VarIsClear
Check if a variant is clear
Declaration
Source position: variants.pp line 77
function VarIsClear(const V: Variant) : Boolean;
Description
VarIsClear returns True if the variant V is empty, or it is a dispatch type with value Nil. For custom types, the decision is left to the custom type.
See also
| Name | Description |
|---|---|
| VarIsEmpty | Check if the variant is empty |
| VarIsNull | Check if a variant is null |
| VarIsNumeric | Check if the variant is a numerical value |
| VarIsStr | Check if the variant is a string |