Function: column_getAutoAggregationFn()#

function column_getAutoAggregationFn<TFeatures, TData, TValue>(column): 
  | AggregationFn<TFeatures, TData>
  | undefined;

Defined in: features/column-grouping/columnGroupingFeature.utils.ts:149

Chooses a built-in aggregation function from the first core row value.

Numeric columns default to sum, date-like values default to extent, and other value types leave aggregation unspecified.

Type Parameters#

TFeatures#

TFeatures extends TableFeatures

TData#

TData extends RowData

TValue#

TValue extends unknown = unknown

Parameters#

column#

Column_Internal\<`TFeatures`, `TData`, `TValue`\>

Returns#

| AggregationFn\<`TFeatures`, `TData`\> | undefined

Example#

const aggregationFn = column_getAutoAggregationFn(column)