JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
<input type="hidden" name="pulsanteSubmit">
<input type="button" id="refreshDatiProtocollo">
<input type="hidden" id="numRecStorici" name="numRecStorici" value="4" class=" disabled">
<input type="text" id="UtenteScrittura" name="UtenteScrittura" size="20" value="paolo" readonly="true">
<input type="text" id="Timestamp" name="Timestamp" size="20" value="18/01/2011 19:59:08" class="dateITA" readonly="">
<input type="text" id="Timestamp" name="Timestamp2" size="20" value="18/01/2011 19:59:08" class="dateITA" readonly>
<input type="hidden" id="IDProtocollo" name="IDProtocollo" value="65060" class=" disabled">
<input type="hidden" id="IDRegistroClassificatore" name="IDRegistroClassificatore" value="1" class=" disabled">
<input type="hidden" id="AnnoClassificatore" name="AnnoClassificatore" value="2010" class=" disabled">
<input type="text" id="Protocollo" name="Protocollo" size="12" value="999" class="digits">

JavaScript

// Example: 
// - 10 inputs
// - 3 readonly inputs
// - ERROR: in the not selector only 1 read only input excluded
console.log($(':input').length); // 10 inputs ok
console.log($('[readonly]').length); // OK
console.log($(':input:not([readonly])').length); // ERROR
console.log($(':input').not('[readonly]').length); // ERROR

// Revealed by not():
//  - readonly="true"
// BUG: not revealed:
//  - readonly
//  - readonly=""