isIntegerOrNull method

bool isIntegerOrNull(
  1. FieldResults result
)

Implementation

bool isIntegerOrNull(FieldResults result) {
  if (result.asString() == "") return true;
  if (result.type == FieldType.string) {
    for (final data in result.values) {
      String value = data.value?.trim() ?? "";
// Use a RegExp to check if the string contains only digits

      if ((!RegExp(r'^\d+$').hasMatch(value)) == false) return false;
    }
  }
  return true;
}