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Re: Scalar followed by parenthetical...

by LanX (Canon)
on May 19, 2013 at 03:34 UTC ( #1034187=note: print w/ replies, xml ) Need Help??


in reply to Scalar followed by parenthetical...

ehm ... something completely different!

If you meant to write:

$_->{B} ||= $_->{A} foreach @h;

you should be warned about another bug!

I doubt that you really want $_->{B} to be overwritten if it's 0 or "".

Always use defined-or // to check for undef!

Cheers Rolf

( addicted to the Perl Programming Language)


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Re^2: Scalar followed by parenthetical...
by Anonymous Monk on May 19, 2013 at 04:36 UTC
    actually I did want $_->{B} to be overwritten... just got bitten in my code where I forgot the "->" for the "A" side, but didn't see a warning. Thanks all!
      Thanks for sharing your error. I learned a lot from the explanations.
      Bill

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