JSFiddle - React, Tailwind, and code Playground

by Сергей Тарасевич

HTML

<div class="test_class2" data-content="srar">
1
</div>
<div class="test_class3" data-content="comment">
5467543
</div>
<div class="test_class3" data-content="main">
345
</div>
<div class="btn" data-btn="srar" data-text="test 3">
  srar srar
</div>
<div class="btn" data-btn="comment" data-text="test 2">
  comment
</div>
<div class="btn" data-btn="main" data-text="test 1">
  main main main
</div>

JavaScript

TEST = {}

TEST.addContent = function(a) {
	var b = $('[data-content="' + a + '"]'),
  		c = b.html();
      
      c = +c + 1;
      
  b.html(c);

}

$(document).on('click', '[data-btn]', function() {
  var a = $(this);

  TEST.addContent(a.data('btn'));

});