I agree, and note what this means for inserting a list:

my %set;
@set{qw(I agree)} = ();
print sort keys %set;      # Iagree

[download]

Just didn't want you to say

@set{@list} = (undef) x scalar @list;

even though that would work.

In reply to Re^2: Idiom: hashes as sets by Narveson
in thread Idiom: hashes as sets by vrk

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