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<!DOCTYPE html> <html> <body> <p>Objects can be emptied by setting the value to <b>undefined</b>.</p> <p id="demo"></p> <script> var person = { firstName: "John", lastName: "Doe", age: 50, eyeColor: "blue" }; var person = undefined; document.getElementById("demo").innerHTML = typeof person; </script> </body> </html>
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