MapSorter.go

package mapsorter

import (
	"reflect"
	"sort"
)

func SortedKeys(m interface{}) []string {
	keys := reflect.ValueOf(m).MapKeys()
	ret := make([]string, 0, len(keys))
	for _, v := range keys {
		ret = append(ret, v.String())
	}
	sort.Strings(ret)
	return ret
}