March 2000
Intermediate to advanced
576 pages
18h 13m
English
Content preview from Delphi in a Nutshell
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Name
VarClear Procedure
Syntax
procedure VarClear(var V: Variant);
Description
VarClear disposes of the old value of
V and sets its type to
varEmpty.
VarClear is not a real function.
Example
// The following two statements do the same thing: VarClear(V); V := Unassigned;
See Also
| ClearAnyProc Variable, Unassigned Variable, Variant Type, VarIsEmpty Function |
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.