get TouchPoint from MultiPointTouchArea

[Mihaill]

Hi!
I have MultiPointTouchArea and I want get TouchPoint.
It's work:

multiPointTouchAreaMap2D.touchPoints

But it's return undefined. How I can get TouchPoint ?

multiPointTouchAreaMap2D.touchPoints.lenght
or
multiPointTouchAreaMap2D.touchPoints.[0]

[Mihaill]

Sorry, I'm not add

                touchPoints: [
                    TouchPoint { id: touchPoint1 },
                    TouchPoint { id: touchPoint2 }
                ]