Learning Functional Programming in Go

Composition example in Go

We're going to create two functions, Humanize and Emphasize (representing f and g), and a composition function of Emphasize(Humanize(true)) to illustrate the path A to B to C:

The src/compose/compose.go file contains the following code:

package composefunc Humanize(b bool) string {   if b { return "yes" } else { return "no" }}func Emphasize(s string) string {   return s + "!!"}func EmphasizeHumanize(b bool) string {   return Emphasize(Humanize(b))}

main.go looks like this:

package mainimport (   "fmt"   . "compose")func main() {   fmt.Println("A to B - Humanize(true):", Humanize(true))   fmt.Println("B to C - Emphasize(\"yes\"):" ...