in reply to Re^2: To initialise or not to initialise?
in thread To initialise or not to initialise?

Precisely, thanks for clearing up the terminology. And I have to apologize for not being about to think of a good example, but I have found at times I need the undefined variable, as opposed to the defined, inferring a value.

—Brad
"Don't ever take a fence down until you know the reason it was put up. " G. K. Chesterton
  • Comment on Re^3: To initialise or not to initialise?

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Re^4: To initialise or not to initialise?
by kiat (Vicar) on Jun 24, 2004 at 13:52 UTC
    Ah okay.

    I thought it might be something to do with concatenation at first, which also shows a subtle difference: 

    my $var1;
print $var1 .= 'r', "\n";
# prints r

my $var2 = '';
print $var2 .= 'r', "\n";
#prints r

my $var3 = 0;
print $var3 .= 'r', "\n";
#prints 0r

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