Facebook curiosity, what javascript framework are they using?

Question

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

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.

Answer 3

There is also "Javelin", as revealed at the open sourcing of PHAbricator, a internal tool made to control source code internally (git viewer) + tasks and other things.

Here is the documentation: http://phabricator.com/docs/javelin/index.html

You can also look for the source (by accessing phabricator) and take a look of some particularities of how facebook develop their applications.