deselectall doesn't work. He remains in a position of choice.

After this function, there are further operations. 
Since it is selected, errors will occur in other transactions. 
How can I deselect objects?

function stroklariFilleCevir() {
    app.executeMenuCommand('selectall');
    app.executeMenuCommand('Live Outline Stroke');
    app.executeMenuCommand('expandStyle');

    //This section doesn't work. He remains in a position of choice.
    app.executeMenuCommand('deselectall');
}