Tour of Golang | Exercise: Maps - https://tour.golang.org/moretypes/23

MapsExercise.go

package main

import (
	"golang.org/x/tour/wc"
	"strings"
)

func WordCount(s string) map[string]int {
	a := strings.Fields(s)
	m := make(map[string]int)
	
	for _, element := range a {
		m[element] += 1
	}
	return m
}

func main() {
	wc.Test(WordCount)
}

Output:
PASS
f("I am learning Go!") =
map[string]int{"I":1, "am":1, "learning":1, "Go!":1}
PASS
f("The quick brown fox jumped over the lazy dog.") =
map[string]int{"jumped":1, "the":1, "The":1, "brown":1, "fox":1, "over":1, "lazy":1, "dog.":1, "quick":1}
PASS
f("I ate a donut. Then I ate another donut.") =
map[string]int{"I":2, "ate":2, "a":1, "donut.":2, "Then":1, "another":1}
PASS
f("A man a plan a canal panama.") =
map[string]int{"A":1, "man":1, "a":2, "plan":1, "canal":1, "panama.":1}

Program exited.