Tour of Go 2.0

Exercise: Maps

Implement WordCount. It should return a map[string]int counting how many times each word appears in s.

wc.Test will run your function against several test cases and report pass or fail.

Hint: strings.Fields splits a string on whitespace — it’ll save you some work.

main.go ▶ Run in Playground 
package main

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

func WordCount(s string) map[string]int {
	return map[string]int{"x": 1}
}

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