Hello $h4X4_|=73}{,

To expand a little on hippo’s answer: If you print out the contents of @Foo::THING immediately after the statement beginning Foo::check_THING(1), you’ll see an additional, empty, anonymous hash has been autovivified by the action of referring to $THING[1]{check}1:

 0:20 >perl 1665_SoPW.pl
Some Thing
No Thing
[{ check => 1 }, {}]
No Thing
Some Thing

 0:20 >

[download]

(I’m using Data::Dump.) And if you add this line:

no autovivification;

[download]

immediately before the line our @THING = ();, you’ll get the behaviour you expect:

 0:20 >perl 1665_SoPW.pl
Some Thing
No Thing
[{ check => 1 }]
Some Thing
No Thing

 0:24 >

[download]

(See the autovivification pragma.)

1Note that you can replace check with any key name here and get the same result.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Array skips number if checked for defined. by Athanasius
in thread Array skips number if checked for defined. by $h4X4_&#124;=73}{

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