Extending jQuery ajax success globally

Question

I\'m trying to create a global handler that gets called before the ajax success callback. I do a lot of ajax calls with my app, and if it is an error I return a specific st

Answer 1

You can build your own AJAX handler instead of using the default ajax:

var ns = {};
ns.ajax = function(options,callback){ 
    var defaults = {              //set the defaults
        success: function(data){  //hijack the success handler
            if(check(data)){       //checks
                callback(data);   //if pass, call the callback
            }
        }
    };
    $.extend(options,defaults);  //merge passed options to defaults
    return $.ajax(options);             //send request
}

so your call, instead of $.ajax, you now use;

ns.ajax({options},function(data){
    //do whatever you want with the success data
});