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Current File : /var/www/html/node_modules/@popperjs/core/lib/dom-utils/instanceOf.js.flow

// @flow
import getWindow from './getWindow';

declare function isElement(node: mixed): boolean %checks(node instanceof
  Element);
function isElement(node) {
  const OwnElement = getWindow(node).Element;
  return node instanceof OwnElement || node instanceof Element;
}

declare function isHTMLElement(node: mixed): boolean %checks(node instanceof
  HTMLElement);
function isHTMLElement(node) {
  const OwnElement = getWindow(node).HTMLElement;
  return node instanceof OwnElement || node instanceof HTMLElement;
}

declare function isShadowRoot(node: mixed): boolean %checks(node instanceof
  ShadowRoot);
function isShadowRoot(node) {
  // IE 11 has no ShadowRoot
  if (typeof ShadowRoot === 'undefined') {
    return false;
  }
  const OwnElement = getWindow(node).ShadowRoot;
  return node instanceof OwnElement || node instanceof ShadowRoot;
}

export { isElement, isHTMLElement, isShadowRoot };

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