How to end both audio and video

Meeting SDK
1

I am using Zoom WEB SDK version 2.14. Please i will like to know how to end the audio and video. I have tried the code below but it did not work

                            ZoomMtg.stopVideo({
                                success: function (res) {
                                    //console.log('Video stopped successfully');
                                },
                                error: function (res) {
                                    //console.log(res);
                                }
                            });

But it is not working.