JSFiddle - React, Tailwind, and code Playground

HTML

<select>
  <option accesskey="A" value="Alaska">Alaska</option>
  <option accesskey="B" value="Baked" >Baked</option>
</select>

<div id="output1"></div>
<div id="output2"></div>

CSS

div {height: 1.5em; border: 1px solid black;}

JavaScript

var sel= document.querySelector('select'), 
    n = 0;

sel.focus();

setInterval(function() {
  document.querySelector('#output1').innerHTML= sel.value;
},500);

sel.addEventListener('change', function() {
  document.querySelector('#output2').innerHTML= (n++)+' '+sel.value;
});