Broadcasting Events

The video tutorial explains how to use Socket.IO to manage events in a chat application. It covers emitting events when users join or leave the chat room, using different methods like socket.emit, IO.emit, and broadcast. The tutorial also demonstrates testing these features in a browser and handling user disconnection events. By the end, viewers will understand how to implement basic chat features using Socket.IO.

What is the purpose of using socket.broadcast.emit?

What built-in event is used to detect when a client disconnects?

How can you ensure that all connected clients receive a message when a user disconnects?