API Reference > geometry-core > ArraysAndInterfaces > IndexedXYCollection > getVector2dAtCheckedVectorIndex getVector2dAtCheckedVectorIndex MethodAbstract Get from index as a Vector2d getVector2dAtCheckedVectorIndex(index: number, result?: Vector2d): undefined | Vector2d Parameter Type Description index number index of point within the array result Vector2d optional caller-allocated destination Returns - undefined | Vector2d undefined if the index is out of bounds Defined in geometry3d/IndexedXYCollection.ts Line 38 Last Updated: 11 June, 2024