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如果你自认熟悉 async...await，来猜一下这个代码的运行结果
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姐妹篇
如果你自认熟悉 Promise，来猜一下这个代码的运行结果
要用猜的，别偷偷用浏览器运行
const Err = async () => {
throw new Error(42);
};
const Obj = {
async A (){
try {
return Err();
} catch {
console.log('A');
}
},
async B (){
try {
await Err();
} catch {
console.log('B');
}
},
async C (){
try {
Err();
} catch {
console.log('C');
}
},
};
( async () => {
for( const key in Obj )
{
try {
await Obj[key]();
} catch {
console.log('D');
}
}
} )();
第 1 条附言 · 1 天前
1. 这是标准的异步函数错误捕获，可不是茴字写法什么的
2. 回复中已经有朋友认真解答知识点，这题的目的达到了
2. 回复中已经有朋友认真解答知识点，这题的目的达到了
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