node.js
N00b no more!
A lightweight introduction to node.js
- n00b
- beginner
- intermediar
- ninja
Event-driven, non-blocking I/O model
Similar in design to Event Machine in Ruby, Twisted in Python or React in Php
- Server-side Javascript
- Code executed by the V8 engine
- Single-threaded [1]
- System bindings written in C++
- Started in 2009
- First Released in 2011
1: multiple threads for file and network events
INSTALL
Use installer for Windows or Mac or package manager for Linux
$ bash hello-world.sh
$ java hello-world.jar
$ php hello-world.php
$ python hello-world.py
$ ruby hello-world.rb
$ node hello-world.js
hello-world.js
console.log('Hello World!');
Hello World!
hello-www-world.js
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.send('Hello World!\n');
}).listen(1337, "127.0.0.1");
console.log('Server running at http://127.0.0.1:1337/');
Server running at http://127.0.0.1:1337/
Hello World!
var http = require('http');
require
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
node package manager
npm <command> [args]
$ npm install ________
$ npm install express
- n00b
- beginner
- intermediar
- ninja
Express
hello-www-world-express.js
var express, app, server;
express = require('express');
app = express();
app.get('/hello-world.txt', function(request, response){
response.send('Hello World!');
});
server = app.listen(1337, function() {
console.log('Listening on port %d', server.address().port);
});
Server running at http://127.0.0.1:1337/
Cannot GET /
hello-www-world-express.js
var express, app, server;
express = require('express');
app = express();
app.get('/hello-world.txt', function(request, response){
response.send('Hello World!');
});
server = app.listen(1337, function() {
console.log('Listening on port %d', server.address().port);
});
Hello World!
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| Grunt | JsHint | CssLint | Bower |
|---|---|---|---|
| The JavaScript Task Runner | Detects errors and problems in JavaScript code | Points out problems with your CSS code | A package manager for the web |
Get it
Try it
Grok it
- Slideshow made with reveal.js
- Question icon by Krisada from The Noun Project licensed under Creative Commons Attribution