30 lines
902 B
Plaintext
30 lines
902 B
Plaintext
// @flow
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import getWindow from './getWindow';
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declare function isElement(node: mixed): boolean %checks(node instanceof
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Element);
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function isElement(node) {
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const OwnElement = getWindow(node).Element;
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return node instanceof OwnElement || node instanceof Element;
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}
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declare function isHTMLElement(node: mixed): boolean %checks(node instanceof
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HTMLElement);
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function isHTMLElement(node) {
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const OwnElement = getWindow(node).HTMLElement;
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return node instanceof OwnElement || node instanceof HTMLElement;
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}
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declare function isShadowRoot(node: mixed): boolean %checks(node instanceof
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ShadowRoot);
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function isShadowRoot(node) {
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// IE 11 has no ShadowRoot
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if (typeof ShadowRoot === 'undefined') {
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return false;
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}
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const OwnElement = getWindow(node).ShadowRoot;
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return node instanceof OwnElement || node instanceof ShadowRoot;
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}
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export { isElement, isHTMLElement, isShadowRoot };
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