Return Value from inside of $.ajax() function

Question

How do I return a value from inside of an $.ajax function?

This is my basic setup:

function something(){
 var id = 0;
 $.ajax({
        'url':'/some/url',
        'type':'GET',
        'data':{'some':'data'},
        'success':function(data){
                     id = data['id'];
         }
   });

  return id;
}

Answer 1

In addition to using a callback function as others have pointed out, another option would be to change it to a synchronous request:

function something(){
 var id = 0;
 $.ajax({
        'url':'/some/url',
        'type':'GET',
        'async':false,
        'data':{'some':'data'},
        'success':function(data){
                     id = data['id'];
         }
   });

  return id;
}

Keep in mind that a synchronous call is a blocking call while the request is active.