单项选择题
A.await Promise.reject（’出错了’）；此语句不会执行 B.await Promise.resolve（’hello world’）；语句不会执行 C.整个代码执行报错 D.整个代码都不会执行
async function f() { return await 123;}f().then(v => co...
单项选择题async function f() { return await 123;}f().then(v => console.log(v))打印结果是（）
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
