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Lessons (10)

• D — Dependency Inversion Principle

  … Dependency Injection DIP is the principle; Dependency Injection (DI) is the most common technique to achieve it: pass …

• O — Open/Closed Principle

  Software should be open for extension but closed for modification. Add new features by plugging in new code …

• S — Single Responsibility Principle

  A class or module should have only one reason to change. Learn to find the hidden responsibilities in …

• I — Interface Segregation Principle

  Don't force code to depend on methods it doesn't use. Split fat interfaces into small, focused …

• L — Liskov Substitution Principle

  … Prefer composition or separate types. - LSP is what makes polymorphism (and the Open/Closed Principle ) safe.

• SOLID at a Glance

  Five design principles that keep object-oriented and modular code easy to extend, test and change. One picture …

• Code Smells & Refactoring

  … through every switch . (This is the Open/Closed Principle , covered in the SOLID lessons.) Shotgun surgery vs Divergent …

• Microkernel (Plugin) Architecture

  … final HTML The Open/Closed Principle at architecture scale: the core is closed for modification, open for extension …

• Serverless Architecture

  … with near-zero cold starts. Designing for serverless Principle Why --- --- Stateless functions Any instance can handle any request …

• Onion Architecture & Clean vs Hexagonal vs Onion

  … Palermo's own summary of the principles: 1. The application is built around an independent object model . 2 …