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Re: To Hash or to Array--Uniqueness is the question.

by kbrint (Sexton)
on Dec 02, 2005 at 08:47 UTC ( #513535=note: print w/ replies, xml ) Need Help??


in reply to To Hash or to Array--Uniqueness is the question.

my (@items, @unique, %seen); for (@items) { push @unique, $_ unless $seen{$_}++; }
This has a few benefits:
  • Deterministic ordering.
  • Works for objects and passes them through to @unique without stringification.

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