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<!DOCTYPE html> <html> <head> <title>Let's Coding Example</title> </head> <body> <div id="html-div"> </div> <script> let text = "Hello, World!"; console.log(text.toUpperCase()); // Outputs: HELLO, WORLD! console.log(text.toLowerCase()); // Outputs: hello, world! </script> </body> </html>
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