yarscript/app.js

## app.js
var io      = require('socket.io');
var express = require('express');

var app      = express.createServer();
var server   = app.listen(8080);
var ioServer = io.listen(server);

app.get('/', function (req, res) {
  res.sendfile(__dirname + '/index.html');
});

ioServer.sockets.on('connection', function (socket) {
  socket.send('Hello out there!');
  socket.on('message', function (msg) {
    console.log('Message Received: ', msg);
  });
});

## index.html
<html>
  <head>
    <script src="/socket.io/socket.io.js"></script>
    <script>
      var socket = io.connect();

      socket.on('connect', function () {
        console.log('Connected');

        socket.on('message', function(message) {
          console.log(message);
        });

        socket.on('disconnect', function() {
          console.log('Disconnected');
        });
      });
    </script>
  </head>
  <body>
  </body>
</html>
	var io = require('socket.io');
	var express = require('express');

	var app = express.createServer();
	var server = app.listen(8080);
	var ioServer = io.listen(server);

	app.get('/', function (req, res) {
	res.sendfile(__dirname + '/index.html');
	});

	ioServer.sockets.on('connection', function (socket) {
	socket.send('Hello out there!');
	socket.on('message', function (msg) {
	console.log('Message Received: ', msg);
	});
	});
	<html>
	<head>
	<script src="/socket.io/socket.io.js"></script>
	<script>
	var socket = io.connect();

	socket.on('connect', function () {
	console.log('Connected');

	socket.on('message', function(message) {
	console.log(message);
	});

	socket.on('disconnect', function() {
	console.log('Disconnected');
	});
	});
	</script>
	</head>
	<body>
	</body>
	</html>