JSFiddle - React, Tailwind, and code Playground

HTML

<select id="select">
    <option>One</option>
    <option>Two</option>
    <option>Three</option>
</select>

JavaScript

var select = document.querySelector('#select');

select.addEventListener('change', function (e) {
    var selectedOption = this.options[this.selectedIndex];
    
    console.log(selectedOption.value);
});