Function isIpv6Hostname

lib/url.js:153–159

(hostname)

}

function isIpv6Hostname(hostname) {
  return (
    StringPrototypeCharCodeAt(hostname, 0) === CHAR_LEFT_SQUARE_BRACKET &&
    StringPrototypeCharCodeAt(hostname, hostname.length - 1) ===
    CHAR_RIGHT_SQUARE_BRACKET
  );
}

// This prevents some common spoofing bugs due to our use of IDNA toASCII. For
// compatibility, the set of characters we use here is the *intersection* of