pahaz/index.html

## index.html
<!doctype html>
<html lang="en">
  <head>
    <title>Chat Example</title>
  </head>
  <body>
    <script src="/socket.io/socket.io.js"></script>
    <script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
    <script>
      var socket = io.connect();
      var messages = [];

      function do_on_connect () {
        console.log('connect!');
      }

      function do_on_message_from_server (msg) {
        console.log('message!', msg);
        messages.push(msg);
      }

      socket.on('connect', do_on_connect);
      socket.on('message', do_on_message_from_server);

      function send (msg) {
          console.log('Sending message:', msg);
          socket.emit('message', msg);
      };
    </script>
  </body>
</html>

## package.json
{
  "name": "chat-example",
  "version": "0.0.0",
  "description": "A chat example to showcase how to use `socket.io` with a static `express` server",
  "main": "server.js",
  "repository": "",
  "author": "Pahaz Blinov <pahaz.blinov@gmail.com>",
  "dependencies": {
    "express": "~3.2.4",
    "socket.io": "~0.9.14"
  }
}

## server.js
var http = require('http');
var path = require('path');

// WS SERVER
var socketio = require('socket.io');
// HTTP SERVER
var express = require('express');

var router = express();  // создаем роутер
var server = http.createServer(router);  // создаем HTTP сервер
var io = socketio.listen(server);  // для обмена сообщениями с сервером

router.use(express.static(path.resolve(__dirname, '.')));  // будем отдавать файлы

var messages = [];
var clients = [];
var index = 0;

io.on('connection', function (client) {

    for (var i = 0; i < messages.length; i++) {
      client.emit('message', messages[i]);
    }

    clients.push(client);

    client.on('disconnect', function () {
      clients.splice(clients.indexOf(client), 1);
    });

    client.on('message', function (data) {
      if (!data)
        return;
      broadcast(data);  // рассылаем всем клиентам
      messages.push(data);
    });

  });

function broadcast(data) {
  for (var i = 0; i < clients.length; i++) {
    var client = clients[i];
    client.emit('message', data);
  }
}

server.listen(process.env.PORT || 3000, process.env.IP || "0.0.0.0", function(){
  var addr = server.address();
  console.log("Chat server listening at", addr.address + ":" + addr.port);
});
	<!doctype html>
	<html lang="en">
	<head>
	<title>Chat Example</title>
	</head>
	<body>
	<script src="/socket.io/socket.io.js"></script>
	<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
	<script>
	var socket = io.connect();
	var messages = [];

	function do_on_connect () {
	console.log('connect!');
	}

	function do_on_message_from_server (msg) {
	console.log('message!', msg);
	messages.push(msg);
	}

	socket.on('connect', do_on_connect);
	socket.on('message', do_on_message_from_server);

	function send (msg) {
	console.log('Sending message:', msg);
	socket.emit('message', msg);
	};
	</script>
	</body>
	</html>
	{
	"name": "chat-example",
	"version": "0.0.0",
	"description": "A chat example to showcase how to use `socket.io` with a static `express` server",
	"main": "server.js",
	"repository": "",
	"author": "Pahaz Blinov <pahaz.blinov@gmail.com>",
	"dependencies": {
	"express": "~3.2.4",
	"socket.io": "~0.9.14"
	}
	}
	var http = require('http');
	var path = require('path');

	// WS SERVER
	var socketio = require('socket.io');
	// HTTP SERVER
	var express = require('express');

	var router = express(); // создаем роутер
	var server = http.createServer(router); // создаем HTTP сервер
	var io = socketio.listen(server); // для обмена сообщениями с сервером

	router.use(express.static(path.resolve(__dirname, '.'))); // будем отдавать файлы

	var messages = [];
	var clients = [];
	var index = 0;

	io.on('connection', function (client) {

	for (var i = 0; i < messages.length; i++) {
	client.emit('message', messages[i]);
	}

	clients.push(client);

	client.on('disconnect', function () {
	clients.splice(clients.indexOf(client), 1);
	});

	client.on('message', function (data) {
	if (!data)
	return;
	broadcast(data); // рассылаем всем клиентам
	messages.push(data);
	});

	});

	function broadcast(data) {
	for (var i = 0; i < clients.length; i++) {
	var client = clients[i];
	client.emit('message', data);
	}
	}

	server.listen(process.env.PORT \|\| 3000, process.env.IP \|\| "0.0.0.0", function(){
	var addr = server.address();
	console.log("Chat server listening at", addr.address + ":" + addr.port);
	});