JSFiddle - React, Tailwind, and code Playground
by rjha999
HTML
<div id="Container">
<div>Test 1</div>
</div>
<button id="addElement">Add</button>
JavaScript
$("#addElement").click(function(){
var totalElements=$("#Container>div").length;
var name="Test"+ (totalElements+1);
$("<div id = '"+name+"'>"+name+"</div>").appendTo("#Container");
});