How do I implement an event bus in my application?

How do I implement an event bus in my application?

To implement an event bus, you can create a central hub that manages event subscriptions and notifications.

What programming languages can I use for this?

You can implement an event bus in various languages like JavaScript, Python, or Java. It depends on your application stack.

Can you give me a simple code example?

Sure! Here's a basic example in JavaScript:

class EventBus {
    constructor() {
        this.listeners = {};
    }

    on(event, listener) {
        if (!this.listeners[event]) {
            this.listeners[event] = [];
        }
        this.listeners[event].push(listener);
    }

    emit(event, data) {
        if (this.listeners[event]) {
            this.listeners[event].forEach(listener => listener(data));
        }
    }
}

This creates an event bus where you can subscribe to events and emit them.

How do I handle multiple events?

You can simply call the on method multiple times for different events, and use the emit method to trigger them as needed.