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Firebug 2 (released today!) uses number of internal architectural concepts that help to implement new features as well as effectively maintain the code base.

Using transparent architecture and well known design patterns has always been one of the key strategies of the (relatively small) Firebug team that allows us maintain rather large set of features in Firebug.

This post describes the way how Firebug deals with JavaScript object representation and the concept ensuring that an object is always rendered the same way across entire Firebug UI.

  • Firebug 2.0 is compatible with Firefox 30 - 32

 

See also list of new features in Firebug 2

Firebug Internals I.

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One of the achievements of Firebug 2 alpha 1 release has been adoption of new JSD2 API and this task required significant changes and improvements in our code base. Among other things, we have also introduced a new concept that allows to nicely build asynchronously updated UI.

There are other concepts in Firebug 2 and this version is with no doubt the best one we have released. Try it and let us know how it works for you (Firefox 30+ needed).

In order to implement remote access to the server side debugger API, Firebug UI needs to know how to deal with asynchronous update. We applied Viewer Provider pattern and extended it with support for asynchronous data processing.

If you like using Document View, Model View Controller or similar design patterns to build your code base, you'll probably like Viewer Provider too.

So, follow this post if you are interested to know what Viewer Provider looks like.

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