Design Pattern- The Observer Pattern

Step by Step explanation of Observer Pattern in Practice

This is probably one of the most used design patterns in software development. If you feel unfamiliar with the name, maybe you might have heard its’ another name Publisher-Subscriber pattern. It almost can be seen everywhere in our daily apps, for example, emails, subscription news updates, real-time stock charts updates, etc.

If you still haven’t heard any of the above, that is great, we are going to explore this design pattern together with a…