ensureMinLength method
Ensure mi lenght and generate rand chars
Implementation
String ensureMinLength({int minLength = 8}) {
const String characters = 'abcdefghijklmnopqrstuvwxyz0123456789';
final Random rand = Random();
String input = this;
while (input.length < minLength) {
final randomChar = characters[rand.nextInt(characters.length)];
input += randomChar;
}
return input;
}