JavaScript将无序列表中每行的文本与分隔符连接在一起，并附加到另一个ul

<ul id="originalUl">
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
</ul>

<ul id="newUl"></ul>

<script>
    var originalUl = document.getElementById('originalUl');
    var newUl = document.getElementById('newUl');

    var lis = originalUl.getElementsByTagName('li');
    var separator = '-';

    for (var i = 0; i < lis.length; i++) {
        var text = lis[i].textContent || lis[i].innerText;
        var newText = text + separator;

        var newLi = document.createElement('li');
        newLi.textContent = newText;
        newUl.appendChild(newLi);
    }
</script>