getDocumentFromNode.js 217 B

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  1. 'use strict';
  2. function getDocumentFromNode(el) {
  3. return isDocument(el) ? el : el.ownerDocument;
  4. }
  5. function isDocument(node) {
  6. return node.nodeType === 9;
  7. }
  8. exports.getDocumentFromNode = getDocumentFromNode;