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9 lines
380 B
JavaScript
9 lines
380 B
JavaScript
// run `fn` in serie for all values, and resolve with an array of the resultss
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// inspired by https://stackoverflow.com/a/50506360/1314820
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export function mapSeries(values, fn) {
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return values.reduce((promiseChain, value) => {
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return promiseChain.then(chainResults =>
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fn(value).then(currentResult => [...chainResults, currentResult])
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)
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}, Promise.resolve([]))
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}
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