JSFiddle - React, Tailwind, and code Playground
HTML
<button>One</button> <button>Two</button> <button>Three</button>
JavaScript
var btns = document.querySelectorAll('button');
for (var i = 0; i < btns.length; i++) {
btns[i].addEventListener('click', function (event) {
console.log('clicked');
}, false);
}