return values from "map" & print them

Question

I am just trying to print the output of map function...

Input: "hello world" Output expected: map['h': 1, 'e': 1, 'l': 3, 'o': 2, 'r': 1, 'w': 1, 'd': 1, ' ': 1] My Code:

package main

import "fmt"

/*
https://www.programmingexpert.io/programming-with-go/maps/practice-questions/1

*/
func main() {
    CharacterFrequency("hello world")

}

func CharacterFrequency(sentence string) map[rune]int {
    characters := map[rune]int{}
    // characters := make(map[rune]int)

    for _, char := range sentence {
        value, ok := characters[char]

        if !ok {
            characters[char] = 1
        } else {
            characters[char] = value + 1
        }
    }
    //fmt.Println(characters)
    //fmt.Printf("%c", characters)
    fmt.Printf("%c", map[rune]int)  // so here is where I am not getting proper values
    return characters
}

//fmt.Println(characters)
//fmt.Printf("%c", characters)
fmt.Printf("%c", map[rune]int)  // so here is where I am not getting proper values

expecting: map['h': 1, 'e': 1, 'l': 3, 'o': 2, 'r': 1, 'w': 1, 'd': 1, ' ': 1]

fmt.Println(characters) gave me below map[32:1 100:1 101:1 104:1 108:3 111:2 114:1 119:1]

fmt.Printf("%c", characters) gave me below map[ :☺ d:☺ e:☺ h:☺ l:♥ o:☻ r:☺ w:☺]

fmt.Printf("%c", map[rune]int) blows up with ".\10_go_map_dict_q1.go:29:19: map[rune]int (type) is not an expression"

Answer 1

package main

import "fmt"

func main() {
    CharacterFrequency("hello world")
}

func CharacterFrequency(sentence string) map[string]int {
    characters := map[string]int{}
    for _, char := range sentence {
        characters[string(char)]++
    }
    fmt.Printf("%v", characters)
    // Output: map[ :1 d:1 e:1 h:1 l:3 o:2 r:1 w:1]
    return characters
}