JSFiddle - React, Tailwind, and code Playground

HTML

<select name="sweets" size=3>
    <option>Chocolate</option>
    <option selected="selected">Candy</option>
 
    <option>Taffy</option>
    <option selected="selected">Caramel</option>
    <option>Fudge</option>
    <option>Cookie</option>
 
  </select>
  <span></span>

JavaScript

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