A lightweight introduction to NodeJS. Source code available at github.com/potherca/Presentations/tree/gh-pages/node.js-noob-level

1. NODE.JS
N00B NO MORE!
A LIGHTWEIGHT INTRODUCTION TO NODE.JS

2. 1. n00b
2. beginner
3. intermediar
4. ninja

3. EVENT-DRIVEN, NON-BLOCKING I/O MODEL
Similar in design to in Ruby, in
Python or in Php
Event Machine Twisted
React
Server-side Javascript
Code executed by the engine
Single-threaded [1]
System bindings written in C++
Started in 2009
First Released in 2011
1:multiplethreadsforfileandnetworkevents
V8

4. INSTALL
USE ORINSTALLER FOR WINDOWS OR MAC
PACKAGE MANAGER FOR LINUX

5. $ bash hello-world.sh
$ java hello-world.jar
$ php hello-world.php
$ python hello-world.py
$ ruby hello-world.rb
$ node hello-world.js

6. hello-world.js
console.log('HelloWorld!');

7. Hello World!

8. hello-www-world.js
varhttp=require('http');
http.createServer(function(request,response){
response.writeHead(200,{'Content-Type':'text/plain'});
response.send('HelloWorld!n');
}).listen(1337,"127.0.0.1");
console.log('Serverrunningathttp://127.0.0.1:1337/');

9. Server running at http://127.0.0.1:1337/

10. Hello World!

12. varhttp=require('http');

13. REQUIRE

14. CORE MODULES
assert, buffer, childprocess, cluster, console, constants, crypto,
debugger, dgram, dns, domain, events, freelist, fs, http, https,
linklist, module, net, os, path, punycode, querystring, readline,
repl, stream, stringdecoder, sys, timers, tls, tty, url, util, vm, zlib,
https://github.com/joyent/node/tree/master/lib

15. NODE PACKAGE
MANAGER

16. npm <command> [args]

17. $ npm install ________

19. $ npm install express

20. 1. n00b
2. beginner
3. intermediar
4. ninja

21. EXPRESS
GeekList
Klout
Koding
MySpace

22. hello-www-world-express.js
varexpress,app,server;
express=require('express');
app=express();
app.get('/hello-world.txt',function(request,response){
response.send('HelloWorld!');
});
varserver=app.listen(1337,function(){
console.log('Listeningonport%d',server.address().port);
});

23. Server running at http://127.0.0.1:1337/

24. Cannot GET /

25. hello-www-world-express.js
varexpress,app,server;
express=require('express');
app=express();
app.get('/hello-world.txt',function(request,response){
response.send('HelloWorld!');
});
varserver=app.listen(1337,function(){
console.log('Listeningonport%d',server.address().port);
});

26. Hello World!

27. The JavaScript
Task Runner
Detects errors
and problems
in JavaScript
code
Points out
problems with
your CSS code
A package
manager for
the web
Grunt JsHint CssHint Bower

28. GET IT
TRY IT
GROK IT

30. HTTP://POTHER.CA
@POTHERCA
0

31. Slideshow made with
licensed
under Creative Commons Attribution
reveal.js
Question icon by Krisada from The Noun Project