My solution for the map exercise on A Tour of Go.

Exercise: Maps

Implement WordCount. It should return a map of the counts of each “word” in the string s. The wc.Test function runs a test suite against the provided function and prints success or failure.

package main
package main
import (
 "strings"
"golang.org/x/tour/wc"
)
func WordCount(s string) map[string]int {
 //using make to initialise an empty map
 stringSlice := make(map[string]int)
 
 //words is a slice of substrings of s
 words := strings.Fields(s)
 
 for _, v := range words {
  //If key is not in the map, 
  //then elem is the zero value for the map's element type.
  //zero value of int is 0
  //incrementing it by 1 for the number of times the key is found
  stringSlice[v]++
  
 }
 return stringSlice
}
func main() {
 wc.Test(WordCount)
}

Output:

output

Simple and straight forward let me know if there is a better solution (: