The JavaScript exception "No Promise in Promise.any was resolved" occurs when all promises passed to Promise.any()
are rejected. It is the only built-in usage of AggregateError
.
AggregateError: All promises were rejected (V8-based) AggregateError: No Promise in Promise.any was resolved (Firefox) AggregateError (Safari)Error type What went wrong?
Promise.any()
only rejects when all promises passed to it are rejected. You should access errors
to get the array of rejection reasons. See Using promises for more information on how to handle asynchronously rejected promises. This error is also raised when Promise.any()
receives an empty iterable.
Promise.any([]).catch((error) => {
console.error(error); // AggregateError: No Promise in Promise.any was resolved
});
Handling all rejections
const promises = [
fetch("/data-location1"),
fetch("/data-location1"),
fetch("/data-location1"),
];
Promise.any(promises)
.then((value) => console.log(value))
.catch((error) => {
// None of the fetches were successful
for (const e of error.errors) {
console.error(e);
}
});
// Using await
async function fetchFirstSuccessful() {
try {
const value = await Promise.any(promises);
console.log(value);
} catch (error) {
for (const e of error.errors) {
console.error(e);
}
}
}
See also
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4