Iterator patterns

I’m going to change gears from the previous discussion about goroutines, to different ways of iterating. This can closely relate to goroutines, so we’ll bounce back and forth a bit, I suspect. Meanwhile, if you have any questions specifically about goroutines that I didn’t cover, send me an email. I’ll be happy to fill in those gaps! First off, before really diving into iterator patterns, let’s talk about why we might want iterators.