JSFiddle - React, Tailwind, and code Playground

by acdcjunior

HTML

<select id='select'>
  <option value='one' >One</option>
   <option value='two' selected="selected">Two</option>
  <option value='three'>Three</option>
</select>
<br />
<br />
<input type="button" value="Select Three" onclick="selectThree()" />
<input type="button" value="Select Default" onclick="selectDefault()" />

JavaScript

function selectThree() {
    var mySelect = document.getElementById("select");
    mySelect.value = 'three';
}
function selectDefault() {
    var mySelect = document.getElementById("select");
    for (var i = 0; i < mySelect.options.length; i++) { 
        if (mySelect.options[i].defaultSelected) {
            mySelect.selectedIndex = i;
            break;
        }
    } 
}