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<!DOCTYPE html> <html> <body> <h1>The Window Object</h1> <h2>The frameElement Property</h2> <p>Click the button.</p> <p>If the window is in a frame, change its URL to "w3schools.com".</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { const frame = window.frameElement; if (frame) { frame.src = "https://www.w3schools.com/"; } } </script> </body> </html>
