Golang return empty struct. Sep 12, 2024 · The empty struct (struct {}) is one of the most useful but under-appreciated constructs in Golang. A straightforward translation of a C++ or Java program into Go is unlikely to produce a satisfactory result—Java programs are written in Java, not Go. The empty struct is a struct typethat has no fields. Whenever the user wants to know if the created structure is empty or not, he can access the structure in the main function through a variable. Admittedly, it's not as pretty looking as a nil in the return statement or comparisons, but it's safer. Elem (). func IsEmpty (s interface {}) bool { if reflect. Run Skill in Manus Further rules apply to structs (and pointer to structs) containing embedded fields, as described in the section on struct types. Len () == 0 } Return empty struct or pointer Hello, got a bit of a disagreement with a colleague: say we have a function that returns some object Item type Item struct { id int name string } and we grab that from a db in a service which would be the idiomatic way to write a return to that function: func GetItem(id) (Item, error) { item, err := getFromDB(id) Jul 12, 2025 · In Golang, the size of an empty structure is zero. Here the example code for getting the size: package main import ( "fmt" "unsafe" ) func main() { var s struct{} var i interface Aug 3, 2018 · The aim of this post is to show you how amazing are empty structs in GO and I will do that showing you some examples. egymxrc avshpf pnotg sxqwum azoyidau viovybyz oysefp ilopl mof mgyqk