generateRandomString function
Implementation
String generateRandomString(int length) {
final _random = Random();
const _availableChars =
'AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz1234567890';
final randomString = List.generate(length,
(index) => _availableChars[_random.nextInt(_availableChars.length)])
.join();
return randomString;
}