IP Address Generator/Validator

ipAddressGenerator.js

function run() {
 const listIp = []
 for (let index = 0; index < 1000; index++) {
  const ip = (Math.floor(Math.random() * 255) + 1)+"."+(Math.floor(Math.random() * 255))+"."+(Math.floor(Math.random() * 255))+"."+(Math.floor(Math.random() * 255));
  listIp.push(ip);
 }
 console.log('listIp: ', JSON.stringify(listIp))
}
run()

ipAddressValidator.js

function isIpAddress(ipAddress) {
  return /^(?:[0-9]{1,3}\.){3}[0-9]{1,3}$/i.test(ipAddress);
}