ble watch
                    readOnly        : true,
                    styleActiveLine : false,   // disable active line
                    //lineNumbers     : false      // hide line numbers
                });

                $("#watch-btn").click(function(){
                    testEditor.watch();
                });

                $("#unwatch-btn").click(function(){
                    testEditor.unwatch();
                });
            });
        </script>
    </body>
</html>
