Bug Tracker

Opened 8 years ago

Closed 6 years ago

#3622 closed bug (invalid)

Bug with CSS Selector E[foo] on Option elements

Reported by: djvirgen Owned by:
Priority: minor Milestone: 1.3
Component: selector Version: 1.2.6
Keywords: Cc: djvirgen, flesler
Blocked by: Blocking:

Description

HTML:

<select id="theSelect">

<option>Select a color</option> <option value="blue">Blue</option> <option value="red">Red</option>

</select>

Given the above HTML, the following CSS selector incorrectly returns all 3 options:

$('#theSelect option[value]').length; 3

While the first option would submit a value when the form is submitted, it technically does not have a value attribute.

According to the W3C spec [1], the selector E[foo] should return E elements that contain a foo attribute.

http://www.w3.org/TR/css3-selectors/#selectors

Change History (4)

comment:1 Changed 8 years ago by flesler

  • Cc djvirgen flesler added

Can you try with this version of jQuery ?

comment:2 Changed 8 years ago by djvirgen

I have just tested it with the nightly build, and it is still reporting an incorrect number of matched elements.

Test code:

console.log('Number of options with a "value" attribute: ' + $('option[value]').length); incorrectly reports 3

HTML:

<select name="test">

<option>No Value Attribute</option> <option value="foo">Foo</option> <option value="bar">Bar</option>

</select>

comment:3 Changed 7 years ago by balazs.endresz

var el = $('<select><option>text</option></select>').find('option')[0];

el.value;                 //returns "text"

el.getAttribute('value'); //returns: null

In both 1.2.6 and 1.3b2 first the element's property is checked, which returns "text" instead of undefined even if there isn't a value attribute, so there won't be any further checks with getAttribute. Otherwise using .val() would return "text" on the element but you wouldn't be able to select it with the attribute filter.

comment:4 Changed 6 years ago by dmethvin

  • Resolution set to invalid
  • Status changed from new to closed

http://jsfiddle.net/dmethvin/BQQQx/

As balazs.endresz said, this is expected behavior. If jQuery didn't match against the value *property* then the selector would only match the initial value attribute.

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