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Postings from April 2012
On Wed, 04 Apr 2012 03:04:42 -0400, Uri Guttman wrote:
> On 04/03/2012 06:55 PM, timothy adigun wrote:
> that is the wrong way to fix this even if it works.
>
> the ternary operator is meant to return a single value from a choice of
> two expressions. it is not meant for side effects like assignment or sub
> calls that do things. use if/else for that. the correct answer here is
> to use if/else as the assignments go to different places.
>
> if( $test{one} eq 'first' ) {
> $test{one} .= " is the worst\n" ;
> else {
> $test{two} .= " is the best\n";
> }
>
> that code is not a good use of ?: at all so use if/else.
Right. And if you want the single statement succinctness, use and/or:
% perl -le '%test = qw(one first two second); $test{one} eq "first" and
$test{one} .= " is the worst" or $test{two} .= " is the best"; print for
values %test'
first is the worst
second
% perl -le '%test = qw(one third two second); $test{one} eq "first" and
$test{one} .= " is the worst" or $test{two} .= " is the best"; print for
values %test'
third
second is the best
--
Peter Scott
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