JSFiddle - React, Tailwind, and code Playground

HTML

<output id=o1></output>
<br>
<button id=button1>Click or touch me</button>
<br>
<output id=o2></output>

JavaScript

var o1 = document.getElementById("o1");
var o2 = document.getElementById("o2");

o1.innerHTML += "'ontouchstart' in window : ";
o1.innerHTML += 'ontouchstart' in window;

button1.addEventListener("click", function(){
  o2.innerHTML += "click" + "<br>";
}, false);

button1.addEventListener("touchstart", function(){
  o2.innerHTML += "touchstart" + "<br>";
}, false);

button1.addEventListener("pointerup", function(){
  o2.innerHTML += "pointerup" + "<br>";
}, false);