added new error logging using go's standard logger, exited the programme if the error occoured

Author: anarchymonkey

error_handling/car/car.go

@@ -6,6 +6,7 @@ import (
 )
 
 func StartCar(carName string) (string, error) {
+
 	if carName == "" {
 		return "", errors.New("there has been some error! Cannot send empty car name")
 	}

error_handling/driver/driver.go

@@ -3,15 +3,23 @@ package main
 import (
 	"fmt"
 
+	"log"
+
 	"aniket-batabyal.com/car"
 )
 
 func main() {
-	fmt.Println("Hey I am a driver")
-	message, error := car.StartCar("Ford Mustang")
+	// This says that set a prefix everytime you land in an error
+	log.SetPrefix("######====> ")
+	// This disables ot
+	log.SetFlags(0)
+
+	message, error := car.StartCar("")
 
 	if error != nil {
-		fmt.Println(error)
+		// this prints the error and exits the application by setting os.Exit(1)
+		log.Print("A lot of errors is not good for your health")
+		log.Fatal(error)
 	}
-	fmt.Println("The message is: ", message)
+	fmt.Println(message)
 }