, Template Method, Chain of Responsibility, Command, Integrator, Mediator, Memento, Observer, State, Strategy, and Visitor.


Thank you for reading! I hope this article helps you can better understand design pattern overview. In the next article, I will go into each design pattern.


Documents:

https://refactoring.guru/

https://gpcoder.com/4164-gioi-thieu-design-patterns/

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