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jerryan999/pointerExample.go

Last active April 18, 2022 03:57
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pointerExample.go
package main
import "fmt"
type User struct {
Name string
Age int
}
func (u User) String() string {
return fmt.Sprintf("User[Name: %s, Age: %d]", u.Name, u.Age)
}
// value receiver
func (u User) SetAge(age int) {
u.Age = age
fmt.Println(u)
}
func main() {
u := User{
Name: "John",
Age: 25,
}
u.SetAge(30)
fmt.Println(u)
}
Raw
pointerExample2.go
package main
import "fmt"
type User struct {
Name string
Age int
}
func (u User) String() string {
return fmt.Sprintf("User[Name: %s, Age: %d]", u.Name, u.Age)
}
// value receiver
func (u *User) SetAge(age int) {
u.Age = age
fmt.Println(u)
}
func main() {
u := User{
Name: "John",
Age: 25,
}
u.SetAge(30)
fmt.Println(u)
}
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