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JavaScript Promise.allSettled() 方法


示例

// 创建一个 Promise
const myPromise1 = new Promise((resolve, reject) => {
  setTimeout(resolve, 200, "King");
});

// 创建另一个 Promise
const myPromise2 = new Promise((resolve, reject) => {
  setTimeout(resolve, 100, "Queen");
});

// Settle All
Promise.allSettled([myPromise1, myPromise2]).then((results) =>
  results.forEach((x) => myDisplay(x.status)),
);
亲自试一试 »

描述

Promise.allSettled() 方法返回一个 Promise 列表中的单个 Promise,当列表中的所有 Promise 都已设置时。


语法

Promise.allSettled(iterable)

参数

iterable 一个 Promise 数组

返回值

类型 描述
对象 一个新的 Promise 对象


浏览器支持

Promise.allSettled() 自 2020 年 3 月起,所有现代浏览器均支持此方法:

Chrome 76 Edge 79 Firefox 71 Safari 13 Opera 63
2019年5月 2019年11月 2020年3月 2019年9月 2019年8月

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