If all you need to do is distinguish a string from a jQuery object, and you
want to insure that future revisions of jQuery will never break your code, I
would just test for the string.
I'd also put the logic in a function even if you only use it in one place,
e.g.
// Return a jQuery object given either a string id or
// an existing jQuery object or DOM element
function $fromID( id ) {
if( typeof id == 'string' ) id = '#' + id;
return $(id);
}
And then code:
var $form = $fromID(form);
-Mike
> From: Eridius
>
> I am wondering what is the safest way to test if a variable
> is a jQuery object. I am building a function where I want to
> be able to pass in either the id of the form or the form
> object itself. The current way I am doing this is
>
> var $form = (form instanceof jQuery ? form : $('#' + form));
>
> Is this the safest way that is not likely to change? Would I
> be better offer wrapping this functionality into a function
> all by itself so incase this does change, I only need it to
> change in one spot (plan on building a complete UI type framework)?
>
