Function setDatasets

src/utils.ts:46–81

(
  currentData: ChartData<TType, TData, TLabel>,
  nextDatasets: ChartDataset<TType, TData>[],
  datasetIdKey = defaultDatasetIdKey
)

}

export function setDatasets<
  TType extends ChartType = ChartType,
  TData = DefaultDataPoint<TType>,
  TLabel = unknown,
>(
  currentData: ChartData<TType, TData, TLabel>,
  nextDatasets: ChartDataset<TType, TData>[],
  datasetIdKey = defaultDatasetIdKey
) {
  const addedDatasets: ChartDataset<TType, TData>[] = [];

  currentData.datasets = nextDatasets.map(
    (nextDataset: Record<string, unknown>) => {
      // given the new set, find it's current match
      const currentDataset = currentData.datasets.find(
        (dataset: Record<string, unknown>) =>
          dataset[datasetIdKey] === nextDataset[datasetIdKey]
      );

      // There is no original to update, so simply add new one
      if (
        !currentDataset ||
        !nextDataset.data ||
        addedDatasets.includes(currentDataset)
      ) {
        return { ...nextDataset } as ChartDataset<TType, TData>;
      }

      addedDatasets.push(currentDataset);

      Object.assign(currentDataset, nextDataset);

      return currentDataset;
    }
  );
}

export function cloneData<
  TType extends ChartType = ChartType,