react/packages/shared/ExecutionEnvironment.js

15 lines
377 B
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
*/
export const canUseDOM: boolean = !!(
typeof window !== 'undefined' &&
typeof window.document !== 'undefined' &&
typeof window.document.createElement !== 'undefined'
);