Building web apps with node.js, socket.io, knockout.js and zombie.js

I found this nice looking slide for understanding the concept of all these new technologies (atleast for me). I thought of sharing with more people 🙂

Node.js is becoming very popular nowdays, mainly because of two reasons

Architecture

Javascript

There are many more things that can be done with node.js

Source: nodejs.org
An example: Webserver

This simple web server written in Node responds with “Hello World” for every request.

var http = require('http');
http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(1337, '127.0.0.1');
console.log('Server running at http://127.0.0.1:1337/');

To run the server, put the code into a file example.js and execute it with the node program:

% node example.js
Server running at http://127.0.0.1:1337/

Here is an example of a simple TCP server which listens on port 1337 and echoes whatever you send it:

var net = require('net');

var server = net.createServer(function (socket) {
  socket.write('Echo server\r\n');
  socket.pipe(socket);
});

server.listen(1337, '127.0.0.1');

It is just so easy to create a web server / tcp server using nodejs and the best part is using javascript. This is something good news for the javascript developers without the need of learning any other language.