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Re^7: filtering an array

by philiprbrenan (Monk)
on Sep 01, 2012 at 23:19 UTC ( #991213=note: print w/ replies, xml ) Need Help??

in reply to Re^6: filtering an array
in thread filtering an array

One or more of the elements of the array @positions is undefined. The easiest way to check this is like this:

use Data::Dump qw(pp); pp([@positions]);

This will give you a printout of the value of each element in array @positions. I expect we will see that some are "undef" meaning undefined. It will be these elements that are causing the problem.

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Re^8: filtering an array
by prbndr (Acolyte) on Sep 01, 2012 at 23:39 UTC

    i don't see any that are "undef. that's a little strange. the data dumper output prints:



    etc. etc. this is a little strange...

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