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Re^3: How Do I End Up With a Larger Number of Hash Keys Here?

by pryrt (Prior)
on Mar 03, 2020 at 19:40 UTC ( #11113732=note: print w/replies, xml ) Need Help??


in reply to Re^2: How Do I End Up With a Larger Number of Hash Keys Here?
in thread RESOLVED - Autovivification: How Did I End Up With a Larger Number of Hash Keys Here?

Uh .. no.

Actually, yes. 1nickt had a HoH, not just a simple hash. Intervening levels can and do get created, even when called by exists

> perl -de 1 Loading DB routines from perl5db.pl version 1.27 Editor support available. Enter h or `h h' for help, or `man perldebug' for more help. main::(-e:1): 1 DB<1> %hoh = (); DB<2> use Data::Dumper; DB<3> print Dumper(\%hoh) $VAR1 = {}; DB<4> if (exists($hoh{nothing}{second})) { print "wow.\n"; } DB<5> !3 print Dumper(\%hoh) $VAR1 = { 'nothing' => {} };

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