JSFiddle - React, Tailwind, and code Playground

by omarqa

HTML

<div id="log"></div>
<hr>

<div id="div1" class="item">div 1</div>
<div id="div2" class="item">div 2</div>
<div id="div3" class="item">div 3</div>
<div id="div4" class="item">div 4</div>
<div id="div5" class="item">div 5</div>
<div id="div6" class="item">div 6</div>

JavaScript

var items = document.getElementsByClassName("item"),
    log = document.getElementById("log");

log.innerText = items.length+" 'item' elements";