Function groupBy_

  • Type Parameters

    • A

    • E

    • K

    Parameters

    • self: Source<A, E>
    • keyFn: ((a: A) => K)
        • (a: A): K
        • Parameters

          • a: A

          Returns K

    • bufferSize: number = Infinity

    Returns Source<readonly [Source<A, E>, K, A], E>

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