mirror of
https://github.com/facebook/react.git
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44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
/**
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* Copyright 2013 Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @providesModule ExecutionEnvironment
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*/
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/*jslint evil: true */
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"use strict";
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var canUseDOM = typeof window !== 'undefined';
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/**
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* Simple, lightweight module assisting with the detection and context of
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* Worker. Helps avoid circular dependencies and allows code to reason about
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* whether or not they are in a Worker, even if they never include the main
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* `ReactWorker` dependency.
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*/
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var ExecutionEnvironment = {
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canUseDOM: canUseDOM,
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canUseWorkers: typeof Worker !== 'undefined',
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isInWorker: !canUseDOM, // For now, this is true - might change in the future.
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global: new Function('return this;')()
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};
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module.exports = ExecutionEnvironment;
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