randomString function Null safety

String randomString(
  1. int length
)

Generate a random string of length characters

Implementation

String randomString(int length) {
  final _random = Random.secure();
  final _codeUnits = List<int>.generate(
    length,
    (index) => _charset.codeUnitAt(_random.nextInt(_charset.length)),
  );
  return String.fromCharCodes(_codeUnits);
}