Sending data via AJAX using FormData in JavaScript

You can also send data to a server using FormData:

public/client.jslet formData = new FormData();

formData.set('num1', '1');
formData.set('num2', '2');

let promise = fetch('/handler/', {
  method: 'POST',
  body: formData,
});

Задание 1

Given an object with data:

javascriptlet obj = {
  a: 1,
  b: 2,
  c: 3
}

Using a loop, form a formData object from this object and send it to a server using the POST method.