JSFiddle - React, Tailwind, and code Playground

HTML

<input class="limited" type=checkbox> <br/>
<input class="limited" type=checkbox> <br/>
<input class="limited" type=checkbox> <br/>
<input class="limited" type=checkbox> <br/>

JavaScript

$(document).on('click', '.limited', function(){
   var limit = 2;
   var counter = $('.limited:checked').length;
   if(counter > limit) {
      this.checked = false;
      alert('Limite atingido');
   }
});