swap two elements of an array
@array[$index1, $index2] = @array[$index2, $index1];

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step $index in direction $dir (+1 or -1) in array in a 'circular' way:
$index = ($index + $dir) % @array;
print $array[$index];

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Perl 6 - second systems done right

In reply to Re: Array manipulation how to by moritz
in thread Array manipulation how to by chessgui

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