// Chapter 23 example: maps that hold maps and slices.
// Run with: go run exercises/23/02-nested.go

package main

import "fmt"

func main() {
	positions := map[string]map[string]int{
		"Keiko": {"x": 0, "y": 5, "z": -3},
	}
	inventories := map[string][]string{
		"Keiko": {"sword", "potion", "map"},
	}

	fmt.Println(positions["Keiko"]["x"])   // 0
	fmt.Println(positions["Keiko"]["y"])   // 5
	fmt.Println(inventories["Keiko"][0])   // sword
	fmt.Println(inventories["Keiko"][1])   // potion
	fmt.Println(len(inventories["Keiko"])) // 3

	positions["Keiko"]["x"] = 2
	fmt.Println(positions["Keiko"]["x"]) // 2

	inventories["Keiko"] = append(inventories["Keiko"], "rope")
	fmt.Println(inventories["Keiko"]) // [sword potion map rope]
}