React Event Emitter

Inspired by https://lolahef.medium.com/react-event-emitter-9a3bb0c719

function createEventEmitter() {
  return {
    subscriptions: new Set(),
    emit(value) {
      for (const callback of this.subscriptions) {
        callback(value);
      }
    },
    subscribe(callback) {
      this.subscriptions.add(callback);
      return () => {
        this.subscriptions.delete(callback);
      };
    },
  };
}
const eventEmitter = createEventEmitter();
const unsubscribe = eventEmitter.subscribe(console.log);
eventEmitter.emit(1);
eventEmitter.emit(2);
eventEmitter.emit(3);
const dispatch = (action) => eventEmitter.emit(action);
dispatch({type: 'EVENT_NAME', payload: 'Some data'});
unsubscribe();
eventEmitter.emit('No console.log we are unsubscribed.');