Clean Code Blog

The Open-Closed Principle is a principle of object-oriented software design that states that a class should be open for extension, but closed for modification. This means that the class should be designed in a way that allows it to be extended or modified to meet new requirements, without requiring changes to the class itself. Here are some key points to consider when implementing the Open-Closed Principle: Design for extensibility : The class should be designed in a way that allows it to be easily extended to meet new requirements, without requiring changes to the class itself. This may involve the use of inheritance, polymorphism, or other design patterns. Avoid making changes to existing code : The class should be "closed" in the sense that it should not require changes to its existing code in order to meet new requirements. This helps to prevent the risk of introducing new bugs or breaking existing functionality when making changes to ...

The Single Responsibility Principle is a guideline for designing object-oriented software in a way that is maintainable and scalable. This principle states that every class should have a single, well-defined responsibility, and that responsibility should be encapsulated within the class. This helps to prevent classes from becoming overly complex and hard to maintain. Here are some key points to consider when applying the Single Responsibility Principle: Identify the single responsibility of a class : When designing a class, it is important to identify its single responsibility, which should be encapsulated within the class. This responsibility should be well-defined and should not be too broad or too narrow. Avoid mixing responsibilities : It is important to avoid mixing multiple responsibilities within a single class, as this can lead to complexity and maintainability issues. Instead, each responsibility should be encapsulated within a separate class...

The SOLID principles  are a set of guidelines for designing object-oriented software in a way that is maintainable, scalable, and flexible. These principles were first described by Robert C. Martin, also known as "Uncle Bob," and have become a widely-adopted set of best practices in software development. The SOLID principles are: SingleResponsibility Principle (SRP) : This principle states that every class should have a single, well-defined responsibility, and that responsibility should be encapsulated within the class. This helps to prevent classes from becoming overly complex and hard to maintain. Open-ClosedPrinciple (OCP) : This principle states that a class should be open for extension, but closed for modification. This means that the class should be designed in a way that allows it to be extended or modified to meet new requirements, without requiring changes to the class itself. Liskov Substitution Principle (LSP) : This principle states that a subclass should be abl...