JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" id="test">button</a>

CSS

#test{
  color:red;
}

#test2{
  color:green;
}

JavaScript

var element = document.getElementById('test');

element.addEventListener('click', function() {
    this.id ='test2';
    alert("ok");
}, false);


var element2 = document.getElementById('test2');



element2.addEventListener('click', function() {
    alert("ok2");

}, false);