How to use countries-and-timezones - 6 common examples

it('should throw an error without specified timezone', () => {
            // $ExpectError
            timezones.getCountriesForTimezone();
        });
    });

it('should return an array of countries for specified timezone', () => {
            const timezone = timezones.getCountriesForTimezone('Europe/Berlin');
            // $ExpectError
            (timezones.getCountriesForTimezone('Europe/Berlin'): void);
        });

it('should return an array of timezones for specified country', () => {
            const timezone = timezones.getTimezonesForCountry('ES');
            // $ExpectError
            (timezones.getTimezonesForCountry('ES'): number);
        });

it('should throw an error without specified country', () => {
            // $ExpectError
            timezones.getTimezonesForCountry();
        });
    });

it('should return an object of countries', () => {
            const allCountries = timezones.getAllCountries();
            // $ExpectError
            (timezones.getAllCountries(): string);
        });
    });

it('should return an object of timezones', () => {
            const allTimezones = timezones.getAllTimezones();
            // $ExpectError
            (timezones.getAllTimezones(): string);
        });
    });