• Input a single value to the chain, return a single result

    // Create chain link
    const f = Chains.Links.flatten<string, string>(data => data.join(`-`));
    // Input a single value (an array)
    const r1 = await Chains.single(f, [ `a`, `b`, `c` ]);
    // r1 = `a-b-c`

    Type Parameters

    • In
    • Out

    Parameters

    Returns Promise<Out | undefined>