JSFiddle - React, Tailwind, and code Playground

HTML

<input id="myButton" type="button" value="Test"></input>

JavaScript

document.getElementById("myButton").onclick=function(){showAlert()};

function showAlert() {
    alert('thanks the content has been submitted for review');
    
    setTimeout(function() {
        // DO OTHER STUFF
    },5000);   // 5 secon
}