A Few Things I Wish I'd Known Earlier About SOLID

Things That Make More Sense in Practice

Single Responsibility says a class should have only one reason to change. Dependency Inversion recommends high-level classes depend on abstractions (interfaces), not on implementation details.

Why They Matter

SOLID stands for five object-oriented design principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. Tutorials often gloss over points like these, but they make a real difference on an actual project.