I need some help traversing my array of arrays. The output consists of position coordinates (x,y,z) and the selected values from the array. Also, the input array has to scale from 1D to nD ("3D" shown in the example). Thanks! 
# input
my (@arr) = (
[ '0-0', '0-1' ],
[ '1-0', '1-1', '1-2', '1-3' ],
[ '2-0', '2-1', '2-2', '2-3' ]
);

# ...

# output
(0,0,0) --> 0-0 1-0 2-0
(0,0,1) --> 0-0 1-0 2-1
(0,0,2) --> 0-0 1-0 2-2
(0,0,3) --> 0-0 1-0 2-3
(0,1,0) --> 0-0 1-1 2-0
(0,1,1) --> 0-0 1-1 2-1
(0,1,2) --> 0-0 1-1 2-2
(0,1,3) --> 0-0 1-1 2-3
(0,2,0) --> 0-0 1-2 2-0
(0,2,1) --> 0-0 1-2 2-1
(0,2,2) --> 0-0 1-2 2-2
(0,2,3) --> 0-0 1-2 2-3
(0,3,0) --> 0-0 1-3 2-0
(0,3,1) --> 0-0 1-3 2-1
(0,3,2) --> 0-0 1-3 2-2 
(0,3,3) --> 0-0 1-3 2-3 
(1,0,0) --> 0-1 1-0 2-0
(1,0,1) --> 0-1 1-0 2-1
(1,0,2) --> 0-1 1-0 2-2
(1,0,3) --> 0-1 1-0 2-3
(1,1,0) --> 0-1 1-1 2-0
(1,1,1) --> 0-1 1-1 2-1
(1,1,2) --> 0-1 1-1 2-2
(1,1,3) --> 0-1 1-1 2-3
(1,2,0) --> 0-1 1-2 2-0
(1,2,1) --> 0-1 1-2 2-1
(1,2,2) --> 0-1 1-2 2-2
(1,2,3) --> 0-1 1-2 2-3
(1,3,0) --> 0-1 1-3 2-0
(1,3,1) --> 0-1 1-3 2-1
(1,3,2) --> 0-1 1-3 2-2 
(1,3,3) --> 0-1 1-3 2-3

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In reply to Array looping advice by nineam

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