针对特定事件的ajaxStop

I read this question but it did not help much because of success:function. it do not understand completion of Ajax response. Do anyone know how to use Ajax stop for specific events ?

Detail : I have an Ajax code which sends a request and I want it to do something when it gets a response. I do that by the following function but it gets all documents of Ajax and I cant add any Ajax to the page.

$(document).ajaxStop(function() {
                ....;
                alert("start");
});

ajaxStop is meant to be used for a global AJAX completion behavior. You probably want to use a regular complete handler:

$.ajax({
  url: "some/path.php",
  complete: function() { alert("start"); }
});

or alternatively you can use the always promise method:

$.ajax({
  url: "http://fiddle.jshell.net/favicon.png",
}).always(function() {
  alert("start");
});

UPDATE:

Looking at your comments below, you might actually want to use success (especially when you are interested in the response:

$.ajax({
  url: "some/path.php",
  success: function(response) { alert(response); }
});

or alternatively you can use the done promise method:

$.ajax({
  url: "http://fiddle.jshell.net/favicon.png",
}).done(function(response) {
  alert(response);
});

However, it is important to note that both of those methods only execute when you receive a successful response from the server (status code 200).