JSFiddle - React, Tailwind, and code Playground

HTML

<form id="selectform">
    <select id="selectelement">
        <option selected="selected">Option One</option>
        <option >Option Two</option>
    </select>
</form>

JavaScript

window.onload=function() {
  document.getElementById('selectelement').onchange=function() {
    if(confirm('do you haz teh codz?'))
      document.getElementById('selectform').submit();
    else
      return false;
    return true;
  }
}