Oh hi, author here! I tend to agree on `hangIf3`. I have a habit of mixing in other kinds of puzzles. Sometimes they're fun, but sometimes they're irrelevant to the main point ... I'll rethink this one.
p.s. thanks for the compliments on the format! If you (or anyone else) wants to create tutorials in this format, https://tigyog.app/ is a full platform for that! WYSIWYG editor and all :-)
Could it use more readable identifiers like `hang•if•3`?
This stay valid js without mixed case found in usual code in the wild sticking to ascii. To my mind it feels like avoidable visual clutter, all the more in didactic work.
Apart from that, it was nicely done all the way, congratulations and thanks for the pleasing moment.
p.s. thanks for the compliments on the format! If you (or anyone else) wants to create tutorials in this format, https://tigyog.app/ is a full platform for that! WYSIWYG editor and all :-)