Question from the Node.js test

const fs = require('fs')
const filePath = 'file.txt'

fs.watch(filePath, 'utf-8').on('fileChange', function () {
  console.log('File changed')
})

const fs = require('fs')
const filePath = 'file.txt'

fs.watch(filePath, 'utf-8', function () {
  console.log('File changed')
})

const fs = require('fs')
const filePath = 'file.txt'

fs.watch(filePath, 'utf-8').on('change', function () {
  console.log('File changed')
})

const fs = require('fs')
const filePath = 'file.txt'

fs.watchFile(filePath, 'utf-8', function () {
  console.log('File changed')
})