JSFiddle - React, Tailwind, and code Playground

HTML

<button>Clone</button>
<select class="variable_priority"><option>0</option><option>1</option></select>

JavaScript

$(document).on('change', '.variable_priority', function() {
    alert('Select change');
});

$('button').click(function(){
    $('select').first().clone().appendTo('body'); 
});