JSFiddle - React, Tailwind, and code Playground

HTML

<button>test1</button>
  <button>test2</button>
  <button>test3</button>

JavaScript

var nodes = document.getElementsByTagName('button');
   for (var i = 0; i < nodes.length; i++) {
   (function(i){
   nodes[i].addEventListener('click', function() {
       console.log('You clicked element #' + i);
   });
}(i))
       
   }