↝ This principle states that a class should depend on abstractions, not on concretions. Once again, what do we mean by that definition? There are numerous concepts that we need to discuss, such as: What do we mean by dependency? Injection? Abstractio...
↝ This principle states that you have to make fine-grained interfaces that are client-specific. Again, what do we mean by that? Let's break it down. There are two main ideas in its name: Interface and segregation. What is an interface? What do we mea...
↝ Robert C. Martin, also known as Uncle Bob, introduced the SOLID principles. These principles help you design your classes in a way that they can gracefully accommodate change. As we know, maintaining and modifying code could be challenging, but wit...
Terminologies: base class means parent class subclass / derived class means child class ↝ This principle means that derived classes must be substitutable for their base classes. What do we mean by that? It means that a subclass should be able to ...
↝ It is said that our code should be open for extension but closed for modification. What does this mean? Well, at some point, you may want to extend the functionality of a class, but modification is restricted to ensure bug-free code—thus, it must r...
↝ It states that a class should have one, and only one, reason to change. What do you mean by reason to change? When a class has more responsibilities, there's a chance it might have to change its behavior later on. That's why we aim to minimize the ...