In Go, you can declare a struct inside another struct. This is normally done like so
type Address struct {
City string
Country string
}
type Person struct {
Name string
Address Address // non-embedded
}This make its explicit that Address is a separate field inside of Person. So it goes Person.Address.City in order to access fields inside of address.
However you can use embedded structs when you want cleaner and DRY code.
So that would look like this
type Address struct {
City string
Country string
}
type Person struct {
Name string
Address // embedded struct
}`Person.City // ✅ works - Promoted field`
This allows field of Address to be promoted to Person. Kind of like inheritance-lite though Golang doesn’t have inheritance. Instead encourages “composition” over inheritance.