Working with Checkboxes, Radio Buttons, and Dropdowns

What advantage does FormData provide for handling multiple selections?

const form = document.querySelector('form');
form.addEventListener('submit', e => {
  const data = new FormData(form);
  const selected = data.getAll('options[]');
});

Better performance
Automatic array handling
FormData provides automatic handling of multiple form control values. Benefits: 1) Automatically collects all selected values from checkboxes or multi-select with the same name, 2) Handles the array notation in names (options[]) correctly, 3) Works seamlessly with URLSearchParams for API requests, 4) Maintains proper encoding of special characters, 5) Integrates well with fetch API. This makes it much more reliable than manual form data collection, especially for multiple selections.
Form validation
Data encryption

Next Question (17/22)