Features API Reference

constructAggregationFn

function constructAggregationFn<TFeatures, TData, TValue, TResult>(definition): AggregationFnDef<TFeatures, TData, TValue, TResult>;

function constructAggregationFn<TFeatures, TData, TValue, TResult>(definition): AggregationFnDef<TFeatures, TData, TValue, TResult>;

Creates a typed context-based aggregation definition for a column or aggregation-function registry.

Type Parameters

TFeatures extends TableFeatures = any

TData extends RowData = any

TValue = unknown

TResult = unknown

AggregationFnDef<TFeatures, TData, TValue, TResult>

AggregationFnDef<TFeatures, TData, TValue, TResult>