API Reference > ui-components > Tree > isTreeDataProviderPromise isTreeDataProviderPromise FunctionConst Checks if TreeDataProvider is a TreeDataProviderPromise isTreeDataProviderPromise(provider: TreeDataProvider): provider is TreeDataProviderPromise Parameter Type Description provider TreeDataProvider Returns - provider is TreeDataProviderPromise Defined in ui/components/src/ui-components/tree/TreeDataProvider.ts Line 102 Last Updated: 13 June, 2024