NodeJSbriefly introduced

by Alexandre Lachèze

What’s NodeJS ?

What’s NodeJS ?

What’s JS ?

The world’s most misunderstood programming language has become the world’s most popular

programming language.

– Douglas Crockford

Programming language for browsers

JS

What’s JS ?

"Hello world".toUpperCase() .charAt(3);

Programming language for browsers

What’s JS ?

document.getElementById("content") .appendChild("<div>Hello</div>");

Programming language for browsers

What’s JS ?

Prototypal inheritance

Totallyasynchronous

Event-driven

Prototypal inheritance

Totallyasynchronous

Event-driven

Cat.prototype = { meow :function() { return this.name+" miaou."; }};

Prototypal inheritance

Totallyasynchronous

Event-driven

Dog.prototype = { meow : Cat.prototype.meow};

Prototypal inheritance

Totallyasynchronous

Event-driven

var result = db.query("select * from T");//use result

Prototypal inheritance

Totallyasynchronous

Event-driven

$.ajax("/query.json", function(result) { //use result});

Prototypal inheritance

Totallyasynchronous

Event-driven

el.addEventListener("click", function(evt) { alert("you clicked me ?!");});

JS

browser-side

JS

$>_

server-side

Node

The API should be familiar to client-side JS programmers and old school UNIX hackers.

– Ryan Dahl

Node

The API should be familiar to client-side JS programmers and old school UNIX hackers.

– Ryan Dahl

Node

started 2009

v0.8.7

What’s inside ?

What’s inside ?

.JSV8

C/C++

Chrome’s JS engine V8

Vs.

Event loop Multi-thread

What’s inside ?

Event loop

What’s inside ?

What’s around ?

npm

What’s around ?

opensource communityenergy

Node for what ?

real-time web applications

extensive I/Oapplications

Why node ?

fast(presumed)

scalable(presumed)

LinkedIn

Try it !that’s just JS.

Node

Resources

Slidesthenounproject.com

colourslovers.com

slideshare.net/EmilandDC

Slide design for developpers, Zach Holman

LinkedInHow LinkedIn used Node.js and HTML5 to build a better, faster app

Blazing fast node.js: 10 performance tips from LinkedIn Mobile

JavascriptJS : The World's Most Misunderstood Programming Language, Douglas Crockford

JS : The Good Parts, Douglas Crockford, O'Reilly

JS Patterns, Stoyan Stefanov, O'Reilly

JS Garden

Details of the object model, MDN

Nginxnginx architecture

Making applications scalable with load balancing

Why Events Are A Bad Idea (for high-concurrency servers)

V8code.google.com/p/v8/

developers.google.com/v8

Modulesnpm

express (web framework)

connect

socket.io

node-inspector

modules wiki

meteor (web framework)

Node officialnodejs.org

Joyent

API

Introduction to Node.js with Ryan Dahl

Slides from JSConf 2010 (benchmarks inside !)

Slides from JSConf 2009

Megithub.com/alexstrat