Since Go has generics for slices (aka arrays), maps (aka dictionaries / hash-tables) and channels, I was pleasantly surprised how little I miss them in practice. Just some adaptation-of-thinking-habits mostly. Don't miss them anymore. I have a micro-codegen pre-build step (written in Go of course) for the very few use-cases where something akin to those (more generally, templated programming) does come in handy. But those are really far and few between.