randomString function
Implementation
String randomString({int length = 8}) {
const characters = 'abcdefghijklmnopqrstuvwxyz0123456789';
return List.generate(length, (index) {
final randomIndex =
(characters.length *
(DateTime.now().microsecondsSinceEpoch % 1000) /
1000)
.floor();
return characters[randomIndex];
}).join();
}