Asynchronous JavaScript Requests

In this lesson, you'll learn why you should use asynchronous data requests. Use the `XHR` object to send and receive data asynchronously.

In this lesson, you'll compare using `XHR` with using jQuery's Ajax method. You'll send and receive data using jQuery's Ajax methods and learn how jQuery's Ajax works under the hood.

In this lesson, you'll use JavaScript Promises to create a fetch request and handle the returned data asynchronously. You'll also learn how to handle errors for failed requests.