simple socket htingy

app.js

var http = require('http');

var server = http.createServer(function (req, res) {
  res.statusCode = 200;
  res.end('<script src="/socket.io/socket.io.js"></script>');
});

var io = require('socket.io').listen(server);

io.sockets.on('connection', function (socket) {
 socket.emit('hi');

 socket.on('ping', function () { socket.emit('pong') });
});

server.listen(8080);

For bonus points type:

x = io.connect(); x.on('pong', function () { console.log('pong'); setTimeout(function () { x.emit('ping') }, 2000); }); x.emit('ping');

in your console after you have opened your browser on http://localhost:8080.