formatPhoneNumber function
Implementation
String formatPhoneNumber({
required String countryCode,
required String phoneNumber,
}) {
final String kCountryCode =
!countryCode.startsWith('+') ? '+$countryCode' : countryCode;
if (kCountryCode == '+1') {
return '$countryCode$phoneNumber';
}
final String kPhoneNumber =
phoneNumber.startsWith('0') ? phoneNumber.substring(1) : phoneNumber;
return '$kCountryCode$kPhoneNumber';
}