This document appears to be a slide deck about loops and iteration in Google Go. It includes examples of conditional loops using a for loop, an infinite loop, using the range keyword in loops, a functional example with a print_slice function, and asserting the type within a function. The slides progress from basic loops to more advanced concepts like functions, variadic parameters, and type assertions.

1. Going Loopy
adventures in iteration with Google Go
Eleanor McHugh
Going Loopy 1 http://slides.games-with-brains.net/

2. the conditional loop
Going Loopy 2 http://slides.games-with-brains.net/

3. package main
import "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
fmt.Printf("%v: %vn", i, s[i])
}
}
Going Loopy 3 http://slides.games-with-brains.net/

4. package main
import "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
fmt.Printf("%v: %vn", i, s[i])
}
}
0: 0
1: 2
2: 4
3: 6
4: 8
Going Loopy 4 http://slides.games-with-brains.net/

5. package main
import "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
fmt.Printf("%v: %vn", i, s[i])
}
}
Going Loopy 5 http://slides.games-with-brains.net/

6. package main
import "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
fmt.Printf("%v: %vn", i, s[i])
}
}
Going Loopy 6 http://slides.games-with-brains.net/

7. package main
import "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
fmt.Printf("%v: %vn", i, s[i])
}
}
Going Loopy 7 http://slides.games-with-brains.net/

8. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 8 http://slides.games-with-brains.net/

9. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 9 http://slides.games-with-brains.net/

10. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 10 http://slides.games-with-brains.net/

11. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 11 http://slides.games-with-brains.net/

12. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 12 http://slides.games-with-brains.net/

13. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 13 http://slides.games-with-brains.net/

14. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 14 http://slides.games-with-brains.net/

15. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 15 http://slides.games-with-brains.net/

16. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 16 http://slides.games-with-brains.net/

17. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 17 http://slides.games-with-brains.net/

18. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 18 http://slides.games-with-brains.net/

19. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 19 http://slides.games-with-brains.net/

20. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 20 http://slides.games-with-brains.net/

21. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 21 http://slides.games-with-brains.net/

22. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i := 0; i < len(s); i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 22 http://slides.games-with-brains.net/

23. the infinite loop
Going Loopy 23 http://slides.games-with-brains.net/

24. package main
import . "fmt"
func main() {
defer func() {
recover()
}()
s := []int{0, 2, 4, 6, 8}
for i := 0; ; i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 24 http://slides.games-with-brains.net/

25. package main
import . "fmt"
func main() {
defer func() {
recover()
}()
s := []int{0, 2, 4, 6, 8}
for i := 0; ; i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 25 http://slides.games-with-brains.net/

26. package main
import . "fmt"
func main() {
defer func() {
recover()
}()
s := []int{0, 2, 4, 6, 8}
for i := 0; ; i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 26 http://slides.games-with-brains.net/

27. package main
import . "fmt"
func main() {
defer func() {
recover()
}()
s := []int{0, 2, 4, 6, 8}
for i := 0; ; i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 27 http://slides.games-with-brains.net/

28. package main
import . "fmt"
func main() {
defer func() {
recover()
}()
s := []int{0, 2, 4, 6, 8}
for i := 0; ; i++ {
Printf("%v: %vn", i, s[i])
}
}
Going Loopy 28 http://slides.games-with-brains.net/

29. the range
Going Loopy 29 http://slides.games-with-brains.net/

30. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 30 http://slides.games-with-brains.net/

31. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 31 http://slides.games-with-brains.net/

32. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 32 http://slides.games-with-brains.net/

33. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 33 http://slides.games-with-brains.net/

34. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 34 http://slides.games-with-brains.net/

35. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 35 http://slides.games-with-brains.net/

36. a functional interlude
Going Loopy 36 http://slides.games-with-brains.net/

37. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s []int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 37 http://slides.games-with-brains.net/

38. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s []int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 38 http://slides.games-with-brains.net/

39. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s []int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 39 http://slides.games-with-brains.net/

40. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s []int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 40 http://slides.games-with-brains.net/

41. package main
import . "fmt"
func main() {
print_slice(0, 2, 4, 6, 8)
}
func print_slice(s ...int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 41 http://slides.games-with-brains.net/

42. package main
import . "fmt"
func main() {
print_slice(0, 2, 4, 6, 8)
}
func print_slice(s ...int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 42 http://slides.games-with-brains.net/

43. package main
import . "fmt"
func main() {
print_slice(0, 2, 4, 6, 8)
}
func print_slice(s ...int) {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
Going Loopy 43 http://slides.games-with-brains.net/

44. asserting type
Going Loopy 44 http://slides.games-with-brains.net/

45. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
for i, v := range s.([]int) {
Printf("%v: %vn", i, v)
}
}
Going Loopy 45 http://slides.games-with-brains.net/

46. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
for i, v := range s.([]int) {
Printf("%v: %vn", i, v)
}
}
Going Loopy 46 http://slides.games-with-brains.net/

47. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
for i, v := range s.([]int) {
Printf("%v: %vn", i, v)
}
}
Going Loopy 47 http://slides.games-with-brains.net/

48. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
if s, ok := s.([]int); ok {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 48 http://slides.games-with-brains.net/

49. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
if s, ok := s.([]int); ok {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 49 http://slides.games-with-brains.net/

50. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
if s, ok := s.([]int); ok {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 50 http://slides.games-with-brains.net/

51. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
if s, ok := s.([]int); ok {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 51 http://slides.games-with-brains.net/

52. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
if s, ok := s.([]int); ok {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 52 http://slides.games-with-brains.net/

53. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
if s, ok := s.([]int); ok {
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 53 http://slides.games-with-brains.net/

54. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
switch s := s.(type) {
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 54 http://slides.games-with-brains.net/

55. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
switch s := s.(type) {
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 55 http://slides.games-with-brains.net/

56. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
switch s := s.(type) {
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 56 http://slides.games-with-brains.net/

57. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
switch s := s.(type) {
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 57 http://slides.games-with-brains.net/

58. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
switch s := s.(type) {
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 58 http://slides.games-with-brains.net/

59. package main
import . "fmt"
func main() {
print_slice([]int{0, 2, 4, 6, 8})
}
func print_slice(s interface{}) {
switch s := s.(type) {
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 59 http://slides.games-with-brains.net/

60. closures
Going Loopy 60 http://slides.games-with-brains.net/

61. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 61 http://slides.games-with-brains.net/

62. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 62 http://slides.games-with-brains.net/

63. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 63 http://slides.games-with-brains.net/

64. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 64 http://slides.games-with-brains.net/

65. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 65 http://slides.games-with-brains.net/

66. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 66 http://slides.games-with-brains.net/

67. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 67 http://slides.games-with-brains.net/

68. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 68 http://slides.games-with-brains.net/

69. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 69 http://slides.games-with-brains.net/

70. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_slice(func(i int) int { return s[i] })
}
func print_slice(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
}
}
Going Loopy 70 http://slides.games-with-brains.net/

71. upon reflection
Going Loopy 71 http://slides.games-with-brains.net/

72. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] * 2 })
}
func print_values(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 72 http://slides.games-with-brains.net/

73. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] * 2 })
}
func print_values(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 73 http://slides.games-with-brains.net/

74. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] * 2 })
}
func print_values(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 74 http://slides.games-with-brains.net/

75. package main
import . "fmt"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] * 2 })
}
func print_values(s interface{}) {
switch s := s.(type) {
case func(int) int:
for i := 0; i < 5; i++ {
Printf("%v: %vn", s(i))
}
case []int:
for i, v := range s {
Printf("%v: %vn", i, v)
}
}
}
Going Loopy 75 http://slides.games-with-brains.net/

76. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface{})
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i))
}
}
}
Going Loopy 76 http://slides.games-with-brains.net/

77. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface{})
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i))
}
}
}
Going Loopy 77 http://slides.games-with-brains.net/

78. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 78 http://slides.games-with-brains.net/

79. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 79 http://slides.games-with-brains.net/

80. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 80 http://slides.games-with-brains.net/

81. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 81 http://slides.games-with-brains.net/

82. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 82 http://slides.games-with-brains.net/

83. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 83 http://slides.games-with-brains.net/

84. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 84 http://slides.games-with-brains.net/

85. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 85 http://slides.games-with-brains.net/

86. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 86 http://slides.games-with-brains.net/

87. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 87 http://slides.games-with-brains.net/

88. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 88 http://slides.games-with-brains.net/

89. package main
import . "fmt"
import . "reflect"
func main() {
s := []int{0, 2, 4, 6, 8}
print_values(s)
print_values(func(i int) int { return s[i] })
}
func print_values(s interface{}) {
switch s := ValueOf(s); s.Kind() {
case Func:
p := []Value{ ValueOf(i) }
for i := 0; i < 5; i++ {
Printf("%v: %vn", s.Call(p)[0].Interface())
}
case Slice:
for i := 0; i < s.Len(); i++ {
Printf("%v: %vn", i, s.Index(i).Interface())
}
}
}
Going Loopy 89 http://slides.games-with-brains.net/

90. http://golang.org/
#golang