如何获得函数名称

Question

I have a ajax function which will call a function if its error and this error will call a function which displays the error message. here is the code

function Update_uam() {
    $.ajax({
        type: "POST",
        url: "IROA_StoredProcedures.asmx/update_uam1",
        data: "",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function () {
            console.log(tbody);
        },
        error: errorHandler
    });
}

function errorHandler(XMLHttpRequest) {
    console.log(errorHandler.caller.caller);
    console.log(XMLHttpRequest);
}

I tried several ways but seems to failed. What I want to do is also displays which function the error comes from for easy debugging.

Answer 1

I think you should use :

function Update_uam() {
    $.ajax({
        type: "POST",
        url: "IROA_StoredProcedures.asmx/update_uam1",
        data: "",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function () {
            console.log(tbody);
        },

        error: function (jqXHR, exception) {
            var msg = '';
            if (jqXHR.status === 0) {
                msg = 'Not connect.
 Verify Network.';
            } else if (jqXHR.status == 404) {
                msg = 'Requested page not found. [404]';
            } else if (jqXHR.status == 500) {
                msg = 'Internal Server Error [500].';
            }
            $('#post').html(msg);
        },
    });