John -
Thank you, that worked! Part of what confused me was that index() is
defined as having an Obj as the argument, but not what kind - my
attempts at using an expression as an argument were failing, so I was
running out of ideas. I wasn't following context properly.
Have enjoyed working with jQuery lately, nice update.
-- mike
John Resig wrote:
> .index() doesn't do what you think it does. It works like this:
>
> // Find the position of the P that an ID of someP /within/ the list of
> p elements.
> $("p").index( $("#someP")[0] )
>
> So, in your code it would be something like this:
>
> // div i want to find
> id = 3;
>
> // get the element i want to move
> var curr_obj = $("[EMAIL PROTECTED]'id[]'[EMAIL
> PROTECTED]'"+id+"']").parent()[0];
>
> // determine its current location within the set of list_items
> var old_pos = $("div.list_item").index(curr_obj);
>
> So two things to note: .get() returns an array of elements, not just a
> single element and .index() works over a list of elements, not the
> children of an element. I hope this makes sense, it is something of
> confusing method. I plan on polishing it up some, as it was a late
> addition to 1.0.
>
> --John
>
> On 10/17/06, Michael Crowl <[EMAIL PROTECTED]> wrote:
>
>> .index() is driving me nuts, and I'm trying to figure out if there's an
>> obvious solution to what I'm trying to do, or if I'm missing something
>> in the API.
>>
>> Let's say I have the following:
>>
>> <div name="list">
>>
>> <div class='list_item'>
>> <input type='hidden' name='id[]' value='1'>
>> // interface
>> </div>
>>
>> <div class='list_item'>
>> <input type='hidden' name='id[]' value='2'>
>> // interface
>> </div>
>>
>> <div class='list_item'>
>> <input type='hidden' name='id[]' value='3'>
>> // interface
>> </div>
>>
>> <div class='list_item'>
>> <input type='hidden' name='id[]' value='4'>
>> // interface
>> </div>
>>
>> </div>
>>
>> How do I determine the current element position of a particular
>> list_item in that container, using jQuery?
>>
>> Using .index(), it seems like this should work:
>>
>> // div i want to find
>> id = 3;
>> // get the element i want to move
>> var curr_obj = $("[EMAIL PROTECTED]'id[]'[EMAIL
>> PROTECTED]'"+id+"']").parent().get();
>> // determine its current location within the set of list_items
>> var old_pos = $("#list").index(curr_obj);
>>
>> ...or a number of other combinations I've tried, and none of them can
>> get anything but -1 from .index().
>>
>> What am I doing wrong here?
>> - Does .get() really return an element object? (It seems to.)
>> - What kind of object is .index() looking for?
>>
>
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