Typescript server

/// <reference path="d.ts/node.d.ts"/>
/// <reference path="d.ts/socket.io.d.ts"/>
/// <reference path="d.ts/express3.d.ts"/>

import express3 = module("express3");
var express = require("express");
var app = express();
app.use(express.static(__dirname));
app.set("views", __dirname+"/views");
app.set("view engine", "jade");

app.get("/", (req, res) => { res.render("index"); });

var port = 5000;
var server=app.listen(port);

import socketio = module("socket.io");
var io=socketio.listen(app);
io.sockets.on("connection", (socket) => { socket.emit("news", "data"); });