Re: Re: Pulling Array Out of Hash Reference

I believe you meant:

print @{ $hashRef }{'a','d'};
[download]

Your code attempts to deref $hashRef->{join $;,'a','d'} which is undefined.

antirice
The first rule of Perl club is - use Perl
The ith rule of Perl club is - follow rule i - 1 for i > 1

Comment on Re: Re: Pulling Array Out of Hash Reference Select or Download Code

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Re^3: Pulling Array Out of Hash Reference by tye (Sage) on Apr 12, 2004 at 23:24 UTC
Which can also be written as `print @$hashRef{'a','d'};` [download] as outlined in references quick reference (which is how I finally figured out that all of this syntax is pretty easy to keep straight). But I think I'd stick with `print @{$hashRef}{'a','d'};` [download] as being clearer. - tye	[reply] [d/l] [select]
Re: Re^3: Pulling Array Out of Hash Reference by antirice (Priest) on Apr 13, 2004 at 00:13 UTC
Yes, but I normally use `@{hashref}{LIST}` since it puts me in the habit of not doing something goofy like trying to change `@$hashRef{LIST}` [download] into `@$array_ref->[INDEX_OF_HASHREF]{LIST}` [download] during those late night coding sessions. antirice The first rule of Perl club is - use Perl The ith rule of Perl club is - follow rule i - 1 for i > 1	[reply] [d/l] [select]
Re: Re: Re: Pulling Array Out of Hash Reference by kvale (Monsignor) on Apr 12, 2004 at 23:22 UTC
Blush, a bad test on my part. You are entirely correct. -Mark	[reply]