Promise.race

1. Promise.race的使用：

 1 const promise1 = new Promise((resolve, reject) => {
 2     setTimeout(resolve, 500, 'one');
 3 });
 4 const promise2 = new Promise((resolve, reject) => {
 5     setTimeout(resolve, 100, 'two');
 6 });
 7 Promise.race([promise1, promise2]).then((value) => {
 8     console.log(value);
 9 })
10 
11 //输出结果：two

2. Promise.race的实现：

 

posted @ 2022-10-19 13:54  icyyyy  阅读(85)  评论(0)    收藏  举报