Use if exists $hash->{1} instead.

Nope, that will still cause $hash to become a hashref and print 1 if $hash; will print 1. exists takes a hash element, and you can't have a hash element without a hash! :)

In reply to Re^2: Why does testing a key create a hash? by friedo
in thread Why does testing a key create a hash? by johnnywang

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