nameValidator static method

String? nameValidator(
  1. String? value
)

Implementation

static String? nameValidator(String? value) {
  final name = (value ?? "").trim();
  if (name.isEmpty) {
    return "Enter name";
  }
  if (name.length < 3) {
    return "Enter at least 3 characters";
  }
  if (name.length > 100) {
    return "Maximum 100 characters allowed";
  }
  return null;
}