const userData = () => { const userName = document.getElementById('name').value; const userSurname = document.getElementById('surname').value; const userPhone = document.getElementById('phone').value; const userAddress = document.getElementById('address').value; if (userName && userPhone) { return { name: userName, surname: userSurname, phone: userPhone, address: userAddress } } } document.querySelector('.user-info').onsubmit = function (event) { event.preventDefault(); localStorage.setItem('userInfo', JSON.stringify(userData())); window.open('./cart.html') }