GLib.hostname_to_ascii

function hostname_to_ascii(hostname: String): String {
    // Gjs wrapper for g_hostname_to_ascii()
}

Converts hostname to its canonical ASCII form; an ASCII-only string containing no uppercase letters and not ending with a trailing dot.

Since 2.22

hostname

a valid UTF-8 or ASCII hostname

Returns

an ASCII hostname, which must be freed, or null if hostname is in some way invalid.