JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="list"></ul>
<button id="button">Button</button>

JavaScript

var button = document.getElementById('button');
var ul = document.getElementById('list');
var counter = 0;

button.onclick = function(){
	var li = document.createElement('li');
    
    counter++;
    li.textContent = counter;
    ul.appendChild(li);
};

$(ul).on('click','li',function(){
   alert(this.textContent) 
});