I have a directory with many HTML files. I want to create a "top HTML file", outside that directory, that has one iframe for each HTML file within this directory.
I know I could manually create such a file with each iframe element linking to each HTML within the directory.
However, if the HTML files in the directory change, I would have to manually update the HTML file.

I am wondering if it is possible to automatize this using JavaScript and make this top HTML file independent of the content of the directory with HTML.

I have seen a few examples for images that I was not able to make work with this.