jQuery extension to grab all data from a element

jquery.data.js

/** 

  This is stolen from jQueryUI 1.9 but works well by itself, it will add a Pseudo selector to select all data from a element
  usage is 
  
  var data = $(".selector:data()");
  console.log(data);
*/

$.extend( $.expr[ ":" ], {
data: $.expr.createPseudo ?
$.expr.createPseudo(function( dataName ) {
return function( elem ) {
return !!$.data( elem, dataName );
};
}) :
// support: jQuery <1.8
function( elem, i, match ) {
return !!$.data( elem, match[ 3 ] );
},

});
$("body:data()");