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Re: Performance penalty of using qr//

by dave_the_m (Monsignor)
on Dec 21, 2017 at 12:44 UTC ( [id://1205977]=note: print w/replies, xml ) Need Help??

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  1. or download this
    $r = qr/(.)/;
"a" =~ $r;
print "$1\n";
{ "b" =~ $r; print "$1\n"; }
print "$1\n";
  2. or download this
    a
b
a

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