Facebook curiosity, what javascript framework are they using?

Question

Hi guys,

wondering if some of you know what javascript framework facebook is using ?

Thanks

Answer 1

Looks like they're using their own as there aren't any YUI/jQuery script references and it looks like standard DOM scripting.

Answer 2

I have asked myself that question before. It is very hard to tell though, because they have everything obfuscated. Who knows what they are doing? It is their private property, their servers are private from the world.

I do know some things. They have polluted the global name space a lot with modules that don't start with dojo, YAHOO, or jQuery.

Apparently they have their own JavaScript library called FBJS, however, I don't know the extent of their use of it in their own site.

http://wiki.developers.facebook.com/index.php/FBJS

Answer 3

Its anyones guess.

First of all, their core services are based on Thrift which Facebook has made opensource; also, they have their own library based on JavaScript. They are probably incorporating a lot of standard DOM scripting (but obfuscated) code in and above the user-space.

Based upon presentations you can get a feel of their organizational layout and how they might implement a lot of their functionality.

There was a leak circa 2007 of the source code if you can find it, if it is still present, but of course: this is the internet.

We might actually get our hands on current source should Facebook comply with their court order.