I generally use it in-line in cases like this:
printf("The answer is %s\n", defined($ans) ? $ans : "unknown");'

or

$ans = defined($ans) ? $ans : "unknown";
This is left over from C programming days. I stopped at the first known construct. It seems efficient versus this: 
printf("The answer is ");
if (defined($ans))
{
    printf("%s\n", $ans);
}
else
{
    printf("unknown\n");
}
I would not have a tendency to use it on multi-line constructs as shown in other examples in this thread because the ? and : tend to get lost.

In reply to Re: Mr. Ternary is greater than Mrs. If Else by Anonymous Monk
in thread Mr. Ternary is greater than Mrs. If Else by PerlPhi

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