I am following these instructions: https://metabox.io/display-user-list-on-the-frontend-with-meta-box/
I have completed step one and step two - but I am confused by step three. I copied and pasted that code and added to my php - but this alone does not work. So I think I am missing something.
Should I be doing something to this code? I am unsure how it links to step one (my meta box form).
I note the instruction "First, import the DataTables library prepared in step 1. Here, I didn’t download it but use it directly by CDN on jsDelivr." - but I think this is what I can't follow.