函数 mapAsync

  • mapAsync<T, R>(arr, cbAsync): Promise<R[]>

  • map异步回调版

    类型参数

    • T
    • R

    参数

    • arr: ArrayLike<T>
    • cbAsync: ((value: T, index: number, array: ArrayLike<T>) => Promise<R>)
        • (value, index, array): Promise<R>

        • 参数

          • value: T
          • index: number
          • array: ArrayLike<T>

          返回 Promise<R>

    返回 Promise<R[]>

    示例

    const asyncList = [
      async () => {
        await sleep(200);
        return 1;
      },
      async () => {
        await sleep(300);
        return 2;
      },
      async () => {
        await sleep(10);
        return 3;
      },
    ];
    const res = await fn(asyncList, (v) => v());
    console.log(res); // [1, 2, 3]