Promise的API-race

 

 

 

 

 

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Promise API - race</title>
</head>
<body>
    <script>
        let p1 = new Promise((resolve, reject) => {
            setTimeout(() => {
                resolve('OK');
            }, 1000);
        })
        let p2 = Promise.resolve('Success');
        let p3 = Promise.resolve('Oh Yeah');

        //调用
        const result = Promise.race([p1, p2, p3]);

        console.log(result);
    </script>
</body>

</html>

 

posted @ 2021-06-19 23:12  juham  阅读(14)  评论(0)  编辑  收藏  举报