shortuuid.go
func NewWithNamespace(name string) string {
	var u uuid.UUID

	switch {
	case name == "":
		u = uuid.New()
	case strings.HasPrefix(name, "http"):
		u = uuid.NewSHA1(uuid.NameSpaceURL, []byte(name))
	default:
		u = uuid.NewSHA1(uuid.NameSpaceDNS, []byte(name))
	}

	return DefaultEncoder.Encode(u)
}
func NewWithNamespace(name string) string {
	var u uuid.UUID

	switch {
	case name == "":
		u = uuid.New()
	case strings.HasPrefix(name, "http"):
		u = uuid.NewSHA1(uuid.NameSpaceURL, []byte(name))
	default:
		u = uuid.NewSHA1(uuid.NameSpaceDNS, []byte(name))
	}

	return DefaultEncoder.Encode(u)
}
func NewWithNamespace ( name string ) string { var u uuid . UUID switch { case name == " " : u = uuid . New ( ) case strings . HasPrefix ( name , " " ) : u = uuid . NewSHA1 ( uuid . NameSpaceURL , [ ] byte ( name ) ) default : u = uuid . NewSHA1 ( uuid . NameSpaceDNS , [ ] byte ( name ) ) } return DefaultEncoder . Encode ( u ) }
// NewWithNamespace returns a new UUIDv5 (or v4 if name is empty), encoded with base57.
NewWithNamespace returns a new UUIDv5 ( or v4 if name is empty ) encoded with base57 .