单项选择题
A.123 B.undefined C.空 D.报错
async function testAsync1() { console.log(“hello async”...
单项选择题async function testAsync1() { console.log(“hello async”);}let result1 = testAsync1();console.log(result1); （）
A.Promise {[[PromiseStatus]]: "resolved", [[PromiseValue]]: "hello async"} B.hello async C.hello asyncPromise {[[PromiseStatus]]: "resolved", [[PromiseValue]]: undefined} D.报错
async function testAsync() { return "hello async";}let ...
单项选择题async function testAsync() { return "hello async";}let result = testAsync();console.log(result)输出结果是（）
A.Promise {[[PromiseStatus]]: "resolved", [[PromiseValue]]: "hello async"} ； B.hello async C.hello asyncPromise {[[PromiseStatus]]: "resolved", [[PromiseValue]]: undefined} D.报错
async function print(){ return 1;}print().then(e => con...
单项选择题async function print(){ return 1;}print().then(e => console.log(e)); 输出（）
A.1 B.报错 C.0 D.undefined
