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<!DOCTYPE html> <html> <body> <!-- This is a comment node! --> <h1>The Element Object</h1> <h2>The keys() Method</h2> <p>Whitespace between elements are text nodes. Comments are also nodes.</p> <p>The keys of the body element's child nodes are:</p> <p id="demo"></p> <script> const list = document.body.childNodes; let text = ""; for (let x of list.keys()) { text += x + "<br>"; } document.getElementById("demo").innerHTML = text; </script> </body> </html>
