$(selectElement).val() will return nothing after a form reset in IE

[vortfu]

In Internet Explorer, calling val() on a select element (where type = select-one and none of the child option elements being explicitly defined as being selected) after a form reset will result in an empty value being returned instead of the value of the default/first option.

The problem appears to be that IE will set selectElement.selectedIndex correctly, but not set selectElement.options[selectElement.selectedIndex].selected after a reset.

A suggested patch which fixes this issue would be to check against selectedIndex instead of just option.selected if type == 'select-one'

ie:

src/attributes.js ~line 85

Loop through all the selected options for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {

var option = options[ i ];

if ( option.selected

( one && index == i ) ) {

Get the specifc value for the option value = jQuery(option).val();

We don't need an array for one selects if ( one ) {

return value;

}

Multi-Selects return an array values.push( value );

}

}

demo file attached.

[addyosmani]

Tested the above bug in both IE6, IE8 and IE9. The behaviour is that as mentioned IE fails to return the correct value of the default/first item in the select after a form reset, instead returning an empty string.

Recommending a review and patch.

[snover]

Resetting milestone to future.