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Re: Re: Undefined subroutine CGI::upload

by jerrygarciuh (Curate)
on Sep 30, 2003 at 16:58 UTC ( #295346=note: print w/replies, xml ) Need Help??


in reply to Re: Undefined subroutine CGI::upload
in thread Undefined subroutine CGI::upload

Well that solves that, eh?

Apparently my reading of the revision history was less than thorough!

Thank you very much for catching that matthewb!

jg

  • Comment on Re: Re: Undefined subroutine CGI::upload

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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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