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<!DOCTYPE html> <html> <body> <h1>The Document Object</h1> <h2>The createComment() Method</h2> <p id="demo"></p> <script> const comment = document.createComment("My personal comments"); document.body.appendChild(comment); document.getElementById("demo").innerHTML = "A comment was added to this document, but as you know, comments are invisible."; </script> </body> </html>
