es6 生成器实例

生成器实例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>生成器实例</title>

</head>
<body>
<div id="ad">

</div>
<div></div>
<script>


    //模拟获取数据   用户数据 订单数据 商品数据


    function getUsers() {
        setTimeout(()=>{
            let data = '用户数据';
            iterator.next(data);
        },1000);
    }

    function getOrders() {
        setTimeout(()=>{
            let data = '订单数据';
            iterator.next(data);
        },2000);
    }

    function getGoods() {
        setTimeout(()=>{
            let data = '商品数据';
            iterator.next(data);
        },3000);
    }

    //生成器
    function * gen() {
        let users = yield getUsers();
        console.log(users);
        let orders = yield getOrders();
        console.log(orders);
        let goods = yield getGoods();
        console.log(goods);
    }

    //调用
    let iterator = gen();
    iterator.next();

</script>
</body>
</html>
posted @ 2021-06-21 11:56  胡勇健  阅读(40)  评论(0)    收藏  举报