SDE2 Polyfill
Promise.allSettled() Polyfill
Problem Description & Specifications
Promsise.allSettled() - The Promise.allSettled() method returns a promise that fulfills after all of the given promises have either fulfilled or rejected, with an array of objects that each describes the outcome of each promise.
Implementation & Test Harness
Editable Monaco RunnerJavaScript Lab Sandbox
/*
Promsise.allSettled()
- The Promise.allSettled() method returns a promise that fulfills after all of the given promises have either fulfilled or rejected, with an array of objects that each describes the outcome of each promise.
*/
// Normal Working of Promise.allSettled()
function createResolvePromise(time, promiseNumber) {
return new Promise((resolve, reject) => {
setTimeout(() => {
resolve(`Promise ${promiseNumber} Resolved.`);
}, time);
})
};
function createRejectPromise(time, promiseNumber) {
return new Promise((resolve, reject) => {
setTimeout(() => {
reject(`Promise ${promiseNumber} Rejected.`);
}, time);
})
};
try {
const res = await Promise.allSettled([createResolvePromise(100, 1), createRejectPromise(200, 2)])
console.log("Response: ", res);
} catch (error) {
console.error("Error: ", error);
}Console Output
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