Promise的all方法中网络请求有一个失效的解决办法

方法一

参考链接

const reflect = p => p.then(v => ({v, status: "fulfilled" }),
                            e => ({e, status: "rejected" }));

reflect(promise).then((v => {
    console.log(v.status);
});

方法二

参考链接

const a = Promise.resolve(1);
const b = Promise.reject(new Error(2));
const c = Promise.resolve(3);

Promise.all([a, b, c].map(p => p.catch(e => e)))
  .then(results => console.log(results)) // 1,Error: 2,3
  .catch(e => console.log(e));


const console = { log: msg => div.innerHTML += msg + "<br>"};