For key or mouse events, this property indicates the specific key or button that was pressed.

Contains flags for the useragent, read from navigator.userAgent. We recommend against using this property; please try to use feature detection instead (see jQuery.support). jQuery.browser may be moved to a plugin in a future release of jQuery.

Sorts an array of DOM elements, in place, with the duplicates removed. Note that this only works on arrays of DOM elements, not strings or numbers.