Node.js is a JavaScript runtime environment built on Chrome's V8 JavaScript engine. It allows JavaScript to be used for server-side scripting and is primarily used for real-time web applications and extensive I/O applications. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient for data-intensive real-time applications that run across distributed devices.

1. NodeJS
briefly introduced
by Alexandre Lachèze

2. What’s NodeJS ?

3. What’s NodeJS ?

4. What’s JS ?

5. The world’s most misunderstood programming
language has become the world’s most popular
programming language.
– Douglas Crockford

6. What’s JS ?
Programming language for browsers
JS

7. What’s JS ?
Programming language for browsers
"Hello world".toUpperCase()
.charAt(3);

8. What’s JS ?
Programming language for browsers
document.getElementById("content")
.appendChild("<div>Hello</div>");

9. Prototypal Totally
Event-driven
inheritance asynchronous

10. Prototypal Totally
Event-driven
inheritance asynchronous
Cat.prototype = {
meow :function() {
return this.name+" miaou.";
}
};

11. Prototypal Totally
Event-driven
inheritance asynchronous
Dog.prototype = {
meow : Cat.prototype.meow
};

12. Prototypal Totally
Event-driven
inheritance asynchronous
var result = db.query("select * from T");
//use result

13. Prototypal Totally
Event-driven
inheritance asynchronous
$.ajax("/query.json", function(result) {
//use result
});

14. Prototypal Totally
Event-driven
inheritance asynchronous
el.addEventListener("click", function(evt) {
alert("you clicked me ?!");
});

15. JS
browser-side

16. $>_
JS
server-side

17. Node
The API should be familiar to client-side JS
programmers and old school UNIX hackers.
– Ryan Dahl

18. Node
The API should be familiar to client-side JS
programmers and old school UNIX hackers.
– Ryan Dahl

19. Node
v0.8.7
started 2009

20. What’s inside ?

21. What’s inside ?
V8
C/C++
.JS
Chrome’s JS engine V8

22. What’s inside ?
Vs.
Event loop Multi-thread

23. What’s inside ?
Event loop

24. What’s around ?
npm

25. What’s around ?
opensource community
energy

26. Node for what ?
real-time web extensive I/O
applications applications

27. Why node ?
fast scalable
(presumed) (presumed)

28. LinkedIn

29. Node
Try it !
that’s just JS.

30. Modules
npm
Resources modules wiki
express (web framework)
connect
Me Nginx socket.io
github.com/alexstrat nginx architecture node-inspector
Making applications scalable meteor (web framework)
Node official with load balancing
nodejs.org Why Events Are A Bad Idea (for
LinkedIn
Joyent high-concurrency servers) How LinkedIn used Node.js and HTML5
to build a better, faster app
API
Introduction to Node.js
Javascript Blazing fast node.js: 10 performance
tips from LinkedIn Mobile
with Ryan Dahl
JS : The World's Most Misunderstood
Programming Language, Douglas
Slides from JSConf 2009 Crockford
Slides from JSConf 2010 JS : The Good Parts, Douglas
Slides
(benchmarks inside !) Crockford, O'Reilly thenounproject.com
JS Patterns, Stoyan Stefanov, colourslovers.com
V8 O'Reilly
slideshare.net/EmilandDC
code.google.com/p/v8/ JS Garden
Slide design for developpers, Zach
developers.google.com/v8 Details of the object model, MDN Holman