How is fetch() different from XMLHttpRequest?


In the context of this lesson, how is fetch() different from XMLHttpRequest?


Although similar in terms of their purpose, there are some things that fetch() introduced that made it different from XMLHttpRequest.

Probably the main difference was that fetch() uses Promises. Promises made it easier and more convenient to write code for making asynchronous requests.

In addition, another difference is that with fetch(), a Promise is always returned that resolves to the request’s Response, whether or not it was successful.

Furthermore, when a Response is retrieved using fetch(), you are able to use a number of different methods to define the body content and how it should be handled.