%hash{@array} >>++

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would be pretty much the same as 
%hash{$_}++ for @array

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if I understand correctly. Is that what you are asking? I think >> applies the operation to all of the elements of the array to the left of the >>. The best example of the >> and << things (I don't know what they are called... maybe not operators), would be 
@added = @array1 >>+<< @array2;

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which is like 
## p5 code, I'm not completely fluent in p6 yet...

for ( my $i = 0; i < $#array1; i++ ) {
   $added[ $i ] = $array1[ $i ] + $array2[ $i ]
}

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-Bryan

In reply to Re^4: hash and array by mrborisguy
in thread hash and array by zulqernain

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