words.go

package main

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

func WordCount(s string) map[string]int {
	fields := strings.Fields( s )
	output := map[string]int{}
	for _,v := range fields {
		if _, exists := output[v]; exists {
			output[v] = 1	
		} else {
			output[v] += 1
		}
	}
	
	return output
}

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