Node.js is a cross-platform JavaScript runtime environment that allows for building server-side and networking applications. It uses Google's V8 JavaScript engine and supports asynchronous programming which makes it suitable for data-intensive real-time applications that run across distributed devices. Some key advantages are that it is fast, supports many concurrent connections, and has a large ecosystem of libraries available through npm. However, it is still maturing and relies on JavaScript.

1. Node ?
www.nodejs.org

2. cross platform
server side javascript
google chrome V8

3. PROS
● fast
● C10K
● asynchronous
● libraries, npm
● heroku, azure...
● it's javascript

4. CONS
● not stable yet
● it's javascript

5. Hello world PHP
echo "Hellon";
sleep(5);
echo "worldn";

6. Hello world Python
print "Hello"
time.sleep(5)
print "world"

7. Hello world Node
setTimeout(function () {
console.log("world");
}, 5000);
console.log("Hello");

8. Web server
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type':
'text/plain'});
res.end('Hello Worldn');
}).listen(80);

9. npm install
● express, ...
● ms-sql, mysql, postgresql,
oracle, ...
● redis, mongo, ...
● mustache, haml, ...
● socket.io

10. npmjs.org
"10942 total packages"

11. Saša Matijašić
www.logit.hr
sasha@logit.hr
twitter: @returnnull
google+: selectnull.com/+