Decorator vs Proxy vs Adapter - Software Design Patterns
Decorator vs Proxy vs Adapter - part of Software Design Patterns.
Gang-of-Four design patterns in TypeScript - intent, structure, and when to use them.
In this lesson:
Adapter bridges incompatible interfaces so a client can work with a class it was not designed for
Decorator wraps an object to add responsibilities at runtime while keeping the same interface
Proxy wraps an object to control access — caching, guards, lazy loading — keeping the same interface
All three look alike structurally; intent is the only reliable way to tell them apart
Chapters:
0:00 Intro
0:18 Why these three patterns feel the same
0:43 Analogy
1:12 One sentence of intent for each pattern
1:42 All three patterns side by side in TypeScript
2:24 How the three patterns actually differ
3:04 Pick the pattern that matches your intent
3:39 Recap
Module: Pattern Comparisons
Every command and code example in this video is executed and verified before publishing.