panic.go

package main

import (
	"errors"
	"fmt"
	"strconv"
	"strings"
)

func validate(input string) (bool, error) {
	if strings.TrimSpace(input) == "" {
		return false, errors.New("cannot be empty")
	}

	return true, nil
}

func main(){
  var anime string
	fmt.Println("enter your favorite anime ")
	fmt.Scanln(&anime)
	if valid, err := validate(anime); valid {
		fmt.Println("favorite anime is ", anime)
	} else {
		panic(err.Error())
	}
}

// jika salah
// enter your favorite anime 
//
//error eccured cannot be empty
// saya tidak mengisi maka program error dan stop

// jika benar makaa program akan lanjut berjalan