Node.js
What is Node.js?
Node.js® is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient, perfect for data-intensive real-time applications that run across distributed devices.
Node.js basics
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 from the command line:
% 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');