jQuery.ajax()
Perform an asynchronous HTTP (Ajax) request.
Aspects of the API that were changed in the corresponding version of jQuery. API changes in jQuery 1.5.1 dealt primarily with jQuery.ajax settings and jQuery.support properties.
Perform an asynchronous HTTP (Ajax) request.
A collection of properties that represent the presence of different browser features or bugs. Primarily intended for jQuery’s internal use; specific properties may be removed when they are no longer needed internally to improve page startup performance.