Possible JS error in WebEngine Markdown Editor Example

In the second-to-last topic, Creating an Index File [[WebEngine Markdown Editor Example | Qt WebEngine 6.4.2|https://doc.qt.io/qt-6/qtwebengine-webenginewidgets-markdowneditor-example.html]], midway through the code block, we have:

var updateText = function(text) {
placeholder.innerHTML = marked(text);
}

and I think we may need:

var updateText = function(text) {
placeholder.innerHTML = marked.parse(text);
}