in reply to Re: how can i replace a hash key with other hash value?
in thread how can i replace a hash key with other hash value?

You can't "replace a key" but you can set a new one and delete the existing one
And you can do that in one line: 
$hash{$hash_tr_fr{$eng}} = delete $hash{$eng};

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which has the added benefit to even work correctly when $hash_tr_fr{$eng} eq $eng. Doing the delete in a separate step would result in a loss of the entry.

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Re^3: how can i replace a hash key with other hash value?
by cdarke (Prior) on Mar 24, 2010 at 10:59 UTC
    ...or even in a slice without the loop. So:
    for my $eng (keys %hash){
   $hash{$hash_tr_fr{$eng}}=$hash{$eng};
   delete $hash{$eng};
}

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    becomes:
    my @temp = keys %hash;
@hash{@hash_tr_fr{@temp}} = delete @hash{@temp};

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    Update: corrected missing @, thanks SuicideJunkie
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