String to Map

string_map.go

func convertStringToMap(in string) map[string]int32 {
    rA := []rune(in)
  strMap := map[string]int32{}
    for _, v := range rA {
        if count,ok := strMap[string(v)]; ok {
        strMap[string(v)]=count+1
        }else{
        strMap[string(v)]=1
        }
    }

    return strMap
}