package main import ( "encoding/xml" "fmt" "log" ) type ShowOmitEmpty struct { NonEmpty string `xml:",omitempty"` Empty string `xml:",omitempty"` } func printXML(v interface{}) { d, err := xml.Marshal(v) if err != nil { log.Fatalf("xml.Marshal failed with '%s'\n", err) } fmt.Printf("XML: %s\n\n", string(d)) } func main() { v := &ShowOmitEmpty{ NonEmpty: "non empty", Empty: "", } printXML(v) }