JavaScript

Send a 16-bit Integer over a Socket

Demonstrates Socket.SendInt16, which sends the low 16 bits of a value as a two-byte integer in the selected byte order.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

var success = false;

var socket = new CkSocket();

//  Connect to the server using TLS.
var bTls = true;
var maxWaitMs = 5000;
success = socket.Connect("example.com",5000,bTls,maxWaitMs);
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

//  Send the low 16 bits of the value as a two-byte integer.  Use true for network byte order
//  (big-endian) or false for little-endian.
var bBigEndian = true;
success = socket.SendInt16(1024,bBigEndian);
if (success == false) {
    console.log(socket.LastErrorText);
    return;
}

console.log("16-bit integer sent.");