package main import ( "fmt" ) func main() { item := "" passByValue(item) fmt.Println(item) fmt.Printf("MEM A %p \n", &item) passByReference(&item) fmt.Println(item) } func passByValue(item string) { item = "hello" } func passByReference(item *string) { fmt.Printf("MEM B %p \n", item) *item = "world" }