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This Week in Web – JS Videos, Mozilla, Titanium Docs, ExtSJS, django-rules

This Week in Web – JS Videos, Mozilla, Titanium Docs, ExtSJS, django-rules

Day of JS

On 27th January 2011 a conference was held at Google HQ which covered the state of Javascript both on the web and mobile platform. Six talks between 40 and 60 minutes in length were given by Javascript community leaders such as Ben Galbraith, Dion Almar, Yehuda Katz and Kevin Whinnery. MJG (the sponsor of the conference) recorded those talks and has uploaded them in high quality video format. If you have an interest in jQuery Mobile, Titanium Mobile, SproutCore, Sencha Touch or Javascript on the web in general, I highly recommend you watch these videos.

Mozilla’s JS Plans for 2011

David Mandelin, a developer at Mozilla, has written a blog post titled Mozilla Javascript 2011. In it he discusses the features and enhancements planned this year for Mozilla’s Javascript engine. These include a new debugging API (which will allow for remote debugging), performance enhancements to the garbage collector, type inference for TraceMonkey and a new JIT compiler called IonMonkey. Mandelin does a really good job at explaining each of these enhancements in simple terms (without the lingo). I personally learned alot by reading it.

ExtJS 4.0 Released

Sencha have released version 4 of their ExtJS Javascript framework. This release comes with plenty of example code which will help you get up and running quickly. Be sure to read the release notes. Some of the new features in ExtJS4 are:

  • Class system
  • Better testing, over 4000 unit tests
  • MVC application architecture
  • Faster and more modular Grid, Data and Layout widgets
  • New Charting widget

Download it here.


django-rules is a Django authorization backend that offers a unified, per-object authorization management. It is quite different from other authorization backends in the way it lets you flexibly manage per-object permissions.

In django-rules every rule adds an authorization constraint to a given model. The authorization constraint will check if the given user complies with the constraint (e.g. if the user has the right permissions to execute a certain action over an object, etc.). The authorization constraint can be a boolean attribute, property or method of the model, whichever you prefer for each rule :)


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Posted Kwiecień 29th, 2011 in WEB and PHP Development.

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