[horsawlarway]

And that's fine. But that topic in the article is not Date/OptionParser/GetOptLong - it's

"This week I'm sharp-as-a-tack, and slow and sad as a sack. Here's to next week!"

and I don't see any value add above linking to examples (not built-ins).

Ex - why not explore OptionParser (the actual built-in!) - and compare to ARGV, or contrast with gets.chomp. Or explain how similar the concept is to something like Yargs from the node side.

Also, as a personal aside - I don't really see a bunch of custom formatted printf statements with no attempt at explanation a very good example at all.