:disabled Selector

disabled ( ) version added: 1.0

Description: Selects all elements that are disabled.

As with other pseudo-class selectors (those that begin with a ":"), it is recommended to precede it with a tag name or some other selector; otherwise, the universal selector ("*") is implied. In other words, the bare $(':disabled') is equivalent to $('*:disabled'), so $('input:disabled') or similar should be used instead.

Although their resulting selections are usually the same, the :disabled selector is subtly different from the [disabled] attribute selector; :disabled checks the boolean (true/false) value of the element's disabled property while [disabled] checks for the existence of the disabled attribute.

The :disabled selector should only be used for selecting HTML elements that support the disabled attribute (<button>, <input>, <optgroup>, <option>, <select>, and <textarea>).

Examples:

Example: Finds all input elements that are disabled. 

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>css demo</title>

  <script src="//code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
  

<form>
  <input name="email" disabled="disabled">
  <input name="id">
</form>

<script>

$( "input:disabled" ).val( "this is it" );

</script>

  
</body>
</html>

Demo: