maps.go

package main

import "fmt"

func keys(m map[string]int) ([]string, int) {
	var keys = []string{}
	var c int = 0
	for key, _ := range m {
		keys = append(keys, key)
		c += 1
	}
	return keys, c
}

func main() {
	m := map[string]int{
		"Emi":  29,
		"Memo": 30,
	}
	k, c := keys(m)
	fmt.Printf("keys %v values %v", k, c)
}