Raptorfan wrote:
> From: "Paul Malcher" <[EMAIL PROTECTED]>
>> If you say something like $count = grep(/$condition/,@array1); then
>> $count will a count of how many times the condition occurs. Now if
>> you
>
> a minor nit; it would be more correct to use scalar() in that
> case. i'm cleaning up another person's scripts at work and
> one problem is an assumption like the above could (based on
> the calling case) return the first element of the array. if
> the call was
>
> if ( my $count = scalar(grep(/$condition/,@array ) { foo;
> }
>
> .. you are assured $count will always be an integer.
>
> never ASSume.. or people like me end up cleaning scripts when someone
> turns on strict. :)
I don't think so, "$count = " provides the scalar context, so "scalar()"
is unnecessary. The documentation for grep clearly says that it returns
a count in a scalar context.
The author of the script you are cleaning up may not have been aware of
ther difference between arays and lists (see 'perldoc -q array'), but
simply wrapping "scalar" around a grep without taking account of the
current context and desired result, is unlikely to help.
HTH
--
Brian Raven
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