Function setUnrefTimeout

lib/internal/timers.js:410–418

(callback, after)

}

function setUnrefTimeout(callback, after) {
  // Type checking identical to setTimeout()
  validateFunction(callback, 'callback');

  const timer = new Timeout(callback, after, undefined, false, false);
  insert(timer, timer._idleTimeout);

  return timer;
}

// Type checking used by timers.enroll() and Socket#setTimeout()
function getTimerDuration(msecs, name) {