[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'Variants' (#rtl)

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

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


Documentation generated on: Jun 22 2020