Re: Subroutines within if statements

I think you mean:

if ($answer eq "add" || $answer eq "a") {
    &addlinks;
}
elsif ($answer eq "remove" || $answer eq "r") {
    &rmlinks;
}
else {
    exit 0;
}
[download]

You're probably better off calling those as addlinks() and rmlinks() until you understand how the &sub calls are special (see perlsub).

Also, I recommend that you use strict; use warnings; until you know why you might not want strict and warnings.

Comment on Re: Subroutines within if statements Select or Download Code

Replies are listed 'Best First'.
Re^2: Subroutines within if statements by lodin (Hermit) on Feb 21, 2008 at 23:48 UTC
Nowadays you can use `use 5.010; if ("$answer" ~~ [ 'add', 'a' ]) { ... }` [download] I explicitly stringify `$answer` because if `$answer` happens to be something else (like an object) the `~~` operator will act differently and I don't want that. On the contrary, I want to allow objects that may stringify to "add" or "a". lodin	[reply] [d/l] [select]
Re^2: Subroutines within if statements by wfsp (Abbot) on Feb 22, 2008 at 08:45 UTC
...until you know why you might not want strict and warnings. Why might I not want strict and warnings? I get twitchy seeing `no warnings` in a small block. When I see either commented out at the top of a script I hide behind the sofa. :-) What is it I don't know yet? Is there a secret handshake? :-)	[reply] [d/l]
Re^3: Subroutines within if statements by kyle (Abbot) on Feb 22, 2008 at 13:55 UTC
Why might I not want strict and warnings? I haven't written any significant code without them since I learned of them. (I write `perl -e` without them.) I don't have a case where I wouldn't want them. That said, I could imagine code that produces spurious warnings. I could further imagine some PHB who wants no error messages in a log somewhere. I've heard some say they turn off strict and warnings in production to avoid some overhead. I personally think this is a lousy way to gain performance. Like you, I don't like to see code without strict and warnings. I don't want to work on it. Nevertheless, other programmers have their own minds, and I want to respect that.	[reply] [d/l]
Re^2: Subroutines within if statements by muizelaar (Sexton) on Feb 22, 2008 at 11:03 UTC
That's great as soon as I saw your code I knew where I went wrong. :( Bit of along day :)	[reply]