JSFiddle - React, Tailwind, and code Playground

HTML

<form id="myform">
<h2>Add a User:</h2>
<input id="username" type="text" name="username" placeholder="name">
<input id="email" type="email" name="email" placeholder="email">
 <button onclick='return addUser();' type="submit">add user</button>
</form>


<h2>UsersList:</h2>
<ul id="users"></ul>

JavaScript

function addUser(){
    var list = document.getElementById('users');
var username =document.getElementById('username').value;
var email = document.getElementById('email').value;
var entry = document.createElement('li');
entry.appendChild(document.createTextNode(username + ' ' + email));
list.appendChild(entry);
    return false;
}