On Wed, Mar 9, 2011 at 2:22 PM, Brian F. Yulga <byu...@langly.dyndns.org>wrote:

> Uri and Jim have hit upon one of my major stumbling blocks with learning
> Perl.  There seems to be a difference of opinion on the proper times to use
> hashes vs. arrays/lists...and how best to use them.


http://perldoc.perl.org/perlfaq4.html#How-can-I-remove-duplicate-elements-from-a-list-or-array%3f
>>Use a hash. When you think the words "unique" or "duplicated", think "hash
keys".
Also the Hashes chapter of Learning Perl has a section called something like
"Why use Hashes," which seems fitting enough. Same with the Hashes part of
Modern Perl ( http://www.onyxneon.com/books/modern_perl/index.html ), in the
"The Perl Language" chapter.

For those that have heard of this book, I'm currently digesting this piece
> of information:

Effective Perl Programming, 2nd Ed., Item 9: "Know the difference between
> lists and arrays."
>

See Item 13: Use arrays or hashes to group data. Also,
www.effectiveperlprogramming.com.

Brian.

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