validateMinMaxStringLength function

bool validateMinMaxStringLength({ required int minLength, required int maxLength, required String value, })

validate is string value length >= minLength and <= maxLength

maxLength should be higher than minLength

maxLength & minLength should be higher than zero

0 < minLength < maxLength

Implementation

bool validateMinMaxStringLength({
  required int minLength,
  required int maxLength,
  required String value,
}) {
  if (minLength <= 0 || maxLength <= 0) {
    throw Exception(
      '''minLength & maxLength should be higher than zero. The value you supplied minLength=$minLength, maxLength=$maxLength''',
    );
  }

  if (minLength >= maxLength) {
    throw Exception(
      '''minLength should be lower than maxLength. The value you supplied minLength=$minLength, maxLength=$maxLength''',
    );
  }
  return value.length >= minLength && value.length <= maxLength;
}