# Method Stdio.UDP()->send()

Method send

  `int send(string to, int|string port, string message)`
  `int send(string to, int|string port, string message, int flags)`

Description

  Send data to a UDP socket. The recipient address will be to and port will be port.

  Flag flag is a bitfield, 1 for out of band data and 2 for don't route flag.

Returns

  The number of bytes that were actually written.