Golang notes

// Print header
func myFunc(w http.ResponseWriter, r *http.Request) {
  for k, v := range r.Header {
    log.Println("key:", k, "value:", v)
  }
}


// A. Print type of variable
fmt.Printf("Type of x %T\n",  x)


// B. Composite literals
type person struct {
            fname string
            lname string
          }

func main() {
  // 1. Slice
  numbers := []int{1, 1, 2, 3, 5, 8, 13}
  fmt.Println("Slice")
  fmt.Println(numbers)

  // 2. Map
  ages := map[string] int {
                  "Henrik": 49,
                  "Ramona": 12,
                  "Obi": 6,
                }
  fmt.Println(ages)

  // 3. struct
  p1 := person{"Luke", "Skywalker"}
  fmt.Println(p1)
}


// 3. Function calls

type person struct {
            fname string
            lname string
          }

  type jedi struct {
            person
            hasForce bool
  }

  func (p person) speak() {
    fmt.Println("I want money, says " + p.fname + " " + p.lname)
  }

  func(j jedi) speak() {
    fmt.Println(j.fname + " says May the force be with you")
  }

func main() {
  p1 := person{"Han", "Solo"}
  fmt.Println(p1)
  p1.speak()

  j1 := jedi{
    person {
      "Luke",
      "Skywalker",
    } ,
    true,
  }
  j1.speak()
}