After being discouraged by the ever looming "threat of AI" in programming, I took up some older books. If you didn't get it, I highly recommend "higher order perl" https://en.wikipedia.org/wiki/Higher-Order_Perl

That book has some of the coolest programming techniques. Even if not all of them are applicable everywhere, truly a good refresher. I don't know perl but write the examples and follow along in JS. Great stuff.