jQuery：$ .ajax（）不会触发或没有来自PHP的响应

I've just started learning jQuery and PHP, and I encountered a problem when I try to use Ajax. Either the $.ajax() function won't fire, or PHP won't return anything, I cannot tell. I must have forgotten something really stupid, I guess...

Here's the code. There's no reply, no alert, nothing.

js:

<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script>
$(document).ready(function() {

$.ajax({
    url: "get_profile.php",
    type: "GET",
    data: {},
    done: function(response) {
        alert("response");
    }
});

 });
 </script>

PHP:

<?php echo "Something"; ?>

Thanks in advance.

$.ajax({
    url: "get_profile.php",
    type: "GET",
    data: {},
    done: function(response) {
        alert("response");
    }
});

supposed to be

$.ajax({
    url: "get_profile.php",
    type: "GET",
    data: {},

}).done(function(response) {
        alert("response");
});

success , error methods are generally declared in the place where you have written done which are now deprecated

You have your done in the wrong place.

Try this instead:

$.ajax({
    url: "get_profile.php",
    type: "GET",
    data: {}
})
.done(function(response) {
        alert("response");
});

You can have alternative option for check is there any error in your ajax call. and you can also do some stuff before getting the response of your ajax call like loading image shows to end users until the response result. for this you can use following code:

$.ajax({
    url: "get_profile.php",
    type: "GET",
    data: {},
    beforeSend:function(){
        //do something like loading image
    },
    success:function(response){
        alert(response);
    },
    error:function(e){
        alert("something wrong"+e);
    }
})