How to handle specific HTTP error for all AJAX calls?

Question

I have a web app, requesting and sending data via AJAX, and as a response, my server-side sends HTTP status codes, depending on the situation. so for example if a user tries to

Answer 1

You can use $.ajaxSetup() to register global error state handlers.

Description: Set default values for future Ajax requests.

Example:

$.ajaxSetup({
    statusCode: {
        500: function(data) {
            alert('Some friendly error message goes here.');
        } 
    }   
});