hw 2 done

hw02_fix_app/main.go

@@ -21,9 +21,10 @@ func main() {
 		path = "data.json"
 	}
 
-	staff, err = reader.ReadJSON(path)
-
-	fmt.Print(err)
+	staff, err = reader.ReadJSON(path, -1)
 
+	if err != nil {
+		fmt.Print(err)
+	}
 	printer.PrintStaff(staff)
 }

hw02_fix_app/printer/pkg.go

@@ -7,14 +7,7 @@ import (
 )
 
 func PrintStaff(staff []types.Employee) {
-	var str string
 	for i := 0; i < len(staff); i++ {
-		str = fmt.Sprintf(
-			"User ID: %d; Age: %d; Name: %s; Department ID: %d; ",
-			staff[i].UserID, staff[i].Age, staff[i].Name, staff[i].DepartmentID,
-		)
-		fmt.Println(str)
+		fmt.Println(staff[i])
 	}
-
-	// fmt.Println(str)
 }

hw02_fix_app/reader/pkg.go

@@ -9,23 +9,22 @@ import (
 	"github.com/es-x/go_basic/hw02_fix_app/types"
 )
 
-func ReadJSON(filePath string) ([]types.Employee, error) {
+func ReadJSON(filePath string, _ int) ([]types.Employee, error) {
 	f, err := os.Open(filePath)
 	if err != nil {
 		fmt.Printf("Error: %v", err)
+		return nil, err
 	}
 
 	bytes, err := io.ReadAll(f)
 	if err != nil {
 		fmt.Printf("Error: %v", err)
-		return nil, nil
+		return nil, err
 	}
 
 	var data []types.Employee
 
 	json.Unmarshal(bytes, &data)
 
-	res := data
-
-	return res, nil
+	return data, nil
 }