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Re^3: Error: Use of uninitialized value $item in concatenation (.) or string at...

by ig (Vicar)
on Jun 10, 2011 at 20:37 UTC ( #909201=note: print w/replies, xml ) Need Help??


in reply to Re^2: Error: Use of uninitialized value $item in concatenation (.) or string at...
in thread Error: Use of uninitialized value $item in concatenation (.) or string at...

You might find Data::Dumper helpful. Try adding the following to the end of your script:

use Data::Dumper; # you could put this at start of script print Dumper(\@all_matches);

This will print your data structure in a fairly easy to understand format (see the documentation for details). It might help you to find and understand what is undefined.

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Re^4: Error: Use of uninitialized value $item in concatenation (.) or string at...
by jonc (Beadle) on Jun 11, 2011 at 02:41 UTC
    This was very helpful! I will use it to debug from now on! ...After I read all it can do. Thanks!

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[1nickt]: Discipulus that was the point of my story of taking the sticker off my truck. I know there are lots of people in the world who if I knw their private beliefs I might want to argue with them. And they with me. But life cannot all be arguments!
[1nickt]: This is less than perfect ... but demanding perfection (from people or from life) is a sure way to unhappiness.
[Discipulus]: and anyway we have CB where every (democratic) opinion can be expressed
erix eat the rich!
[1nickt]: I do think it is sad that roho has received 3 downvotes for his polite request, as did I when I objected to the profanity in stonecolddevin's sig. I upvoted both him and Karl for the discussion. Way too much downvoting for inappropriate reasons here!
Discipulus learn that 'argue' has a little negative sense, he thought was a neutral sense, 'vox media'
[1nickt]: argue == discuss && argue == be contentious
[Discipulus]: you are right 1nickt i didnt voted nor downvoted; I just upvote perl content i like
[1nickt]: In Spanish, to argue (like a fight) is discutir -- does not mean to discuss !
[1nickt]: Sigh, this is why I gave up human-only languages and became a Perl linguist :-)

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