Client-Side Event Handling
Manage connection events like `open`, `message`, `error`, and `close` effectively in the browser.
Intro: Why Events Matter
WebSockets are dynamic! Unlike simple HTTP requests, a WebSocket connection stays open. This means you need a way to know when things happen on that connection.
That's where event handling comes in. It allows your browser application to react to the connection opening, messages arriving, errors, or the connection closing.
Connection Established: `onopen`
The first important event is open. This fires as soon as your WebSocket connection has been successfully established and is ready to send and receive data.
It's your green light to start communicating!
All lessons in this course
- Browser WebSocket API Fundamentals
- Sending and Receiving Data
- Client-Side Event Handling
- Automatic Reconnection on the Client