Hungarian Webkonf: Why Node.js?

My talk for the Hungarian webkonf, targeting newcomers to get a feeling of node.js and inspire them to learn it.

http://risingstack.com

Transcript

1. Why Node.js? #webkonf Gergely Nemeth @nthgergo
2. WHOAMI nodebp.com oneshot.risingstack.com risingstack.com
3. JAVASCRIPT - created in 1995 - runs in every major browser - prototype-based, dynamic typing, first- class functions
4. JAVASCRIPT
5. JAVASCRIPT not just the language of the browser any more
6. FIRST-CLASS CITIZEN IN OSX
7. INTERNET OF THINGS
8. IN THE CLOUD
9. NODE.JS “for easily building fast, scalable network applications”
10. NODE.JS - V8
11. NODE.JS - V8 - nonblocking I/O
12. NODE.JS Blocking I/O the traditional way Nonblocking I/O the Node.js way
13. NODE.JS - V8 - nonblocking I/O - event driven
14. NODE.JS - V8 - nonblocking I/O - event driven - single threaded
15. CALLBACKS fs.readFile('/file', function(err, data) { if (err) throw err; console.log(data); });
16. SOME OF THE ADOPTERS…
17. THE PAYPAL CASE-STUDY existing Java stack
18. THE PAYPAL CASE-STUDY Java and Node in parallel
19. THE PAYPAL CASE-STUDY One Language to Rule them all
20. THE PAYPAL CASE-STUDY Now all new apps at PayPal are written in Node.
21. THE PAYPAL CASE-STUDY - Headcount: from ⅓ to 1/10 - Performance: 10x throughput in scale - Lines of code: code size shrink by factor of 3-5
22. HOW?
24. NPM - open repository for Node modules - proper SemVer - more than 100.000 modules - open source all the things!
25. NPM Would be nice to use all this in the browser as well?
27. BROWSERIFY - require('modules') in the browser - bundling up all of your dependencies from the node_modules dir - does not pollute the global scope http://blog.risingstack.com/publishing-your-first-browserify-node-module/
28. BROWSERIFY // main.js var $ = require('jquery'); $('body').append('<p>Hello Browserify!</p>'); npm install jquery --save browserify main.js -o bundle.js
29. Which brings us to...
30. ISOMORPHIC JAVASCRIPT http://blog.risingstack.com/from-angularjs-to-react-the-isomorphic-way/
31. Thanks! Gergely Nemeth @nthgergo