textContent
const $carrot = document
.querySelector('section > ul > li');
$carrot;
$carrot.textContent;
$carrot.textContent = '제주당근';
classList
const $onion = document
.querySelector('section ul')
.lastElementChild;
$onion;
$onion.classList;
$onion.classList.remove('hidden');
$onion.classList.add('organic');