Building a Publisher-Subscriber Event Bus in JavaScript
Basic Event Bus
A minimal implementation maps topic names to arrays of handler functions.
class EventBus {
constructor() {
this.topics = {};
}
emit(topic, data) {
const queue = this.topics[topic];
if (!queue) {
console.warn('No listeners for: ' + topic);
return;
}
queue.forEach(handler => handler(data)) ...
Posted on Thu, 07 May 2026 06:30:10 +0000 by MetroidMaster1914