JSFiddle - React, Tailwind, and code Playground

HTML

<select id="scelta">
    <option value="">scegli...</option>
  <option value="paperino">paperino</option>
  <option value="pluto">pluto</option>
</select>

<ul>
    <li class="scriviQui"></li>
</ul>

JavaScript

$('#scelta').change(function(){
    $('.scriviQui').html( $('#scelta').val());
});