[NodeJS] 외부에서 localhost로 접속해보자

=> sudo npm i -g localtunnel

added 22 packages, and audited 23 packages in 531ms

3 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities

=> lt --port 3000

your url is: https://something.loca.lt

이제 다른 기기에서 https://something.loca.lt으로 접속