Browser side eventEmitter

EventEmitter.js

class EventEmitter {
  constructor () {
    this.DOM = document.createElement("p")
  }
  on(channel, fn) {
    this.DOM.addEventListener(channel, event => {
      fn(event.detail)
    })
  }
  dispatch(channel, data) {
    const detail = typeof data === 'string' ? data : JSON.stringify(data)
    this.DOM.dispatchEvent(new CustomEvent(channel, { detail }))
  }
}

// Usage
const myEvent = new EventEmitter()
myEvent.on('message', console.log)
myEvent.dispatch('message', 'hi browser side events') // "hi browser side events"

flexeas bien cabrón, dude. Tengo q mejorar mucho