I find that monadic error handling and null safety is as much of a game changer. It gets discussed less, and is obviously not unique to rust, but coming from Ja

I find that monadic error handling and null safety is as much of a game changer. It gets discussed less, and is obviously not unique to rust, but coming from Java I see what I’d guesstimate to be an order of magnitude difference in unhandled error cases. The same logic can be applied in Java or C++ or probably even C, but it also comes down to the wide spread and idiomatic approaches of the language. The rust eco system is not necessarily coherent around the details of errors, but error handling is generally rigorous. The benefits of that can’t be overstated. The compiler is a huge help in getting it right in a way that Java checked exceptions never was. I’m sure that there are other languages that are showing similar wins, though. I haven’t written much Swift, but I imagine that the experience might be similar?