API Reference > presentation-common > Hierarchies > NodeKey > NodeKey.isPropertyGroupingNodeKey NodeKey.isPropertyGroupingNodeKey Function Checks if the supplied key is an ECPropertyGroupingNodeKey isPropertyGroupingNodeKey(key: NodeKey): key is ECPropertyGroupingNodeKey Parameter Type Description key NodeKey Returns - key is ECPropertyGroupingNodeKey Defined in presentation/common/src/presentation-common/hierarchy/Key.ts Line 54 Last Updated: 11 June, 2024