tt_GUID function

Implementation

dynamic tt_GUID() {
  final rng = Random.secure();
  final bytes = List<int>.generate(16, (_) => rng.nextInt(256));
  bytes[6] = (bytes[6] & 0x0F) | 0x40;
  bytes[8] = (bytes[8] & 0x3F) | 0x80;
  final hex = bytes.map((b) => b.toRadixString(16).padLeft(2, "0")).toList();
  return '${hex.sublist(0,4).join()}-${hex.sublist(4,6).join()}-${hex.sublist(6,8).join()}-${hex.sublist(8,10).join()}-${hex.sublist(10).join()}';
}