phone static method

String? phone(
  1. String? value, {
  2. String errorMsg = 'Enter a valid phone number',
})

📞Phone Number Validator (IN)

Implementation

static String? phone(
  String? value, {
  String errorMsg = 'Enter a valid phone number',
}) {
  if (value == null || value.trim().isEmpty) {
    return 'Phone number is required';
  }
  return RegExp(r'^\d{10}$').hasMatch(value) ? null : errorMsg;
}