JSFiddle - React, Tailwind, and code Playground

HTML

<button>Button1</button>
<select><<option>1</option><option>1</option></select>

JavaScript

var $btn = $('button').prop('disabled', true);
console.log( $btn.is(':disabled') );

var $sel = $('select').prop('disabled', true);
console.log( $sel.is(':disabled') );

var $sel = $('select').removeProp('disabled');
console.log( $sel.is(':disabled') );

var $sel = $('select').prop('disabled', true);
console.log( $sel.is(':disabled') );