Re^2: reduce line of code


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by ysth (Canon)

on Jul 14, 2009 at 06:36 UTC ( [id://779809]=note: print w/replies, xml )

Need Help??

I often prefer setting a default, then overwriting with the validated value:

my $cmd = 0;
$cmd = $step_no if $step_no =~ /\A\d+\z/;
[download]

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Re^3: reduce line of code by lima1 (Curate) on Jul 14, 2009 at 08:52 UTC
I guess this is what Sun751 meant. His non-working example scopes the $cmd variable to the if ... else blocks.	[reply]
Re^4: reduce line of code by jeanluca (Deacon) on Jul 14, 2009 at 09:26 UTC
OT: just add `use strict ; use warnings ;` [download] to your programs, witch would have detected your scoping problem! LuCa	[reply] [d/l]

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