JSFiddle - React, Tailwind, and code Playground

HTML

<button class="test" blabla ="test1">test1</a>
 <button class="test" blabla ="test2">test2</a> 
 <button class="test" blabla ="test3">test3</a> 
 <button class="test" blabla ="test4">test4</a> 
 <button class="test" blabla ="test5">test5</a>

JavaScript

$('.test').click(function(){  
  value =  $(this).attr("blabla");
  alert ('Блабла = '+value);    
});