Node.js: The Good Parts

There's a new kid in town.

Find out what's great about node and why it's so hot right now!

Presented at #convergese on 26 April 2013

Transcript

1. Node.js:
   The Good Parts
   There's a new kid in town;
   time to say hello.
   Brought to you by @rockbot
   

   View Slide

2. Welcome to the Playground
   (Ruby)
   (Python)
   Scheme
   Go
   Erlang
   Clojure
   (JavaScript)
   (PHP)
   (C#)
   

   View Slide

3. Node === Awesomesauce
   ○ Quick
   ○ Independent
   ○ Familiar
   ○ Modular
   ○ Plays well with others
   ○ MVP of MVC
   ○ Widely used
   ○ Super easy to get started
   

   View Slide

4. Fast and Asynchronous
   Powered by the V8 JavaScript Engine
   Evented, non-blocking I/O
   

   View Slide

5. Single Thread, Non-Blocking
   Time
   Blocking Non-Blocking
   

   View Slide

6. Single Thread, Non-Blocking
   Time
   Multi-Threaded,
   Blocking
   Non-Blocking
   

   View Slide

7. Everywhere You Want to Be
   It's just JavaScript!
   Easy context switching between
   front-end and backend
   

   View Slide

8. Party with npm
   modules : node :: gems : ruby
   lots of small, modular packages that
   can be added to programs via require
   

   View Slide

9. Use it Your Way
   Favorite DBs:
   ○ MongoDB
   ○ CouchDB
   ○ MySQL
   ○ and more!
   Preprocessors:
   ○ Jade (HTML)
   ○ Stylus (CSS)
   ○ ERB
   ○ Sass
   

   View Slide

10. Model-View-Controller?
    Totally!
    Customize your experience with a
    framework like Express or Flatiron to
    help organize your code
    

    View Slide

11. JIFASNIF
    JavaScript is fun and so node is fun!
    #nodejs
    IRC, Google Groups, GitHub, Twitter,
    Meetups, Conferences...!
    

    View Slide

12. Node.js in the Wild
    Companies that use node.js right now
    

    View Slide

13. Ready to Start your
    Relationship?
    Spin up a server in no time...
    and get hacking!
    

    View Slide

14. Basics: A Really Simple
    Web Server
    var http = require('http');
    http.createServer(function (req, res) {
    res.writeHead(200, {'Content-Type':
    'text/plain'});
    res.end('Hello World\n');
    }).listen(1337, '127.0.0.1');
    console.log('Server running at http://127.
    0.0.1:1337/');
    

    View Slide

15. Basics: A Really Simple
    Web Server
    % node example.js
    Server running at http://127.0.0.1:1337/
    

    View Slide

16. Basics: A Really Simple
    Web Server
    % npm install express
    % express projectName
    % cd projectName && npm install
    % node app.js
    Server running at http://localhost:3000
    

    View Slide

17. node.js:
    The Less Good Parts
    ○ "Pyramid of Doom"
    ○ Core keeps changing
    ○ Too many options
    ○ Overkill for static sites
    ○ Scalability
    ○ Memory leaks (closures)
    ○ CoffeeScript, etc
    

    View Slide

18. Raquel Vélez
    @rockbot
    Engineer
    rockbot@storify.com
    

    View Slide