Convert XML data to CSV String with XQuery

Consider the following XML:

<LIST>
    <Name>Jon</Name>
    <Name>Dan</Name>
    <Name>Bill</Name>
    <Name>Jack</Name>
</LIST>

I need output as a string as a CSV like Jon,Dan,Bill,Jack using XQuery.

I have done it using FLWOR expressions and normalize-space and then replacing the spaces with commas. However, I believe there should be a better way to do it in XQuery.