combine static method

String? Function(String?) combine(List<String? Function(String?)> validators)

Combines multiple validators

Implementation

static String? Function(String?) combine(
  List<String? Function(String?)> validators,
) {
  return (String? value) {
    for (final validator in validators) {
      final error = validator(value);
      if (error != null) {
        return error;
      }
    }
    return null;
  };
}