parseValue<T extends num> method

Implementation

T? parseValue<T extends num>(String text) {
  if (text.trim().isEmpty) return null;

  try {
    if (T == int) {
      return int.tryParse(text) as T?;
    } else {
      return double.tryParse(text) as T?;
    }
  } catch (e) {
    return null;
  }
}