Mediator Pattern

The video tutorial explains the mediator pattern, a behavioral design pattern that facilitates communication between objects, known as colleagues, through a mediator. The example used is a chat room where users can send messages to each other or broadcast to the entire room. The tutorial covers creating constructor functions for users and the chat room, implementing send and receive functions, registering users, and handling message sending and broadcasting. The tutorial emphasizes understanding JavaScript's object-oriented code and suggests practicing with prototypes before using ES6 classes.

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