text: const EventEmitter = require('events')
  const fs = require('fs')
  const path = require('path')
  
  const emitter = new EventEmitter()
  
  emitter.on('log', (message) => {
      fs.appendFile(path.join(__dirname, 'log.txt'), message, err => {
          if (err) throw err
      })
  })
  
  
  function log(message){
      emitter.emit('log', message)
  }
  
  module.exports = log