On Fri, 15 Jun 2001, Tim Musson wrote:
> Friday, June 15, 2001, 4:28:05 PM, you wrote:
>
> BWM> Using "my" puts the variable into a lexical scope and keeps it
> BWM> out of the global name space.
>
> What does lexical mean here? I looked it up in a dictionary, but still
> am not sure how it applies.
A lexical scope can be a block of code enclosed in braces:
{
my $var = 12;
...
}
or inside a function:
sub foo {
my $var = shift;
...
}
These variables are not visible outside their scope -- they are
localized. This also includes a file scope -- a my variable declared in a
file is not visible outside of the file. You can create global variables
that are.
-- Brett
http://www.chapelperilous.net/btfwk/
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