parsed javascript object in array by remove null values

Question

I receive such a set of data:

const data = [
    {country_code: 'pl', postal_code: '56-200', city: 'foo'},
    {country_code: 'de', postal_code: '22345', city: null}
];

and I would like to cut null values out of it so it looks like this:

   const parsedResult = [
        {country_code: 'pl', postal_code: '56-200', city: 'foo'},
        {country_code: 'de', postal_code: '22345'}
    ];

I have written a function that works but I would like to do it better so that it is not dependent on further parameters:

return data.map(({ country_code, postal_code, city }) => {
            const preparedObject = {};

            if (country_code) {
                preparedObject.country_code = country_code;
            }

            if (postal_code) {
                preparedObject.postal_code = postal_code;
            }

            if (city) {
                preparedObject.city = city;
            }

            return preparedObject;
        });
    }