0675dd924d
Reviewed By: passy Differential Revision: D17863711 fbshipit-source-id: 259dc77826fb803ff1b88c88529d7f679d3b74d8
15 lines
419 B
TypeScript
15 lines
419 B
TypeScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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* @format
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*/
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// Typescript doesn't know Array.filter(Boolean) won't contain nulls.
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// So use Array.filter(notNull) instead.
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export function notNull<T>(x: T | null | undefined): x is T {
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return x !== null && x !== undefined;
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}
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