$ ./node --experimental-modules
> (node:14483) ExperimentalWarning: The ESM module loader is experimental.
> import('fs').then(console.log, console.log)
Promise {
  <pending>,
  domain:
   Domain {
     domain: null,
     _events:
      { removeListener: [Function: updateExceptionCapture],
        newListener: [Function: updateExceptionCapture],
        error: [Function: debugDomainError] },
     _eventsCount: 3,
     _maxListeners: undefined,
     members: [] } }
> { TypeError [ERR_INVALID_URL]: Invalid URL: repl
    at onParseError (internal/url.js:226:17)
    at parse (internal/url.js:235:3)
    at new URL (internal/url.js:318:5)
    at normalizeReferrerURL (internal/process/esm_loader.js:18:10)
    at setImportModuleDynamicallyCallback (internal/process/esm_loader.js:51:37)
    at process._tickCallback (internal/process/next_tick.js:114:7) input: 'repl' }