I have a bunch of checkboxes on a page, and I only show a subset of those checkboxes at a time.

I then perform some action which loops through all of the checkboxes and sees if they are checked or not:

e.g.

$(".delete_items").click( function() {
     $('.checkboxes' ).each(function(){
     //do stuff
     }
}

Then I was thinking, well since the user can never interact with the hidden checkboxes, that adding :visible to checkboxes would speed up the loop

e.g.

$(".delete_items").click( function() {
     $('.checkboxes :visible' ).each(function(){
     //do stuff
     }
}

But I don't know if adding :visible adds more overhead. Any thoughts?