generateUUID function
Implementation
String generateUUID() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replaceAllMapped(
RegExp(r'[xy]'),
(m) {
final r = (_rnd.nextDouble() * 16).floor();
final v = m.group(0) == 'x' ? r : (r & 0x3) | 0x8;
return v.toRadixString(16);
},
);
}