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Software entities (classes, modules, functions) should be .

In the video, this is demonstrated by refactoring a Laravel controller's "store" method. By moving validation to a custom Form Request and database logic to a Repository, the controller’s code was reduced from ten lines to two.

This video provides an overview of the , a set of guidelines used in software development to create code that is easier to maintain, extend, and understand. Key Takeaways from the Video 0gzapetk60ou7eehzsux8_source.mp4

A class or module should have .

The SOLID acronym represents five core principles designed to reduce technical debt and improve software architecture: Software entities (classes, modules, functions) should be

Objects of a superclass should be replaceable with objects of its subclasses without breaking the application.

This means you should be able to add new functionality by writing new code rather than altering existing, stable code that is already tested and working. This video provides an overview of the ,

Clients should not be forced to depend on methods they do not use. It’s better to have many small, specific interfaces than one large, general-purpose one.