JSFiddle - React, Tailwind, and code Playground

HTML

<div id="a">
  <button id="b">next</button>
</div>

JavaScript

a.onclick = function(evt){
	console.log('a1', this)
  console.log('a1', evt.target)
  console.log('a1', evt.currentTarget)
}
b.onclick = function(evt){
	console.log('b1', this)
  console.log('b1', evt.target)
  console.log('b1', evt.currentTarget)
}