Introducing
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process
window
Bootstrap
ReferenceError: alert is not defined
$ sudo apt-get install node
$ vi server.js
$ node server.js
JS global object
Goodies!
Good
Bad
later
express.js
language that you already know
server and client paradigms
are different
$ sudo apt-get install npm
$ npm install express
low entry barrier
callbacks are a pain
socket.io
productivity
async code is hard to read
lightweight, low memory usage
not type safe
async.js
Hello from server!
no great IDE
or promises
throughput
performs better than you expect
single thread works for non CPU-intensive apps
var http = require('http');
http.createServer(function(req, res) {
res.end('Hej världen!');
}).listen(8080);
Hello World?
console.log('¡Hola el mundo!')
Introduction
"Almost no function in Node directly performs I/O, so the process never blocks. Because nothing blocks, less-than-expert programmers are able to develop fast systems."
Server-side JavaScript
Asynchronous programming
event-driven
V8
REPL
Single-threaded
no concurrency
One language
non-blocking
that you already know
Reactor pattern
npm
Therefore
Play with it to broad your horizons!
Good for small projects
(LinkedIn and Wallmart use it for mobile apps)
(also trendy and cool)
Perfect for prototypes!