@mr-samani/event-bus/index.js

A lightweight JavaScript event bus for any framework

const bus = {
  events: {},
  on(name, callback) {
    if (!this.events[name]) this.events[name] = [];
    this.events[name].push(callback);
  },
  off(name) {
    delete this.events[name];
  },
  trigger(name, ...args) {
    if (this.events[name]) {
      this.events[name].forEach((cb) => cb(...args));
    }
  },
};

// Attach to global object
if (typeof window !== "undefined") {
  window.app = window.app || {};
  window.app.event = bus;
} else if (typeof global !== "undefined") {
  global.app = global.app || {};
  global.app.event = bus;
}

// Export for environments that still want import
export default bus;