> I would say the question mark improves readability, compared to having to check/return error codes by hand after every function call. Which is one of my comp

> I would say the question mark improves readability, compared to having to check/return error codes by hand after every function call. Which is one of my complaints about Go. result, err = doSomething(); if err != nil { ... } result, err = doSomething2(); if err != nil { ... }