15 lines
348 B
JavaScript
15 lines
348 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 a value is undefined, or NaN.
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*/
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export default function isInvalid(value) {
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return value === undefined || value !== value;
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} |