http://2009.full-frontal.org/

Christian Heilmann

Frontloaded and zipped up - do loose types sink ships?

1. JavaScript gets the blame for server-side security issues

2. Improve security with Caja – subset of JavaScript

3. YQL – JavaScript ‘SQL’ to access data via Web Services

http://www.wait-till-i.com/2009/11/21/frontloaded-and-zipped-up-the-full-frontal-2009-keynote/

select farm,id,secret,owner.realname,server,title,urls.url.content from flickr.photos.info where photo_id in( select id from flickr.photos.search where woe_id in( select woeid from geo.places where text="london" ) )

Robert Nyman

Javascript from birth to closure

1. JavaScript has nothing to do with Java (no, really?)

2. Lots of slides of stuff we know…

3. Odditiestypeof(NaN) == number

4. Usefulshash[‘val’] == hash.val

Peter-Paul Koch

W3C Widgets

1. Many, many mobile browsers – many on Web Toolkit, but not Blackberry or iPhone!

2. They all have quirks

3. W3C Widgets are local applications written in HTML, CSS, and JavaScript

4. They cannot access phone data – geo data, address book, etc.

http://www.quirksmode.org/http://www.quirksmode.org/presentations/mobilebrowsers/fullfrontal09.pdf

Stuart Langridge

New things that HTML5 provides for JavaScript Hackers

1. No slides – forgotten most of what he said…

2. Main thrust – selectors being implemented in many new browsers, but different support and syntax in each browser!

3. Libraries will take advantage of these new features, so keep using your favourite library (e.g. jQuery 1.3.2 uses new Sizzle selector engine)

Todd Kloots

More accessible user interfaces with Aria

1. Most browsers now support screen readers for the visually impaired

2. ARIA provdes roles (menu), properties (hasPopUpMenu) and states(enabled)

3. Keyboard accessibility (e.g. home media center)

4. Discoverability

Jake Archibald

Optimising where it hurts

http://www.jakearchibald.co.uk/jsperformance/

1. Optimisations can make no difference (e.g. bitwise v slice)

2. eval() is usually bad for performance

3. Scope all vars

4. Creating DOM elements; create html as string, then insert

5. Use selectors correctly:$(‘div#id’) v $(‘#id’)

$(‘.class’) v $(‘#div .class’)

$(‘:header’)

Simon Wilson

Web API mischief with Javascript

Simon Wilson

Server-side JavaScript: Event-driven web serving

http://simonwillison.net/2009/Nov/23/node/

1. Something genuinely new and exciting

2. JavaScript is ideally suited to event-driven programming:

1. Event handlers

2. Callbacks

Standard Web Servers

Event Driven Web Servers

Clean, Easy Comet

AJAX call with long poll (10s)

Reply?

ProcessReturn Data

Server

Wait

Yes

No

Node.js

1. Small, simple

2. Lightning fast, highly efficient

3. But:1. Untested scalability

2. Very new not available at hosting companies

Worth a punt?

http://nodejs.org/http://wiki.github.com/ry/node

Conclusions

1. A JavaScript conference in in the UK! Over 100 delegates Completely sold out

2. Exciting new developments as browsers implement new features

3. Libraries the best way to future-proof at the moment

4. Mobile is a minefield

5. IE6 now down to about 35% of users

6. Book early for next year

http://2009.full-frontal.org/