[英]Javascript - async function in async function doesn't wait for answer?
async function in async function doesn't wait?异步 function 中的异步 function 不等待?
// onConfirmed executes after confirming on modal
onConfirmed={async () => {
const res = await submit(submitData) // post data and return some data
if (!res.error) {
const resFb= await Fb(data)
console.log(resFb) // ***execute it before waiting "await Fb(data)"
} else {
// handle error
}
}}
//Fb function
export const Fb = async (data) => {
const body = {
method: 'share',
href: 'https://hogehoge',
display: 'popup',
hashtag: '#hogehoge',
quote: `content: ${data.content}`,
}
return FB.ui(body, async (res) => {
if (res !== undefined && !res.error_code) {
return await Api.put(body) // put to own server (executes here without problem)
} else {
return res
}
})
}
facebook SDK (FB.ui()) facebook SDK (FB.ui())
I need to get proper value of resFb which waits for async function.我需要获取等待异步 function 的 resFb 的正确值。
FB.ui()
does not return a promise, so the promise returned by Fb()
will resolve immediately, and the callback passed to FB.ui
will still execute later... FB.ui()
没有返回 promise,所以Fb()
返回的 promise 会立即解析,传递给FB.ui
的回调稍后仍会执行...
To return a promise that only resolves when that callback is executed, promisify FB.ui
:要返回仅在执行该回调时才解析的 promise,请承诺
FB.ui
:
export const Fb = (data) => {
const body = {
method: 'share',
href: 'https://hogehoge',
display: 'popup',
hashtag: '#hogehoge',
quote: `content: ${data.content}`,
};
return new Promise(resolve =>
FB.ui(body, res =>
resolve(!res?.error_code ? Api.put(body) : res)
)
);
}
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