JSFiddle - React, Tailwind, and code Playground

HTML

<select name="sweets" >
  <option>Chocolate</option>
  <option>Candy</option>
  <option>Taffy</option>
  <option>Caramel</option>
  <option>Fudge</option>
  <option>Cookie</option>
</select>
<div>Texte qui va s'effacer si tu change</div>

JavaScript

$( "select" )
  .change(function () {
    var str = "";
    $( "select option:selected" ).each(function() {
      $( "div" ).text( "" );
    });
    
  })