Design Pattern is a general reusable solution to a common problem in software design.
Blue print that you can follow to solve a particular design issue in the code.
It is not specific to any programming language and can be applied in various contexts.
Why?
- Reusability: Design patterns provide solutions that can be reused in different parts of your application or in different projects.
- Efficiency: They help you solve problems more quickly by providing a tried-and-tested approach.
- Maintainability: Code that follows design patterns is often easier to understand, maintain, and extend.
- Communication: They provide a common vocabulary for developers, making it easier to discuss and share design ideas.
How?
- Identify the problem
- Choose the right pattern
- Implement the pattern
Types
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