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en.javascript.info/2-ui/1-document/03-dom-navigation/3-navigation-links-which-null/task.md
Ilya Kantor 508969c13f up
2017-02-28 12:54:48 +03:00

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importance: 5

The sibling question

If elem -- is an arbitrary DOM element node...

  • Is it true that elem.lastChild.nextSibling is always null?
  • Is it true that elem.children[0].previousSibling is always null ?