Method emit

src/lib/EventHandler.js:197–204

* Helper to emit events via postMessage using a port. * @param {String} event The event descriptor * @param {Object} options (optional) Data to be sent in the event

(event, options = {})

   * @param  {Object} options   (optional) Data to be sent in the event
   */
  emit(event, options = {}) {
    if (!event || typeof event !== 'string') {
      throw new Error('Invalid event!');
    }
    this.#checkConnection();
    options.event = event;
    this._port.postMessage(options);
  }

  trigger(event, options = {}) {
    if (!event || typeof event !== 'string') {