minValue static method

String? minValue(
  1. String? value,
  2. num min, {
  3. String? message,
})

Implementation

static String? minValue(String? value, num min,
    {String? message}) {
  final v = num.tryParse(value ?? '');
  if (v == null) return null;

  if (v < min) {
    return message ?? "Minimum value is $min";
  }
  return null;
}