JSFiddle - React, Tailwind, and code Playground

by KyleMuir

HTML

<span class="cond">(<span class="cond">(grade >= passingMark)</span> && <span class="cond">(grade<101)</span>)
    <div>
Last child: <span id="result"></span>
    </div>

JavaScript

var elements = document.getElementsByClassName('cond');
var totalElements = elements.length;

console.log(elements);
console.log(totalElements);

var lastElement = elements[totalElements -1];
console.log(lastElement);

document.getElementById('result').innerText = lastElement.innerText;