1. Millions of Hong Kong residents hold British National (Overseas), or BNO, passports. These are issued by the United Kingdom Government to Hong Kong residents who had British nationality by virtue of a connection with Hong Kong before reunification with China in 1997.hese passports are also recognised by many other countries for visa-free travel purposes. BNO passports are governed by the Hong Kong (British Nationality) Order 1986, which is an Order-in-Council of the United Kingdom Government.
Basic Description. The Excel Isnumber function tests if a supplied value is a number. If so, the function returns TRUE; Otherwise it returns FALSE. The syntax of the function is: ISNUMBER( value ) Where the supplied value is the value or expression to be tested.
IsNull returns True if expression is Null; otherwise, IsNull returns False. If expression consists of more than one variable, Null in any constituent variable causes True to be returned for the entire expression. The Null value indicates that the Variant contains no valid data. Null is not the same as Empty, which indicates that a variable has not yet been initialized. It is also not the same as a zero-length string (), which is sometimes referred to as a null string. Important Use the IsNull function to determine whether an expression contains a Null value. Expressions that you might expect to evaluate to True under some circumstances, such as If Var = Null and If Var <> Null, are always False. This is because any expression containing a Null is itself Null and, therefore, False.