JSFiddle - React, Tailwind, and code Playground

HTML

<input type='button' value='Populate' id='pop'/>
<input type='button' value='Click' class='btn' id='btn'/>

JavaScript

$('#pop').on('click', function(){
   var clone = $('input[id*=btn]').clone();
   $(this).after(clone);
});

$(document).on('click','#btn', function(){
   alert('clicked'); 
});