A `map` implementation for go Slices

map.go

package main

import (
	"fmt"
	"strconv"
)

func Map[T1, T2 any](s []T1, f func(T1) T2) []T2 {
	newSlice := make([]T2, 0)
	for _, item := range s {
		newSlice = append(newSlice, f(item))
	}
	return newSlice
}

func main() {
	s := []int {1, 2, 3, 4}
	newS := Map(s, strconv.Itoa)
	fmt.Printf("%T -> %s", newS, newS)
  // []string -> [1 2 3 4]
}