马老师数据结构与算法

const reject = (reason) => {      this.#status = 'rejected';      const f1f2 = this.queue.shift();      if (!f1f2 || !f1f2[1]) return;      const x = f1f2[1].call(undefined, reason);      if (x instanceof Promise2) {        x.then(data => resolve(data), reason => reject(reason));      } else {        resolve(x);      }