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Re: Perl Idioms Explained - keys %{{map{$_=>1}@list}}

by Juerd (Abbot)
on Aug 04, 2003 at 13:02 UTC ( [id://280660]=note: print w/replies, xml ) Need Help??

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  1. or download this
    my %foo = map { $_ => 1 } @foo;

if ($foo{$bar}) {
   ...
}
  2. or download this
    my %foo;
undef @foo{@foo};
...
if (exists $foo{$bar}) {
   ...
}
  3. or download this
    if (grep $_ eq $bar, @foo) {
   ...
}

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