promise.all polyfill
Promise.myAll = function (promises) {
var count = promises.length
var result = new Array(count).fill(false)
return new Promise((resolve, reject) => {
var checkIfDone = () => {
if (--count === 0) resolve(result)
}
promises.forEach((promise, index) => {
promise.then( (x) => {
result[index] = x
}, reject).then(checkIfDone)
})
})
}promise.allsettled polyfill node
Promise.allSettled = function (promises) {
let mappedPromises = promises.map((p) => {
return p
.then((value) => {
return {
status: 'fulfilled',
value,
};
})
.catch((reason) => {
return {
status: 'rejected',
reason,
};
});
});
return Promise.all(mappedPromises);};Copyright © 2021 Codeinu
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