What's the advantage of using FormData for form processing?
form.addEventListener('submit', e => {
e.preventDefault();
const formData = new FormData(e.target);
const data = Object.fromEntries(formData);
// Process form data
});
FormData provides comprehensive form data handling: 1) Automatically collects all form inputs including file uploads, 2) Properly handles multiple values from checkboxes and select-multiple, 3) Works seamlessly with XMLHttpRequest and fetch for AJAX submissions, 4) Maintains proper encoding for special characters and file data, 5) Can be easily converted to JSON or other formats using Object.fromEntries(). This makes it much more reliable than manual form data collection.