FormDataEvent()

new FormDataEvent(type);
new FormDataEvent(type, formEventInit);

### Values

- `type`
  - : A DOMString representing the name of the event.
- `formEventInit` Optional

  - : A `FormEventInit` dictionary, which can take the following optional
    fields:

    - `bubbles`: a `true` or `false` value indicating whether the event
      bubbles. The default is `false`.
    - `cancelable`: a `true` or `false` value indicating whether the event
      can be cancelled. The default is `false`.
    - `composed`: a `true` or `false` value indicating whether the event will
      trigger listeners outside of a shadow root (see Event.composed for
      more details). The default is `false`.
    - `formData`: A FormData object to pre-populate the
      FormDataEvent with. This would then be accessed through the
      FormDataEvent.formData property.

## Examples

```js
let fd = new FormData();
fd.append('test', 'test');

let fdEv = new FormDataEvent('formdata', { formData: fd });

for (let value of fdEv.formData.values()) {
  console.log(value);
}