Re: Array manipulation how to

swap two elements of an array

@array[$index1, $index2] = @array[$index2, $index1];
[download]

step $index in direction $dir (+1 or -1) in array in a 'circular' way:

$index = ($index + $dir) % @array;
print $array[$index];
[download]

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Re^2: Array manipulation how to by jwkrahn (Abbot) on Feb 07, 2012 at 11:07 UTC
`$index = ($index + $dir) % @array;` [download] Or: `( $index += $dir ) %= @array;` [download]	[reply] [d/l] [select]
Re^2: Array manipulation how to by chessgui (Scribe) on Feb 07, 2012 at 09:25 UTC
What kind of sytax is this: `@array[$index1,$index2]`? What does this exactly mean?	[reply] [d/l]
Re^3: Array manipulation how to by moritz (Cardinal) on Feb 07, 2012 at 09:47 UTC
It's an array slice, and it returns multiple of the array elements. perldata describes it in more detail. Perl 6 - second systems done right	[reply]