Proof of concept Go map function

map.go

package main

import (
  "fmt"
	"strconv"
	"reflect"
)

type mapFunc func(interface{}) (interface{})

func main() {
	arrayIn := []int{1, 2, 3, 4, 5}
	arrayOut1 := goMap(arrayIn, intStringConversion)
	for x := range(arrayOut1) {
		fmt.Println(reflect.TypeOf(arrayOut1[x]))
	}
	fmt.Println("-------------")
	arrayOut2 := goMap(arrayIn, adderFunc)
	for x := range(arrayOut2) {
		fmt.Println(arrayOut2[x])
	}
}

func adderFunc(x interface{}) interface{} {
	return x.(int) + 100
}

func intStringConversion(x interface{}) interface{} {
	return strconv.Itoa(x.(int))
}

func goMap(input interface{}, function mapFunc) []interface{} {
	derp := reflect.ValueOf(input) //Getting messy
	var output = make([]interface{}, derp.Len())
	for i := 0; i < derp.Len(); i++ {
		output[i] = function(derp.Index(i).Interface())
	}
	return output
}