Observer Design Pattern

Описание

# Observer design pattern # Observer pattern
The Observer pattern is a design pattern in which an object,
called the subject which is Publisher, maintains a list of its dependents,
called observers basically called Subscribers, and notifies them automatically of any state changes, usually by calling one of their methods.

In this video, learn why the Observer Pattern is such an important design pattern.

I tell you what the observer pattern is, how it works, and explain it with an example.