jQuery API Documentation

jQuery.boxModel

States if the current page, in the user’s browser, is being rendered using the W3C CSS Box Model.

Also in: Properties > Properties of the Global jQuery Object | Removed | Utilities

jQuery.browser

Contains flags for the useragent, read from navigator.userAgent. This property was removed in jQuery 1.9 and is available only through the jQuery.migrate plugin. Please try to use feature detection instead.