jquery document.ready multiple declaration

Question

I realized that I can specify $(document).ready(function(){}); more than once.
Suppose like this

$(document).ready(function(){
    var abc = "1122";
    //do something..
});

$(document).ready(function(){
    var abc = "def";
    //do something..
});

1. Is this standard ? Those codes work on my FF (16.0.2). I just a little afraid that other browser may not.
2. What actually happen ? How jQuery handle those code ?

Thanks.

Answer 1

Yes, it's standard and recommended and jQuery guarantees those functions will be executed in order of declaration (see this related answer for details regarding the implementation).

The abc variable are local to your functions and don't interfere. You cannot see the value of abc declared in one of the callbacks from the other one.