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This results from a discussion in the chatterbox
Please help me on this one, can someone explain to
me the result of the following code:
#!/usr/bin/perl -w use strict; my @keys = qw(one two three); my %hash = ( four => 4, five => 5, six => 6); print "@keys\n"; if (@hash{@keys}) { print "yep\n"; } else { print "nope\n"; } push @keys, 'four'; print "@keys\n"; if (@hash{@keys}) { print "yep\n"; } else { print "nope\n"; } @keys = qw(one two three); unshift @keys,'four'; print "@keys\n"; if (@hash{@keys}) { print "yep\n"; } else { print "nope\n"; }

Result:
martijn@xxxx$ ./test
one two three
nope
one two three four
yep
four one two three
nope

Strange innit ?

In reply to Hash slices ? by ChOas

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    Chatterbox?
    [RonW]: Hi, tye, thezip
    [RonW]: I see useless errors liek that from Perl programs, too.
    [tye]: well, you certainly don't see strack traces with all of the values removed from Perl.
    [thezip]: Howdy RonW. Not in *my* logfiles you won't!
    [tye]: and I never claimed anything about 100% on either side.
    [RonW]: Presumably because the coders didn't realize that die and warn will append line number and file when the message strings doesn'r end with a line terminator
    [tye]: And these are popular and not new python projects.
    [thezip]: I had a user complain that they didn't receive an email from one of my processes. I went to the logfile and reproduced the entire contents of the email they would have received. Not my problem.
    [tye]: How the heck does a web framework get popular when an unexpected exception gets logged as just "Exception" w/ no details?
    [RonW]: There have been times when some one has modified my Perl code and decided to "clean up" my error/warning messages for me by adding line terminators

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