localStorage.setItem Multpile arra

        dataObj = {
            'user_id': user_id,
            'prov'   : prov.val(),
            'mun'    : mun.val(),
            'brgy'   : brgy.val(),
            'r_code' : r_code,
            'h_class': h_classification.val()
        };
        dataObject.push(dataObj);
        localStorage.setItem('dataObject', JSON.stringify(dataObject));
Graceful Gull