extensions_method_part_2.dart

/*
 * Dart & Flutter - Training
 * 
 * Copyright (c) Boris-Wilfried Nyasse
 * All rights reserved
 * 
*/
extension ExtendedString on String {
  bool get isValidName {
    return !contains(RegExp(r'[0–9]'));
  }
}

void main() {
  print('Pizza'.isValidName);
}