if ($charCount{$char}){
    $charCount{$char}++;
}else {
    $charCount{$char}=1;
}

[download]
Perl will happily increment an undefined variable. In other words, the block above does exactly the same as just 
$charCount{$char}++;

[download]

In reply to Re: Hash to count characters by FunkyMonk
in thread Hash to count characters by amittleider

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