Hi Ricardo
Yeah, its a DOM element to be more specific I'm working with a lot of
IMG elements.
I need to identify them uniquely, (because sometimes the image is
repeated, but I need to manage them as different objects), so when I
read the documentation for jQuery.data() I (maybe mis-)understand that
it will create a Unique id for an element, and its sort of true BUT
don't you dare to use removeData() for that element because if you
remove all the data attached with jQuery(elem).data('key','value') you
will get rid of the unique-id for the element too. Does that make
sense?
On 16 dic, 10:33, Ricardo Tomasi <ricardob...@gmail.com> wrote:
> You can keep your own unique identifier anywhere you want, for data()
> the identifier is the element itself. If you care to explain a bit
> more of what you're trying to achieve someone might come up with an
> useful suggestion. What did 'elem' refer to in your original script
> for example? A DOM element?
>
> - ricardo
>
> On Dec 16, 6:46 am, ricardoe <ricar...@gmail.com> wrote:
>
> > Well, solved issue:
>
> > Don't trust jQuery.data(element) if you're pretending to use gQuery
> > (element).data('only-data-element','something')!!!!
> > When you use gQuery(element).removeData('only-data-element') the
> > jQuery.cache for that element will be deleted.
> > This leads that when you do again jQuery.data(element) you WONT have
> > the expected ID, it will create a new one.
>
> > Why?! I dunno. But I'll not file a ticket cause "most of people
> > doesn't use it that way"...... lame.
>
> > On Dec 16, 1:39 am, ricardoe <ricar...@gmail.com> wrote:
>
> > > Hi,
>
> > > Does anyone knows why this:
>
> > > var id = elem[ expando ];
> > > // Compute a unique ID for the element
> > > if ( !id ) {
> > > id = elem[expando] = ++uuid;
> > > }
>
> > > Could be being broken? I mean, on a test page I made the elem[expando]
> > > property is not being "saved".
> > > I'll explain, the first time I do jQuery.data(element) I get a number
> > > lets say: 10.
> > > Then if I do again the same (with the exactly same element) I get: 14.
>
> > > I'm using this to identify elements so its not working as expected,
> > > anyone have theories about this?
