borisyankov/DefinitelyTyped — pull request #146 by k00ni (2012-12-30 10:20:34+00:00)
Title: Set options in ajaxSetup(options: any) optional, to allow use it as a get function

Sometimes its useful or necessary to remember old ajaxSetup object, for instance to restore its values later. But the missing ? in options disallow using ajaxSetup without parameter.

I changed it, because i had the same problem as this guy [here](http://stackoverflow.com/questions/11860354/how-to-get-a-current-value-from-jquerys-ajaxsetup).