hitTestInput method Null safety

DisplayObject? hitTestInput(
  1. num localX,
  2. num localY

Evaluates this display object to see if the coordinates localX and localY are inside this display object.

If the coordinates are inside, this display object is returned; null otherwise.

localX and localY are relative to to the origin (0,0) of this display object (local coordinates).


DisplayObject? hitTestInput(num localX, num localY) =>
    bounds.contains(localX, localY) ? this : null;