package main
import (
"fmt"
)
type User1 struct {
Name string
Email string
}
type User2 struct {
Name string
Email string
}
// String satisfies the fmt.Stringer interface
// Defining it on type User2 makes it available on *User2 as well
func (u User2) String() string {
return fmt.Sprintf("%s <%s>", u.Name, u.Email)
}
func main() {
u1 := &User1{
Name: "John Doe",
Email: "johndoe@example.com",
}
fmt.Printf("u1: type: %T, value: %s\n\n", u1, u1)
u2 := User2{
Name: "John Doe",
Email: "johndoe@example.com",
}
fmt.Printf("u2: type: %T, value: %s\n\n", u2, u2)
// method define on type User2 is also available on type *User2
u3 := &User2{
Name: "John Doe",
Email: "johndoe@example.com",
}
fmt.Printf("u3: type: %T, value: %s\n", u3, u3)
}
