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<!DOCTYPE html> <html> <body> <h1>The Document Object</h1> <h2>The open() and close() Methods</h2> <p>Click "Open" to open a document in a new window, write some text to it and close it:</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { const myWindow = window.open(); myWindow.document.open(); myWindow.document.write("<h1>Hello World!</h1>"); myWindow.document.close(); } </script> </body> </html>
