JSFiddle - React, Tailwind, and code Playground
by jrunning
HTML
<select name="marked" id="marked">
<option value="">SELECT</option>
<option value="all">ALL</option>
<option value="none">NONE</option>
<option value="read">READ</option>
<option value="unread">UNREAD</option>
</select>
JavaScript
function checkdata(evt) {
console.log(this.value);
}
document.getElementById('marked').addEventListener('change', checkdata);