Let's play with a Simple RPG Subfile

I discovered someone else's sample RPG SUBFILE template, written in an old ILE program style.

It looks quite nice, coded differently to my personal style so let's (a) have a play with it, and see how it performs, then (b) modernize it to RPG /free and make some small tweaks to see if it can be improved.

This should (hopefully) be interesting for new/intermediate IBM i programmers.

If you're advanced, don't bother watching -- unless your granny taught you to suck eggs. Which, as I type it, is a very weird saying:

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}
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