hide()

• Chart should be rendered before you can use hide method.
• hide method can be used to sync toolTip across multiple charts in a page.
• If you interact with chart after hiding, toolTip shows up again. So, the hiding is not permanent.

var chart = new  CanvasJS.Chart("container",
{
 .
 .
 toolTip: {
   // toolTip properties
 },
 .
 . 
});
chart.render();
chart.toolTip.hide();