const ServerMock = {
  count: 0,
  getData() {
    if (this.count === 2) {
      return Promise.resolve([{ name: "SomeName" }]);
    } else {
      this.count++;
      return Promise.reject("Error");
    }
  }
};

function fetchData(limit, time) {
  return {
    then(resolve, reject) {
      const retry = setInterval(async () => {
        limit--;
        try {
          console.log("Trying....");
          const data = await ServerMock.getData();
          if (data) {
            console.log("Resolve");
            clearInterval(retry);
            resolve(data);
          }
        } catch {
          if (limit === 0) {
            clearInterval(retry);
            reject("Limit Reached");
          }
        }
      }, time);
    }
  };
}
// 轮询的时间为100，轮询的最大次数为3
(async () => {
  try {
    const result = await fetchData(3, 1000);
    console.log(result);
  } catch (err) {
    console.log(err);
  }
})();

const ServerMock = {
  count: 0,
  getData() {
    console.log('调用')
    if (this.count === 2) {
      return Promise.resolve([{ name: "SomeName" }]);
    } else {
      this.count++;
      return Promise.reject("Error");
    }
  }
};
const retry = (attempts, action) => {
  console.log('todo')
  const promise = action()
  return attempts > 0 ? promise.catch(() => retry(attempts - 1, action)) : promise
}

(async () => {
  let res = await retry(5, () => ServerMock.getData())
  console.log(res)
})