Abort Controller

• To cancel an ongoing fetch request.

• Create a controller: const controller = new AbortController().

• When abort() is called, controller.signal emits the "abort" event, and the controller.signlar.aborted property becomes true.

• You would pass controller.signal as an option to fetch (signal option)

• To abort you would call controller.abort() to cancel the request.

• An error will be thrown with the name AbortError.

• Also scalable, you can abort multiple fetches at the same time if they use the same signal.