Milestone 4: Go Interfaces & Composition

🟥 Milestone 4: Go Interfaces & Composition

In Go, we don’t have “Parent” and “Child” classes. We build systems by Composition (Lego blocks) and Interfaces (Contracts).

📚 Slow-Paced Deep Dives (University Modules)

• Module 1: Interfaces (The Silent Contract): GO-112. Why Go doesn’t need “implements” keywords.
• Module 2: Composition (The Lego Blocks): GO-113. Building complex objects from small ones.

🥅 Milestone Goals

1. Understand Structural Typing (if it walks like a duck, it is a duck).
2. Create flexible code that works with any type that satisfies an interface.
3. Use Struct Embedding to reuse code without inheritance.
4. Master the io.Reader and io.Writer interfaces.