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Re^3: using hashes

by hdb (Prior)
on Sep 26, 2013 at 17:30 UTC ( #1055869=note: print w/ replies, xml ) Need Help??


in reply to Re^2: using hashes
in thread iterating hash keys?

In order to make things even more complicated I recommend to replace $hash{ $1 } with

$hash{ $1 } // $1

which means if $1 is not found in your hash, then replace your word with itself, ie leave it unchanged.

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