Baseline Widely available
Promise.allSettled()
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¥åã¨ãã¦ãããã¹ã®å復å¯è½ãªãã¸ã§ã¯ããåãåããåä¸ã® Promise
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const promise1 = Promise.resolve(3);
const promise2 = new Promise((resolve, reject) =>
setTimeout(reject, 100, "foo"),
);
const promises = [promise1, promise2];
Promise.allSettled(promises).then((results) =>
results.forEach((result) => console.log(result.status)),
);
// Expected output:
// "fulfilled"
// "rejected"
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Promise.allSettled(iterable)
弿° è¿å¤
次ã®ãã㪠Promise
ã§ãã
status
æååã§ã "fulfilled"
ï¼å±¥è¡ï¼ã¾ã㯠"rejected"
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value
status
ã "fulfilled"
ã®å ´åã®ã¿åå¨ãã¾ãããããã¹ãå±¥è¡ãããå¤ã§ãã
reason
status
ã "rejected"
ã®å ´åã®ã¿åå¨ãã¾ãããããã¹ãæå¦ãããçç±ã§ãã
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解説Promise.allSettled()
ã¡ã½ããã¯ãããã¹ã®ä¸¦è¡å¦ç ã¡ã½ããã® 1 ã¤ã§ããPromise.allSettled()
ã¯ãéå¸¸ãæ£å¸¸ã«å®äºããããã«äºãã«ä¾åããªãè¤æ°ã®éåæã¿ã¹ã¯ãããå ´åãã¾ãã¯åãããã¹ã®çµæã常ã«ç¥ãããå ´åã«ä½¿ç¨ããã¾ãã
ã¡ã¢: æ¥æ¬èªã®æè¡ææ¸ã§ã¯ããã®ã¡ã½ãããè¤æ°ã®ãããã¹ã並åã«å¦çããã¨èª¬æããããã¨ãããã¾ãããå®éã«ã¯è¤æ°ã®ã¹ã¬ããã§ãããã¹ãå¦çãããããã§ã¯ãªããã¨ã«æ³¨æãã¦ãã ããã詳細ã¯ãããã¹ã®ä¸¦è¡å¦çãåç §ãã¦ãã ããã
ããã«å¯¾ãã¦ã Promise.all()
ãè¿ããããã¹ã¯ãã¿ã¹ã¯ãä»ã«ãä¾åãã¦ããå ´åããã©ãããæå¦ããããããã«æå¦ãããå ´åã«ããé©ãã¦ããããããã¾ããã
Promise.allSettled([
Promise.resolve(33),
new Promise((resolve) => setTimeout(() => resolve(66), 0)),
99,
Promise.reject(new Error("an error")),
]).then((values) => console.log(values));
// [
// { status: 'fulfilled', value: 33 },
// { status: 'fulfilled', value: 66 },
// { status: 'fulfilled', value: 99 },
// { status: 'rejected', reason: Error: an error }
// ]
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