Re: Use variable outside if statement

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Re: (2) Use variable outside if statement by diotalevi (Canon) on Dec 18, 2003 at 00:00 UTC
That's a poor idea. The right way to solve it is to expand the scope of the variable a notch to be just outside the if-block. You solved it by ratchetting the scope up to global which is far higher than the problem required.	[reply]
Re: Re: Use variable outside if statement by SavannahLion (Pilgrim) on Dec 18, 2003 at 06:56 UTC
Make it a global variable, don't use "my" Ummm... Just a thought, aside from what diotalevi said, I don't think Perl would be happy with that solution since the original poster has Use Strict; in his code. It's poor coding practice to unnecessarily declare such broad scopes when smaller scopes would be just as effective. I can't tell you how often I reuse variable names, making it even more important to limit their scope. Can you imagine the kind of bugs that would crop up if you use a global variable called $count in all your While loops? ---- Is it fair to stick a link to my site here? Thanks for you patience.	[reply]
Re: Re: Re: Use variable outside if statement by jryan (Vicar) on Dec 20, 2003 at 06:04 UTC
Ummm... Just a thought, aside from what diotalevi said, I don't think Perl would be happy with that solution since the original poster has Use Strict; in his code. What's wrong with `our`?	[reply] [d/l]
Re: Re: Use variable outside if statement by podian (Scribe) on Dec 18, 2003 at 20:28 UTC
`use strict; if ($line =~ /TC/g) { my $lookfor = "TC"; } else { my $lookfor = "26 "; } print $lookfor;` [download] I have not seen a simple answer to this question. A simple answer could be, declare the variable outside the IF statement like this: `use strict; my $lookfor; if ($line =~ /TC/g) { $lookfor = "TC"; } else { $lookfor = "26 "; } print $lookfor;` [download] Because he is not seeing the result when he prints the variable because it's scope is inside the IF In fact, shouldn't he get a compile error when he tries to run this? (unless he already has the same variable somewhere else)	[reply] [d/l] [select]
Re: Re: Use variable outside if statement by Juerd (Abbot) on Dec 23, 2003 at 23:01 UTC
Make it a global variable, don't use "my" Heh, I had a good laugh. That single ++ was mine :) rotflol. Juerd # { site => 'juerd.nl', plp_site => 'plp.juerd.nl', do_not_use => 'spamtrap' }	[reply]