如何从(Mypromise)访问之前的第一个有效负载

class MyPromise {
  constructor(executor) {
    this.state = 'pending';
    this.value = undefined;
    this.history = []; // 存储历史记录
    const resolve = (value) => {
      if (this.state !== 'pending') return;
      this.state = 'fulfilled';
      this.value = value;
      this.history.push({ state: 'fulfilled', value });
    };
    const reject = (reason) => {
      if (this.state !== 'pending') return;
      this.state = 'rejected';
      this.value = reason;
      this.history.push({ state: 'rejected', value: reason });
    };
    try {
      executor(resolve, reject);
    } catch (error) {
      reject(error);
    }
  }

  then(onFulfilled, onRejected) {
    // ... 实现 then 方法
  }

  catch(onRejected) {
    // ... 实现 catch 方法
  }

  // 新增方法，用于获取历史记录
  getHistory() {
    return this.history;
  }
}

// 使用示例
const promise = new MyPromise((resolve, reject) => {
  setTimeout(() => resolve('First payload'), 1000);
  setTimeout(() => resolve('Second payload'), 2000);
});

promise.then((value) => {
  console.log('Current payload:', value);
  console.log('History:', promise.getHistory());
});

// 注意：这个示例仅用于演示目的，实际的 Promise 实现会更复杂。