When a point is hovered over, this method returns true. Otherwise, the returned value is false.
To learn more about point and series hover operation, refer to the Hover Handling topic.
Selects the point. The point is displayed in a 'selected' style until another point is selected or the current point is deselected programmatically.
The hideTooltip() and showTooltip() methods allow you to change tooltip visibility in code. Call the point's showTooltip() method to show the tooltip of this point.