JSFiddle - React, Tailwind, and code Playground
HTML
<div><span>1</span></div>
<div><span>1</span></div>
<div><span>1</span></div>
JavaScript
var a = $('<span>2</span');
$('div').append(a);
a.text('This should chage the 3 spans');
<div><span>1</span></div>
<div><span>1</span></div>
<div><span>1</span></div>
var a = $('<span>2</span');
$('div').append(a);
a.text('This should chage the 3 spans');