Node.js - A practical Introduction

A practical introduction 15.06.2012 - Big Tech Day 5, Munich
Felix Geisendörfer

Felix Geisendörfer

transloadit.com

core contributor

npm modules

node-formidable

node-mysql

~50 modules total

(@)felixge(.de)

Audience

Software Developers?

JavaScript Developers?

Heard about node.js?

Using node.js?

What is node.js?

JavaScript on the Server

Hello World

1 var http = require('http'); 2 3 http.createServer(function(req, res) {
4 res.end('Hello World'); 5 }).listen(8080); hello world http server in node.js

Features • TCP / UDP • HTTP / HTTPS •
File System • Buffers (byte arrays) • DNS • Child Processes • Http / Https • Crypto • ZLIB • Readline / TTY / REPL

< 5 min to install Windows, Mac, Linux

History

1995 LiveWire released

1997 Rhino started

Ryan Dahl starts the node project (first commit) Feb 16,
2009

I discovered node.js (v0.0.6) ~June, 2009

Isaac Schlueter starts the npm package manager Sep 29, 2009

Ryan’s talk at JSConf.EU gets people excited about node Nov
7, 2009

What is special?

Non-blocking I/O

var image = fs.readFileSync('some.jpeg'); console.log('hello'); vs fs.readFile('some.jpeg', function(err, image) {
}); console.log('hello');

Easy concurrency

Low memory usage

Good performance

Node.js - A practical Introduction

Node.js - A practical Introduction

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