According to
http://msdn.microsoft.com/en-us/library/ie/x53yedee(v=vs.94).aspx
radixOptional. A value between 2 and 36 that specifies the base of the number in numString. If this argument is not supplied, strings with a prefix of '0x' are considered hexadecimal. All other strings are considered decimal.
10 according to 8 radix,why the result is 8?
My Internet Explorer is IE11.
