Arguments for the zoom event.

axisRanges {[name: string]: AxisRange}

A dictionary which contains the range (min and max values) of named axes. The axis name is used as a key.

The dictionary includes only the affected axis ranges. If an axis is locked or its range is not modified, the axis will not be listed.

delta number

A number that indicates the zoom amount and direction. A negative value indicates a zoom-in action. A positive value indicates a zoom-out action.

nativeEvent any

The original user event that triggered the drag action.

target Charts

The Chart component that triggered the event.



Returns true if the event was prevented by any of its subscribers.


boolean true if the default action was prevented. Otherwise, returns false.


Prevents the default action for a specified event. In this way, the source component suppresses the built-in behavior that follows the event.