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53 lines
1.4 KiB
JavaScript
53 lines
1.4 KiB
JavaScript
// Copyright (C) 2020 Rick Waldron. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-promise.any
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description: >
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Resolved promises ignore rejections through immediate invocation of the
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provided resolving function
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info: |
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Let result be PerformPromiseAny(iteratorRecord, C, promiseCapability).
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Runtime Semantics: PerformPromiseAny
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...
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Let remainingElementsCount be a new Record { [[value]]: 1 }.
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...
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8.d ...
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ii. Set remainingElementsCount.[[value]] to remainingElementsCount.[[value]] − 1.
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iii. If remainingElementsCount.[[value]] is 0,
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1. Let error be a newly created AggregateError object.
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2. Perform ! DefinePropertyOrThrow(error, "errors", Property Descriptor { [[Configurable]]: true, [[Enumerable]]: false, [[Writable]]: true, [[Value]]: errors }).
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3. Return ThrowCompletion(error).
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...
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Promise.any Reject Element Functions
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...
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Let alreadyCalled be the value of F's [[AlreadyCalled]] internal slot.
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If alreadyCalled.[[value]] is true, return undefined.
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Set alreadyCalled.[[value]] to true.
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...
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flags: [async]
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features: [Promise.any, arrow-function]
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---*/
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let fulfiller = {
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then(resolve) {
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resolve();
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}
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};
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let lateRejector = {
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then(resolve, reject) {
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resolve();
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reject();
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}
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};
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Promise.any([fulfiller, lateRejector])
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.then(() => {
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$DONE();
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}, () => {
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$DONE('The promise should not be rejected.');
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});
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