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<!DOCTYPE html>
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<html>
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<head>
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    <title>Dynamic Properties Example 2</title>
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    <script type="text/javascript">
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        var name = "Nicholas";
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        name.age = 27;
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        alert(name.age);    //undefined
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    </script>
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</head>
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<body>
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​
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</body>
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</html>