Toggle an element when a button is clicked

const seeMore = document.getElementById("seeMoreBtn");
const article = document.getElementById("article");

seeMore.addEventListener("click", () => {
    article.classList.toggle("expanded");

    const expanded = article.classList.contains("expanded");
    if (expanded) {
        seeMore.innerHTML = "See Less";
    } else {
        seeMore.innerHTML = "See More";
    }
});