Ajax success function

Question

I am using an Ajax post to submit form data to the server, be validated and then return a message based on whether or not the data was valid and could be stored. My success

Answer 1

The answer given above can't solve my problem.So I change async into false to get the alert message.

jQuery.ajax({
            type:"post",
            dataType:"json",
            async: false,
            url: myAjax.ajaxurl,
            data: {action: 'submit_data', info: info},
            success: function(data) {
                alert("Data was succesfully captured");
            },
        });