InterfacesVersion: 3.1externalDatasetMapper <Data, R>CallableDatasetMapper(item: Data, index: number): Awaitable<R>User-function used in the Dataset.map() API.Parametersexternalitem: DataCurrent Dataset entry being processed.externalindex: numberPosition of current Dataset entry.Returns Awaitable<R>
User-function used in the
Dataset.map()
API.