How to combine two jQuery results

Question

How do you combine two jQuery search results? eg:

var $allFoos = $('.foo'),
    $allBars = $('.bar')
    $allFoosAndBars = $allFoos + $allBars
;

Obviously, I just made up that last line, but I hope it makes it sorta clear what I mean. To be clear, the example is greatly simplified, and it could be any arbitrary sets i'm talking about, so $('.foo, .bar') is not what I'm after.

Answer 1

UPDATE: (Ignore the first half; It's wrong)

 var $allFoosAndBars = $allFoos.Append($allBars);

Also, though you said you didn't want it, a variation would is workable:

var $Foos = '.foo', $Bars = '.bar', $allFoosAndBars = $($Foo +", "+$Bars);

Answer 2

You can use add();

var $all = $('.foo');

$all.add('.bar');

or

var $allFoosAndBars = $allFoos.add($allBars);