Data Type: Any
A numeric or string expression.
Determines whether the variable has been initialized by having
an initial value (other than
Empty) assigned to it.
If the variant passed to IsEmpty has
not been initialized,
returned; otherwise, IsEmpty returns
Although IsEmpty can take an
expression as the value of
it always returns
more than one variable is used in the expression.
IsEmpty is therefore most commonly used
with single variables.
When passed an object variable that has been set equal to
Nothing, the IsEmpty function returns
False. Hence, the function should not be
used to test whether a previously initialized object variable now
holds a valid object reference.