17 lines
458 B
JavaScript
17 lines
458 B
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* strict
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*/
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/**
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* Returns true if the value acts like a Promise, i.e. has a "then" function,
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* otherwise returns false.
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*/
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// eslint-disable-next-line no-redeclare
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export default function isPromise(value) {
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return Boolean(value && typeof value.then === 'function');
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} |