Kak, saya mohon bantuannya untuk koreksi kode javaScript saya. Mengapa nomor 6 sampai 10 selalu salah padahal saya coba isi form dan submit berhasil?

document.addEventListener(‘DOMContentLoaded’, () => {
const form = document.getElementById(‘form’);
const warningDiv = document.getElementById(‘warning’);

if (!form || !warningDiv) {
    console.error('Form or warning div not found');
    return;
}

// Function to get form data
function handleGetFormData() {
    const name = document.getElementById('name').value.trim();
    const email = document.getElementById('email').value.trim();
    const city = document.getElementById('city').value.trim();
    const dob = document.getElementById('dob').value.trim();
    const gender = document.querySelector('input[name="gender"]:checked')?.value;
    const password = document.getElementById('password').value.trim();
    const zipCode = document.getElementById('zip-code').value.trim();
    const status = document.getElementById('status').checked;

    return { name, email, city, dob, gender, password, zipCode, status };
}

// Function to check if a string is a number
function isNumber(string) {
    return !isNaN(string) && !isNaN(parseFloat(string));
}

// Function to check if the checkbox is checked
function checkboxIsChecked() {
    return document.getElementById('status').checked;
}

// Function to validate form data
function validateFormData(data) {
    return data &&
           data.name &&
           data.city &&
           data.email &&
           data.dob &&
           data.gender &&
           data.password &&
           isNumber(data.zipCode) &&
           checkboxIsChecked();
}

// Form submit event listener

document.getElementById(‘submit-form’).addEventListener(‘click’, (event) => {
event.preventDefault();
submit();
});

    // Clear previous warnings
    warningDiv.innerHTML = '';

    // Get form data
    const formData = handleGetFormData();
    console.log('Form Data:', formData);

    // Validate form data
    if (validateFormData(formData)) {
        // If no errors, submit the form data (for this example, just display an alert)
        alert('Form submitted successfully!');
        // Here you can add code to actually submit the form data to the server
    } else {
        warningDiv.innerHTML = 'Periksa form anda sekali lagi';
        console.warn('Form validation failed');
    }
}

// Attach submit event listener to the form
form.addEventListener('submit', submit);

});