SubOption Event
Fired when a Telnet SubOption command comes from the Telnet server.
Syntax
telnet.on('SubOption', listener: (e: {readonly subOption: string, readonly subOptionB: Uint8Array}) => void )
Remarks
The SubOption parameter contains the suboption data as sent by the other end. The enclosing suboption command codes are stripped away.
For a list of valid Telnet suboptions and their descriptions please look at the Telnet RFCs.