【Promise第36题】下面代码的输出是什么？

async function async1 () { await async2(); console.log('async1'); return 'async1 success' } async function async2 () { return new Promise((resolve, reject) => { console.log('async2') reject('error') }) } async1().then(res => console.log(res))

## 参考答案：

'async2' Uncaught (in promise) error