JSFiddle - React, Tailwind, and code Playground

by Roko

HTML

<h2>Welcome <span id="name"></span>!</h2>

JavaScript

// Persistent Prompt modal
var userName;
while(!userName) {
  userName = prompt("Enter your name", "");
  if(!userName) {
    alert("Please we need your name");
  } else {
    document.getElementById("name").innerHTML = userName;
  }
}