Jquery condition check is(':hover') not working

Question

$(\'.xx\').mouseenter(function(){
  if($(this).is(\':hover\'))
    alert(\'d\');
  else
     alert(\'f\');
});

Here is my code, it should alert \'d

Answer 1

function idIsHovered(id){
    return $("#" + id + ":hover").length > 0;
}

http://jsfiddle.net/mathheadinclouds/V342R/