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34 lines
888 B
34 lines
888 B
10 years ago
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/**
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* Copyright 2013-2015, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule getReactRootElementInContainer
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*/
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'use strict';
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var DOC_NODE_TYPE = 9;
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/**
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* @param {DOMElement|DOMDocument} container DOM element that may contain
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* a React component
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* @return {?*} DOM element that may have the reactRoot ID, or null.
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*/
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function getReactRootElementInContainer(container) {
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if (!container) {
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return null;
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}
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if (container.nodeType === DOC_NODE_TYPE) {
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return container.documentElement;
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} else {
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return container.firstChild;
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}
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}
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module.exports = getReactRootElementInContainer;
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