lang • isnull

IsNull

Result = IsNull ( Expression ) AS Boolean

Returns TRUE if Expression is NULL, i.e. if it is:

  • The NULL constant.

  • A null object reference.

  • A zero length string.

  • A null date.

  • An uninitialized variant.

Examples

Print IsNull(Null)
True
Print IsNull("Gambas")
False
Print IsNull("")
True

See also