in reply to Re^2: string diff and compare
in thread string diff and compare

From perlod ...

reverse LIST
In list context, returns a list value consisting of the elements of LIST in the opposite order. In scalar context, concatenates the elements of LIST and returns a string value with all characters in the opposite order.
...

And, read map chain as: map { scalar( reverse $_ ) } ( $old , $new ).

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Re^4: string diff and compare
by Anonymous Monk on May 04, 2012 at 16:13 UTC
    "perlod"? Ha! :-) sounds like "perllord" was misspelled.
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In Section Meditations