Re^3: How to Save a variable outside of a loop

That'll yield a warning:

c:\@Work\Perl\monks>perl -wMstrict -le
"my $x = '';
 print 'equal' if $x == 1;
"
Argument "" isn't numeric in numeric eq (==) at -e line 1.
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Re^4: How to Save a variable outside of a loop by Laurent_R (Canon) on Aug 01, 2015 at 12:18 UTC
Yes, AnomalousMonk, you're right, I did not pay attention to the fact that the code is using numeric comparison. I'm doing this type of things regularly, but usually with the string `eq` operator, even when the data string is numeric (say a customer number or a phone number with only digits). Reducing the number of operations made in the `while (<$fh>)` loop makes some sense when removing duplicates from a 500-million-line file.	[reply] [d/l] [select]

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Re^4: How to Save a variable outside of a loop
by Laurent_R (Canon) on Aug 01, 2015 at 12:18 UTC

AnomalousMonk

eq

while (<$fh>)

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