JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test"></div>

JavaScript

var id_box = document.createElement('input');
id_box.id = 'id_box'
id_box.type = 'text';
id_box.onchange = function()
{
    alert("Changed!");
}

var a = document.createElement('a');
a.innerHTML = "A";
a.onclick = function()
{
    document.getElementById('id_box').value = 'A';
}

document.getElementById("test").appendChild(id_box);
document.getElementById("test").appendChild(a);