using superheroes for refresh my mind about Golang structs

package main import "fmt" type skill struct { Power string } type hero struct { Name string Alias string skill } func main() { h1 := hero{ Name: "Bruce Wayne", Alias: "Batman", skill: skill{ Power: "a lot of gadgets", }, } h2 := hero{ Name: "Tony Stark", Alias: "Iron", skill: skill{ Power: "hi-tech armor", }, } fmt.Printf("the best skill of %s is %s \n", h1.Alias, h1.skill.Power) fmt.Printf("the best skill of %s is %s \n", h2.Alias, h2.skill.Power) s1 := skill{ Power: "velocity", } h3 := hero{ Name: "Barry Allen", Alias: "Flash", skill: skill{ Power: s1.Power, }, } fmt.Printf("the best skill of %s is %s \n", h3.Alias, h3.skill.Power) } 

package main import "fmt" type skill struct { Power string } type hero struct { Name string Alias string } type heroSkill struct { hero skill } func main() { hs1 := heroSkill{ hero: hero{ Name: "Clark Kent / Kal-El", Alias: "Superman", }, skill: skill{ Power: "a lot of cool superpowers", }, } hs2 := heroSkill{ hero: hero{ Name: "Steve Rogers", Alias: "Capitan America", }, skill: skill{ Power: "strong", }, } fmt.Printf("the best skill of %s is %s \n", hs1.hero.Alias, hs1.skill.Power) // check the different way to call the struct, in this second Print, there no need to call the sub struct. fmt.Printf("the best skill of %s is %s \n", hs2.Alias, hs2.Power) }