AJAX jQuery返回消息？

Question

I have this AJAX call

$(function() {
    $("button#submit").click(function(){
               $.ajax({
                   type: "POST",
            url: "process.php",
            data: $("form.contact").serialize(),
                success: function(msg){
                    $(".alert-success").toggle();
                    $("#form-content").modal("hide");    
                },
            error: function(){
                $(".alert-error").toggle();
                }
                  });
    });
});

The problem is that in process.php i only have

echo "OK";

In console i see resposne but not on page, what can be problem?

Answer 1

You get msg as result of ajax call but you don't use it anywhere. You can use it inside success for example:

$(function() {
    $("button#submit").click(function(){
               $.ajax({
                   type: "POST",
            url: "process.php",
            data: $("form.contact").serialize(),
                success: function(msg){
                    $(".alert-success").toggle();
                    $("#form-content").modal("hide");
                    //console.log(msg); to get the result in console for example
                },
            error: function(){
                $(".alert-error").toggle();
                }
                  });
    });
});