Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Re: qw with anonomous list ref

by Ovid (Cardinal)
on Oct 28, 2002 at 22:54 UTC ( #208631=note: print w/ replies, xml ) Need Help??


in reply to qw with anonomous list ref

The bottom one creates a list of references, not a reference to a list.

C:\>perl -e "($x,$y)=\qw(a b);print $$y" b

Cheers,
Ovid

Join the Perlmonks Setiathome Group or just click on the the link and check out our stats.


Comment on Re: qw with anonomous list ref
Download Code
Re: Re: qw with anonomous list ref
by bart (Canon) on Oct 29, 2002 at 13:00 UTC
    Ooff, just like I thought. I would have been really confused if it hadn't been this way.

    BTW, OP: an excellent helper tool to see what Perl does to your data, is the standard module Data::Dumper:

    use Data::Dumper; print Dumper [qw(a b c)], \qw(a b c);
    Result:
    $VAR1 = [ 'a', 'b', 'c' ]; $VAR2 = \'a'; $VAR3 = \'b'; $VAR4 = \'c';
    The "$VARn" notation is the default variable name that Data::Dumper makes for each argument passed to the sub Dumper. So here you have 4 arguments: the first is for [qw(a b c)], the other for each item in \qw(a b c). It is indeed a list of references, with 3 items.

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://208631]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others about the Monastery: (5)
As of 2014-08-30 13:24 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (293 votes), past polls