[Clear data from chart?]

Hello,

You can clear the data by assigning an empty item to the
DataSource, take a look at the following code:

var
items = [];
chart1.setDataSource(items);

Using arrays is a quick way of passing data to the chart,
please refer to the sample below:

var
items = [
   
{"Value": 9}, 
    {"Value":
15}, 
    {"Value":
21}, 
    {"Value":
26}, 
    {"Value":
35}

];

chart1.setDataSource(items);

I
hope this helps.