Go map of functions

Question

I have Go program that has a function defined. I also have a map that should have a key for each function. How can I do that?

I have tried this, but this doesn't work.

 func a(param string) {  }  m := map[string] func {     'a_func': a, }  for key, value := range m {    if key == 'a_func' {     value(param)     } } 

Answer 1

Are you trying to do something like this? I've revised the example to use varying types and numbers of function parameters.

package main  import "fmt"  func f(p string) {     fmt.Println("function f parameter:", p) }  func g(p string, q int) {     fmt.Println("function g parameters:", p, q) }  func main() {     m := map[string]interface{}{         "f": f,         "g": g,     }     for k, v := range m {         switch k {         case "f":             v.(func(string))("astring")         case "g":             v.(func(string, int))("astring", 42)         }     } }