In the software ecosystem, code is possible for anyone. The critical question here is: are your codes clean code? So or not?!
SOLID provides better quality projects developed by taking the principles that ensure the software is flexible, reusable, sustainable, and understandable and prevents code duplication.
In the realm of software development, the pursuit of high-quality projects is paramount. The SOLID principles stand as guiding pillars, ensuring that software is functional, flexible, reusable, sustainable, and easily understandable. By adhering to these principles, developers can prevent code duplication and create robust, maintainable applications that stand the test of time.
Understanding the Purpose of SOLID Principles: To comprehend the significance of SOLID principles, it’s crucial first to acknowledge the detrimental effects of poorly written code. Such code exhibits characteristics like rigidity, fragility, immobility, and increased cost, all of which hinder the evolution and sustainability of software projects. Rigidity manifests when code resists change, fragility arises when changes cause widespread issues, immobility inhibits code reuse, and increased cost impacts both time and resources.
Single Responsibility Principle
Open/Closed Principle
Liskov‘s Substitution Principle
Interface Segregation Principle
Dependency Inversion Principle
We do not want the code we write to be awful. That’s why we started researching SOLID principles, am I right? So keep your mind open for the future.
First of all, let’s talk about what are the purposes of SOLID principles. What bad situations do SOLID principles heal? Therefore, I will talk about how to write awful code.
Criteria for bad code:
Rigidity
Fragility
Immobility
Cost
Rigidity: Codes must be adjustable in a project. If the written codes are resistant to change, this situation is terrible.
Fragility: If the changes we make in our codes cause problems at many points of the project, it shows that the code we have written is fragile. And this is undesirable. Think about how many developers have worked on a project in the past. Each developer had built the project with fragile code; it would have been impossible for the project to be developed until now.
Immobility: Software systems plug-a-d-play. In other words, when we add a code that we code in one project to another project, it should work.
Cost: It increases both the time and cost of the development process.
The presence of one or more of the above criteria in the project shows that the code blocks and even your project are of poor quality.
Fortunately, There are SOLID principles so that our codes are not affected by such situations.
SOLID principles
S — Single Responsibility Principle: Classes(objects) should only have a well-defined responsibility.
O — Open/Closed Principle: Classes should be open to new behaviours while closed to change.
L — Liskov’s Substitution Principle: Sub-class should be used instead of the base class from which they are derived without making any code changes.
I — Interface Segregation Principle: More than one specialized interface should be used instead of a single interface for general-purpose responsibilities.
D — Dependency Inversion Principle: In layered architectures, inter-class dependencies should be as few as possible. That is, higher-level classes should be independent of lower-level classes.
Two different situations arise in the application and non-application of each principle. I will explain each principle in more detail with code examples. Correcting the application’s mistakes will make the directions easier to understand and apply.
Application of SOLID Principles: Each SOLID principle addresses specific software design and development aspects, offering guidelines to avoid common pitfalls. We can illustrate how adhering to these principles can rectify issues and lead to more robust and maintainable codebases through code examples and discussions.
Conclusion
SOLID principles into software development practices foster project quality, maintainability, and scalability. By understanding and applying these principles, developers can mitigate common challenges associated with poorly designed code and build software that meets current requirements and easily adapts to future needs.
Remember: Just as a cluttered desk impedes productivity, cluttered code hinders software evolution. Embrace SOLID principles to organize your codebase effectively and streamline development processes, ensuring the longevity and success of your projects. Let’s continue the discussion in the comments to explore further insights and practical applications of SOLID principles in software development.
Discuss in the comment.