Why the arr.length is equal to 5 even though the there are only two child nodes of div id demo??

Question

https://code.sololearn.com/WMb8LlMIbYpn/?ref=app

Answer 1

Plus 3 text nodes.

Answer 2

What are text nodes?

Answer 3

childNodes includes all child nodes—including non-element nodes like text and comment nodes. To get a collection of only elements, use ParentNode.children instead.