eventtarget.js

import EventEmitter from 'events';

export default class EventTarget extends EventEmitter {
  
  addEventListener(type, cb, options = {}) {
    this.on(type, cb);
  }

  removeEventListener(type, cb, options = {}) {
    this.removeListener(type, cb); 
  }

  dispatchEvent(event) {
    this.emit(event.type, event);
  }

}