JSFiddle - React, Tailwind, and code Playground

HTML

<div id="divd">First</div>
<button onclick='changeMe()'>Click It</button>

CSS

div {
    border: 1px solid #ccc;
}

JavaScript

function changeMe() {
    var div = document.getElementById('divd').innerHTML;
    if (div === 'First') {
        document.getElementById('divd').innerHTML = "Second";
    } else {
        document.getElementById('divd').innerHTML = "First";
    }
}