Vue 3 - Event Bus Not Emitting Events Between Components in Different Hierarchies
I'm working on a Vue 3 application where I need to communicate between sibling components that do not share a direct parent-child relationship. I've implemented an Event Bus using Vue's reactive system to handle this but I'm running into issues where the events are not being emitted or caught as expected. Here's the basic structure of my components: ```javascript // eventBus.js import { reactive } from 'vue'; const eventBus = reactive({ events: {}, emit(event, data) { this.events[event] = data; }, on(event, callback) { this.$watch( () => this.events[event], (newValue) => { if (newValue) callback(newValue); } ); } }); export default eventBus; ``` In `ComponentA.vue`, I emit an event like this: ```javascript <template> <button @click="sendMessage">Send Message</button> </template> <script> import eventBus from './eventBus.js'; export default { methods: { sendMessage() { eventBus.emit('messageSent', 'Hello from Component A!'); } } }; </script> ``` And in `ComponentB.vue`, I try to listen for this event: ```javascript <template> <div>Message: {{ message }}</div> </template> <script> import eventBus from './eventBus.js'; import { ref, onMounted } from 'vue'; export default { setup() { const message = ref(''); eventBus.on('messageSent', (data) => { message.value = data; }); return { message }; } }; </script> ``` The issue I'm facing is that when I click the button in `ComponentA`, `ComponentB` does not seem to receive the emitted event. I expected the message to update in `ComponentB`, but it remains empty. I've verified that `ComponentA` and `ComponentB` are both rendered on the page. Additionally, I see no errors in the console, and the event is indeed emitted since I verified it with a `console.log` in `sendMessage`. Am I missing something in the Event Bus implementation, or is there a better pattern for handling inter-component communication in Vue 3? Any assistance would be greatly appreciated!