countryCodeOf static method

String? countryCodeOf(
  1. String? code
)

Implementation

static String? countryCodeOf(String? code) {
  switch (codeType(code)) {
    case UCodeType.country:
      return null;
    case UCodeType.province:
      return code!.substring(0, 3);
    case UCodeType.city:
      return "001";
    case UCodeType.unknown:
      return null;
  }
}