生成器函数实例二

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<script>
// 模拟获取 用户数据 订单数据 商品数据
function getUsers(){
setTimeout(()=>{
let data = '用户数据';
// 调用next 将数据传入
iterator.next(data);
},1000)
}
function getOrders(){
setTimeout(()=>{
let data = '订单数据';
iterator.next(data);
},1000)
}
function getGoods(){
setTimeout(()=>{
let data = '商品数据';
iterator.next(data);
},1000)
}


function * gen(){
let users = yield getUsers();
console.log(users);
let orders = yield getOrders();
console.log(orders);
let goods = yield getGoods();
console.log(goods);
}
// 调用生成器函数
let iterator = gen();
iterator.next();
</script>
</body>
</html>

posted @ 2020-08-18 23:45  Smile*^  阅读(84)  评论(0)  编辑  收藏  举报