package learning

import (
	"fmt"
	"time"
)

// Declaring MyError structure
type MyError struct {
	When time.Time
	What string
}

// Declaring pointer method for MyError called Error that returns string
func (e *MyError) Error() string {
	return fmt.Sprintf("at %v, %s", e.When, e.What)
}

// error type: default go interface for returning string with error
func run() error {
	// Returning pointer to new instance of MyError with provided arguments
	return &MyError{
		time.Now(),
		"it didn't work!",
	}
}

func ErrorLearning() {
	// Checking that error, returned from run() is not equal to nil
	if err := run(); err != nil {
		// Printing created error to fmt
		fmt.Println(err)
	}
}

i,err  := strconv.Atoi("42")