Collect List JS Advanced

function extractText() {
    let idEl = document.getElementById('items')
    let textArea = document.getElementById('result');
    textArea.textContent = idEl.textContent;
}

OR

function extractText() {
    let liElements = document.querySelectorAll('ul li');

    for (let li of liElements) {
        let textArea = document.getElementById('result');
        textArea.textContent += li.textContent + '\n';
    }
}