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Re^2: dereference array of array

by moadeep (Novice)
on Jan 21, 2013 at 11:41 UTC ( #1014427=note: print w/replies, xml ) Need Help??

in reply to Re: dereference array of array
in thread dereference array of array

Thanks Rolf, Dumper does indeed give me the numbers I wish. However the format -
$VAR1 = [ '11', '40', '13', '11', '3', '4' ];
is not ideal. I really need it in the form 11 40 13 11 3 4 so I can pass it into a subroutine for creating a latex table. Any ideas


@{$results[0]} worked thanks

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Re^3: dereference array of array
by LanX (Chancellor) on Jan 21, 2013 at 11:46 UTC
    see all examples given in my reply.

    you can also manipulate $, for simple prints and $" for double-quoted expressions or just join.

    plz use <code> and <p> tags.


    PLZ! when updating a post don't simply delete what you wrote before!!!

    Cheers Rolf

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[Lady_Aleena]: Why does grep(/.*$in.*/, @my_modules) work but grep { $_ =~ /.*$in.*/; $_ } @my_modules not work? What did I do wrong in the second?
[tobyink]: Why are you returning $_ n your grep block? You should return a boolean.
[tobyink]: *in your grep block
[tobyink]: You can use grep { $_ =~ /.*$in.*/; } @my_modules but why not stick to grep(/.*$in.*/, @my_modules)? (The latter is faster.)
[shmem]: Lady_Aleena, in the first example grep evaluates the result from grep and if true, returns $_. In the second, it always returns $_
[shmem]: ..the result from the pattern match
[Lady_Aleena]: tobyink, I did after I failed to get the BLOCK to work. I can't seem to get my brain around grep BLOCK, though I'm okay with grep EXPR.
[shmem]: so in the second example grep returns all true elements of the list passed
[Lady_Aleena]: Okay, so grep BLOCK is not like map BLOCK where something might need to be returned at the end.
[tobyink]: grep { $_ =~ /.*$in.*/; } @my_modules should work just fine. The problem is that you were adding on ;$_ at the end of the block. Why were you doing that?

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