about tizen.systeminfo

about tizen.systeminfo

BY 25 Feb 2013 Web Application Development

In previous version of SDK,the following code works fine.But after I upgraded to SDK2.0,In web simulator It becomes undefined.The object tizen is not null,but 

tizen.systeminfo is undefined.

who can tell me why?

 var isSupported = tizen.systeminfo.isSupported(“WifiNetwork”);

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