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Back to Basics: Running Promises in Serial with Array.reduce()

decembersoft.com
2018-09-28T21:38:07.000Z
javascript promises imported:pinboard

Notes

const tasks = getTaskArray();return tasks.reduce((promiseChain, currentTask) => { return promiseChain.then(chainResults => currentTask.then(currentResult => [ ...chainResults, currentResult ] ) );}, Promise.resolve([])).then(arrayOfResults => { // Do something with all results});

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ES6 Promises in Depth

ponyfoo.com
2015-10-01T16:56:36.000Z
promises es6 javascript webdev imported:pinboard

Notes

Promises are a very involved paradigm, so we’ll take it slow.

Feed

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{ "author": "Nicolás Bevacqua", "date": "2018-12-19T20:57:41.454Z", "description": "Welcome back to ES6 – “Dude, we already had those!” – in Depth series. If you’ve never been around here before, start with A Brief …", "image": "https://i.imgur.com/AJCnopB.png", "logo": "https://ponyfoo.com/favicon-194x194.png", "publisher": "Pony Foo", "title": "ES6 Promises in Depth", "url": "https://ponyfoo.com/articles/es6-promises-in-depth", "feed": "https://feeds.feedburner.com/ponyfoo", "lang": "en", "failed": true, "failedAt": 1728193566970, "failedError": "TimeoutError: Promise timed out after 10000 milliseconds", "cached": true, "cachedAt": 1728193568185 }

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