JSFiddle - React, Tailwind, and code Playground

by bluey

HTML

<div class='a'>
</div>
<hr />
<div class='b'>
</div>
<hr />
<button class='btn'>Go</button>

JavaScript

$('.btn').on('click', function(){
    $('.b').append('<span>Derp</span>');
});

$('.b span').each(function(){
	alert('x');
});