Function reduceByKey

reduceByKey<S extends Record<string | number | symbol, any>, T>(
    subject: S,
    callbackfn: (
        previousValue: T,
        key: keyof S,
        currentIndex: number,
        array: string[],
        subject: S,
    ) => T,
    initialValue: T,
): T
Type Parameters
- S extends Record<string | number | symbol, any>
- T
Parameters
- subject: S
- callbackfn: (
      previousValue: T,
      key: keyof S,
      currentIndex: number,
      array: string[],
      subject: S,
  ) => T
- initialValue: T
Returns T
- Defined in packages/type-plus/src/object/reduceKey.ts:3