toDomainExtension method

String toDomainExtension(
  1. String str
)

Extract just the domain extension (TLD) from a URL or domain string.

Implementation

String toDomainExtension(String str) {
  final domain = toDomainName(str);
  final dotIndex = domain.indexOf('.');
  if (dotIndex == -1) return '';
  return domain.substring(dotIndex); // everything from first '.' onward
}