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The option to be added is created like a normal HTML string. The select box is selected with the jQuery selector and this option is added with the append() method. The append() method inserts the specified content as the last child of the jQuery collection.
HTML <option> data-* AttributeA data-* attribute on an <option> tag attaches additional data to the option item. To create a custom attribute, replace * with a lowercase string, such as data-id , data-status , or data-location .
You can use . attr("data-lala",val) to create an attribute on an element, or . data("lala",val) if you dont mind if that information stays hidden in the DOM (an inspect may not show the right value).
When present, it specifies that multiple options can be selected at once. Selecting multiple options vary in different operating systems and browsers: For windows: Hold down the control (ctrl) button to select multiple options. For Mac: Hold down the command button to select multiple options.
HTML Markup
<select id="select">
<option value="1" data-foo="dogs">this</option>
<option value="2" data-foo="cats">that</option>
<option value="3" data-foo="gerbils">other</option>
</select>
Code
// JavaScript using jQuery
$(function(){
$('select').change(function(){
var selected = $(this).find('option:selected');
var extra = selected.data('foo');
...
});
});
// Plain old JavaScript
var sel = document.getElementById('select');
var selected = sel.options[sel.selectedIndex];
var extra = selected.getAttribute('data-foo');
See this as a working sample using jQuery here: http://jsfiddle.net/GsdCj/1/
See this as a working sample using plain JavaScript here: http://jsfiddle.net/GsdCj/2/
By using data attributes from HTML5 you can add extra data to elements in a syntactically-valid manner that is also easily accessible from jQuery.
To me, it sounds like you want to create a new attribute? Do you want
<option value="2" value2="somethingElse">...
To do this, you can do
$(your selector).attr('value2', 'the value');
And then to retrieve it, you can use
$(your selector).attr('value2')
It's not going to be valid code, but I guess it does the job.
I made two examples from what I think your question might be:
http://jsfiddle.net/grdn4/
Check this out for storing additional values. It uses data attributes to store the other value:
http://jsfiddle.net/27qJP/1/
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