On Sun, Sep 11, 2011 at 5:10 PM, Gaal Yahas <[email protected]> wrote: > In Perl, once you say $a->{$b}->{$c}, $a->{$b} will "spring into > existence". >
This is called "autovivification". Vincent Pit has written a pragma you can install and use in order to disable autovivification. "use autovivification" turns it on (which is the default in Perl) "no autovivification" turns it off Reference: https://metacpan.org/module/autovivification
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