Just to clarify then, since jQuery already covers cases 2-4 as you're
expecting it to and case #1 currently fails - and that case is
decidedly not what this thread discussion started as.
> Consider the following cases:
>
> #1)
> <select id="x">
> <option value="1">Dummy</option>
> <option value="">Empty</option>
> </select>
>
> $('#x').val('')
> should select the second option.
Agreed.
> #2)
> <select id="x">
> <option value="x">z</option>
> <option value="y">x</option>
> </select>
>
> $('#x').val('x')
> should select the first option only.
Yep, as it does in 1.4.
> #3)
> <select id="x">
> <option value="x">y</option>
> <option>y</option>
> </select>
>
> $('#x').val('y')
> should select the second option only.
Yep, as it does in 1.4.
> #4)
> <select multiple id="x">
> <option value="x">z</option>
> <option value="y">x</option>
> </select>
>
> $('#x').val('x')
> should select the first option only, IMO. It's kind of ambiguous and
> jQuery should define what it wants to do.
Yep, as it does in 1.4. In fact, 1.4 removes the ambiguity completely
by only using the value with the val method, which is much better. To
Devon: The change was very much intentional, as it was the case was
far too ambiguous and it was causing other problems to pop up. A very
explicit note will be made in the 1.4 release notes concerning this
change.
Revisiting the logic for getting the select val it looks like the ||
this.text was a holdover from trying to fix an IE 6 bug: If you don't
specify a value it'll supply "" as the value instead of the option
text. I've re-worked the logic to work uniformly in all browsers.
Filed and fixed: http://dev.jquery.com/ticket/5697
I also went through the logic for .val() on checkboxes and radios -
the revised logic there definitely didn't make sense, especially since
this.value will never be empty (not specifying a value will just
result in a value of "on" - and specifying an empty value is a case we
want to hit).
Filed and fixed: http://dev.jquery.com/ticket/5698
Of course, it would be easy if that was the case but Webkit returns ""
if you don't specify a value attribute, instead of "on".
Filed and fixed: http://dev.jquery.com/ticket/5699
--John
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