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Re: Re: Array Comparison

by Roy Johnson (Monsignor)
on Dec 22, 2003 at 18:37 UTC ( [id://316440]=note: print w/replies, xml ) Need Help??


in reply to Re: Array Comparison
in thread Array Comparison

I think that should be 
my @cleaned = grep { not exists $exclude{$_} } @words;

[download]
Grep returns the original value for every element for which the expression returns true. Your ternary operator would be useful in map, but not here.
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Re: Re: Re: Array Comparison
by mcogan1966 (Monk) on Dec 22, 2003 at 18:54 UTC
    Excellent, this works much faster.

    Now, if I can just sort and make the list with just unique entries, I'm all set. Thanks.

[reply]
      my @uniq = sort keys %{{map {$_ => 1} @cleaned}};

      [download]
      or you could combine two statements in one (not recommended though :-) ...
      my @uniq = sort keys %{{map {$_ => 1}
                        grep{not exists $exclude{$_}}@words}};

      [download]
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