Which are the most useful design patterns on web development?

Question

Hi I am a beginner software developer, and this question has been around of my head for a while. I've seen a lot of videos about but the examples or use cases they give are either dummy or not practical. So I just want to know what are the real life scenarios where this patterns can be useful and which are the most used. I hope someone could help me

Answer 1

Singleton, Factory which are creational patterns.
Proxy, Facade, Adapter, Observer, Subscriber/Publisher, DB and some more.