upgrade to ESM

[mesqueeb]

see a checklist here
sindresorhus/meta#15

[jclaveau]

This one works with ESM https://github.com/jd1378/is-internet-available

import { isInternetAvailable, InternetAvailabilityService } from 'is-internet-available'

const googleIsReachable = await isInternetAvailable({ authority: 'https://accounts.google.com' });
if (! googleIsReachable) {
  ...
}