# ValidatorUtil

<code dart>
class ValidatorUtil {
  static String? minLength(String? value, {int length = 1}) {
    if (value == null || value.isEmpty || value.trim().length < length) {
      if (length == 1) return t.validator.more_than_one_length;
      return t.validator.more_than_length(length: length);
    }
    return null;
  }

  static String? email(String? value) {
    final emailReg = RegExp(r'^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$');
    if (value == null || emailReg.hasMatch(value) == false) {
      return t.validator.email_format;
    }
    return null;
  }
}

</code>