A Simple node.js chat server using telent from O'reilly's node up and running.

server-telnet-node-chat.js

// A Simple nod.js chat server using telent from O'reilly's node up and running


var net = require('net')

var chatServer = net.createServer()
	clientList = []

chatServer.on('connection', function(client) {
	client.name = client.remoteAddress + ':' + client.remotePort
	client.write('Hi ' + client.name + '!\n');
	
	clientList.push(client)

	client.on('data', function(data) {	
		broadcast(data, client)
	})

	client.on('end', function() { 
		clientList.splice(clientList.indexOf(client), 1)
  })

})

function broadcast(message, client) {
	// Echo the sending client's name to all clients receiving the message
	for(var i=0;i<clientList.length;i+=1) {
		if(client !== clientList[i]) {
			clientList[i].write(client.name + " said: " + message)
		}
		// Echo the >> character so client sending knows he sent it
		else client.write(">> " + message)
	}	
}

chatServer.listen(9000)
console.log('Listening on port 9000...');

This seems a little cleaner for some reason. I wrapped the client.write for the sending client within the broadcast on line 32

Let's figure out how to include the date and time each message was sent, and echo that back to the client(s). It is probably pretty simple to do with javascript.