Re: Why do I get this error?

edit

$" is a special variable defining how array elements are separated within a string interpolation. Its set by default, if its missing now then YOU must have set it to undef before. See $LIST_SEPARATOR in perlvar

some more thoughts

Do you use strict and warnings?

Why do you iterate so complicated instead of using a foreach $elem (@array) ... etc ?

Why a string interpolation instead of join "\t", @$elem ?

Cheers Rolf

( addicted to the Perl Programming Language)

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Re^2: Why do I get this error? by Anonymous Monk on May 12, 2014 at 00:49 UTC
But I have a Array of Arrays there... How can I use join? Also, if you use foreach, doesn't it mean that you lose the order of elements? Or not?	[reply]
Re^3: Why do I get this error? by LanX (Saint) on May 12, 2014 at 00:58 UTC
> But I have a Array of Arrays there... `$elem` is an array ref, you can also call it `$a_ref` or whatever explains best the content (`$a_row` for instance) > How can I use join? like shown, did you notice the @ in front of `@$elem`, it dereferences the array ref. > Also, if you use foreach, doesn't it mean that you lose the order of elements? Nope! Try it out... Cheers Rolf ( addicted to the Perl Programming Language)	[reply] [d/l] [select]
Re^4: Why do I get this error? by Anonymous Monk on May 12, 2014 at 01:02 UTC
Thank you for your help! Unfortunatelly it doesn't work, it still says the same thing! Actually, this code worked just fine, but I wanted to implement the "use strict" mode and added "my" etc and now I get this stupid error... The printing is done, but the warning remains (as it was before)...	[reply]
Re^3: Why do I get this error? by Anonymous Monk on May 12, 2014 at 00:53 UTC
And regarding the `$"`, I didn't do anything, it's actually first time I come across this thing...I don't know what I am supposed to do to be honest!	[reply] [d/l]
Re^4: Why do I get this error? by LanX (Saint) on May 12, 2014 at 01:00 UTC
> I didn't do anything, Well someone did cause Perl doesn't without being told so. It's a global variable, who knows where it happens in your code. Thats why we preach to always localize any change to special vars. Cheers Rolf ( addicted to the Perl Programming Language) PS: It's late, good night! :)	[reply]