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Postings from April 2012
On 2012-04-03 18:55, timothy adigun wrote:
> Hi Stan,
> Please check my comments below:
> $test{one} eq "first" ?
> $test{one} .= " is the worst\n" :
> ( $test{two} .= " is the best\n");
This is not what the ternary (conditional operator) is for. As I said in
my last post, it is used for selecting from two values, NOT for making
changes because of a condition.
> You can also see perldoc perlop, under *Conditional Operator* sub-topic.
Where it states, as its opening statement:
"Ternary "?:" is the conditional operator, just as in C. It works much
like an if-then-else. If the argument before the ? is true, the argument
before the : is returned, otherwise the argument after the : is returned."
perlop doesn't even hint that it is used to modify existing variables.
Even the examples are clear cut and dried.
Moreover, there isn't a single example in that perlop section that
describes using parenthesis in the fashion your advice above shows. The
Perlish way to use parens with the conditional operator was described in
my last email. Here it is here again:
$x = ( $y == 1 )
: 5
: 10;
Here's the link to the perlop conditional op section again:
http://perldoc.perl.org/perlop.html#Conditional-Operator
Cheers,
Steve
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