How to use jquery ajax in mvc

<script>
    
    var _url = '@Url.Action("ControllerName", "ActionName")'; // url of the action
    var _parameters = {parameterName: "somevalue"};

    $.ajax({
        type: "POST",
        url: _url,
        contentType: "application/json; charset=utf-8",
        data: _parameters,
        dataType: "json",
        success: function (data) {
            // data - contains the return value from the action
            alert('Success');
        },
        error: function (data) {
            // data - contains the stack trace for the error
            alert('failure');
        }
    });


</script>