Showing in progress in a full AJAX application when we don't know where the new content will be placed

1. How do I know when AJAX calls are complete?
2. How do I know if AJAX request is successful?
3. What are the 4 steps of an AJAX request?

How do I know when AJAX calls are complete?

The ajaxStop() method specifies a function to run when ALL AJAX requests have completed. When an AJAX request completes, jQuery checks if there are any more AJAX requests. The function specified with the ajaxStop() method will run if no other requests are pending.

How do I know if AJAX request is successful?

You can check when exactly it returns "success" : // If successful, handle type chaining if ( status >= 200 && status < 300 || status === 304 ) ... // If not modified if ( status === 304 ) statusText = "notmodified"; ... // If we have data else try ...

What are the 4 steps of an AJAX request?

Steps of AJAX Operation

A client event occurs. An XMLHttpRequest object is created. The XMLHttpRequest object is configured. The XMLHttpRequest object makes an asynchronous request to the Webserver.