Re: Ternary Operator with Subroutine

This would work:

( my $test ) 
  ? print 'c'
  : sub { print 'a'; print 'b' }->();
[download]

But this is probably what you want:

( my $test ) 
  ? print 'c'
  : do{ print 'a'; print 'b' };
[download]

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.

"Science is about questioning the status quo. Questioning authority".

In the absence of evidence, opinion is indistinguishable from prejudice.

Comment on Re: Ternary Operator with Subroutine Select or Download Code

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Re^2: Ternary Operator with Subroutine by egga (Monk) on Aug 12, 2011 at 08:37 UTC
There must be something I didnt understand yet, so I excuse my question, dear Monks. But why would anyone ~~would~~ like to do that? Is there any possibility, that `my $test` [download] may fail? It seems to me like writing `if (1) { print "some"; } else { print "thing"; }` [download] (And in that case, I could imagine some kind of debug-switch or so). Please enlighten me.	[reply] [d/l] [select]
Re^3: Ternary Operator with Subroutine by BrowserUk (Patriarch) on Aug 12, 2011 at 08:48 UTC
Is there any possibility, that `my $test` may fail? Actually, it will always "fail". That is, an uninitialised variable is always undef, and therefore false. It also doesn't make much sense to do `print 'a'; print 'b';` instead of `print 'a', 'b';` or `print 'ab';`. I think it is fair to assume that the code supplied it greatly simplified example and that `( my $test )` is just a placeholder for 'some boolean condition' rather than an actual variable declaration. Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply] [d/l] [select]
Re^2: Ternary Operator with Subroutine by Jim (Curate) on Aug 14, 2011 at 16:24 UTC
The statement… `( my $test ) ? print 'c' : do{ print 'a'; print 'b' };` [download] …is much better written… `print 'a'; print 'b';` [download]	[reply] [d/l] [select]
Re^3: Ternary Operator with Subroutine by BrowserUk (Patriarch) on Aug 14, 2011 at 17:39 UTC
No shit Sherlock! Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice.	[reply]