Question

How can you make input[disabled=true] work in jQuery?

http://jsfiddle.net/Bps9U/

Answer 1

disabled is a boolean attribute, and as such has only two states: Set and not set.

The following are all equal:

<input disabled="true">
<input disabled="disabled" />
<input disabled>
<input disabled="">

You can match all variants with $("input[disabled]").

With jQuery, you can get the state of an element with $(...).prop('disabled'), which will return a boolean.