If you didn't know the length beforehand something like this would
work:
var sel = "#field1, #field2, #field3";
if($(sel).length == sel.split(',').length){
...
}
A plugin or custom selector may be able to simplify it more.
On Feb 8, 10:35 pm, Dave Methvin <[email protected]> wrote:
> > $("#field1 & #field2").length would be either 0 or 2, but never 1.
>
> How about a plugin? These are short enough they could be added to the
> core.
>
> $("#field1").and("#field2").length
>
> // If elements are selected in this jQuery object,
> // add sel to that; else empty the object.
> jQuery.fn.and = function(sel){
> return this.length? this.add(sel) : this.pushStack([]);
> };
>
> // If no elements are selected in this jQuery object, use
> // the ones selected by sel; else use the current ones.
> jQuery.fn.or = function(sel){
> return this.pushStack( this.length? this : sel );
> };
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