JSFiddle - React, Tailwind, and code Playground

HTML

<select name="" onchange="myFunction(event)">
    <option disabled selected>Choose Database Type</option>
    <option value="Green">green</option>
    <option value="Red">red</option>
    <option value="Orange">orange</option>
    <option value="Black">black</option>
</select>

<input id="myText" type="text" value="colors">

JavaScript

function myFunction(e) {
    document.getElementById("myText").value = e.target.value
}