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david.rou..

"Attribute Equals Selector" Issue In Firefox

in Using jQuery • 11 years ago

Hi all,

I'm trying to retrieve the number of "option" elements with the "selected" attribute set to true from a "select" control in the DOM. To ease my debugging I'm using the "alert" javascript tool to display the number of such options. Here is the javascript code :

alert($('#possible_rarities > option[selected="true"]').length);

"possible_rarities" is the identifier of the "select" control in the DOM. Before launching the display, I have selected an option and checked that the "selected" attribute was set to true via Firebug. But the resut display is 0 after executing the script in Firefox. I do not meet this problem when running my script in IE.

For information, I use the version 1.4.2 of jQuery.

Does anyone have a solution ?

Replies(4)

charlietfl

Re: "Attribute Equals Selector" Issue In Firefox

11 years ago

I've never looked deep into selected but different browsers are likely handling "selected" differently.

to set in jQuery for example you can use $(selector).attr('selected','selected')

Try using the ":selected" selector

http://api.jquery.com/selected-selector/

david.rou..

Re: "Attribute Equals Selector" Issue In Firefox

11 years ago

Thanks for your answer, I will try it this evening.

But I do not think that my problem only concerns the "selected" attribute because I also met problems to select "option" elements containing a specified text by using a syntax similar to the following :

alert($('#possible_rarities > option[text="xxx"]').length);

I will perform some tests on other attributes.

charlietfl

Re: "Attribute Equals Selector" Issue In Firefox

11 years ago

there is no attribute method "text" , make the jQuery API your friend, in "selectors" section there is a sub category for forms which would guide you to the ":selected" selector I mentioned

for text, look at ":contains", or contains()

david.rou..

Re: "Attribute Equals Selector" Issue In Firefox

11 years ago

I am not sure that "text" is not considered as an attribute for two reasons :

First, when I check an "option" element in the DOM via Firebug there is a "text" attribute.
In addition, $('#possible_rarities > option[text="xxx"]').length is correct in IE.

I finally used the ":contains" selector because I did not find other solutions. Do not worry I have become quite familiar with the jQuery API.

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