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<p>Node.js is a platform built on <a

href="http://code.google.com/p/v8/">Chrome's JavaScript runtime</a>

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.</p>

<p>Current Version: __VERSION__</p>

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<a href="http://nodejs.org/dist/__VERSION__/node-__VERSION__.tar.gz" class="button downloadbutton" id="downloadbutton">INSTALL</a>

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<h2>Node.js in the Industry</h2>

<ul>

<li class="microsoft"><img src="http://nodejs.org/images/microsoft-logo.png">

<p>Node gives Azure users the first end-to-end JavaScript

experience for the development of a whole new class of real-time

applications.

<br>

<a href="https://www.windowsazure.com/en-us/develop/nodejs">Claudio Caldato</a>

<br>

<span>Principal Program Manager, Microsoft Open Technologies, Inc.</span></p>

</li>

<li class="ebay"><img src="http://nodejs.org/images/ebay-logo.png">

<p>Node’s evented I/O model freed us from worrying about locking

and concurrency issues that are common with multithreaded async

I/O.

<br>

<a href="http://www.ebaytechblog.com/2011/11/30/announcing-ql-io/">Subbu Allamarju</a>

<br>

<span>Principal Member, Technical Staff</span></p></li>

<li class="linkedin"><img src="http://nodejs.org/images/linkedin-logo.png">

<p>On the server side, our entire mobile software stack is

completely built in Node. One reason was scale. The second is

Node showed us huge performance gains.

<br>

<a href="http://venturebeat.com/2011/08/16/linkedin-node/">Kiran Prasad</a>

<br>

<span>Director of Engineering, Mobile</span></p></li>

<li class="yahoo"><img src="http://nodejs.org/images/yahoo-logo.png">

<p>Node.js is the execution core of Manhattan. Allowing

developers to build one code base using one language – that is

the nirvana for developers.

<br>

<a href="http://developer.yahoo.com/blogs/ydn/posts/2011/11/yahoo-announces-cocktails-%E2%80%93-shaken-not-stirred/">Renaud Waldura</a>

<br>

<span>Sr. Product Manger, Cocktail</span></p></li>

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<h2>An example: Webserver</h2>

<p>This simple web server written in Node responds with "Hello World" for every request.</p>

<pre>

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/');</pre>

<p>To run the server, put the code into a file

<code>example.js</code> and execute it with the

<code>node</code> program from the command line:</p>

<pre class="sh_none">

% node example.js

Server running at http://127.0.0.1:1337/</pre>

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

<pre>

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');</pre>

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<h2>Featured</h2>

<a href="http://www.youtube.com/watch?v=jo_B4LTHi3I"><img src="http://nodejs.org/images/ryan-speaker.jpg"></a>

A guided introduction to Node

<h2>Explore Node.js</h2>

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<li><a href="http://blog.nodejs.org" class="explore">Node.js Blog</a><br><span>Insight, perspective and events</span></li>

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<li><a href="http://jobs.nodejs.org/" class="explore">Jobs</a><br><ol class="jobs"><!-- JOBS --><!-- JOBS --></ol></li>

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<p>Copyright <a href="http://joyent.com/">Joyent, Inc</a>, Node.js is a <a href="/trademark-policy.pdf">trademark</a> of Joyent, Inc. View <a href="https://raw.github.com/joyent/node/__VERSION__/LICENSE">license</a>.</p>

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