<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>await/async案例笔记</title>
</head>
<body>
<script type="text/javascript">
function delayGetTime() {
return new Promise((resolve, reject) => {
setTimeout(() => {
resolve(Date.now())
}, 2000)
})
}
async function syncTest() {
let result = [];
result.push(await delayGetTime())
result.push(await delayGetTime())
return result
}
(async () => {
console.log(1)
console.log(await syncTest());
console.log(2)
delayGetTime().then(t => console.log(t));
console.log(3)
})();
</script>
</body>
</html>
