24 lines
704 B
JavaScript
24 lines
704 B
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/**
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* Given an array of promise creators, executes them in a sequence.
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*
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* If any of the promises in the chain fails, all subsequent promises
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* will be skipped
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*
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* Returns the value last promise from a sequence resolved
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*/
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module.exports = function promiseWaterfall(tasks) {
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return tasks.reduce(
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(prevTaskPromise, task) => prevTaskPromise.then(task),
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Promise.resolve()
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);
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};
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