Function _reduce

  • Reduce array or object by appling function

    For each element, provided function is called with accumulator, elements value, element index/key and original container.

    Type Parameters

    • T1

    • T2

    Parameters

    • fn: ((acc: T2, val: T1, index?: number, arr?: T1[]) => T2)
        • (acc: T2, val: T1, index?: number, arr?: T1[]): T2
        • Parameters

          • acc: T2
          • val: T1
          • Optional index: number
          • Optional arr: T1[]

          Returns T2

    • val: T2
    • arr: T1[]

    Returns T2

  • Type Parameters

    • T1

    • T2

    Parameters

    • fn: ((acc: T2, val: T1, key?: string, obj?: Record<string, T1>) => T2)
        • (acc: T2, val: T1, key?: string, obj?: Record<string, T1>): T2
        • Parameters

          • acc: T2
          • val: T1
          • Optional key: string
          • Optional obj: Record<string, T1>

          Returns T2

    • val: T2
    • obj: Record<string, T1>

    Returns T2

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