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Re^3: convert rows to columns

by choroba (Bishop)
on Nov 27, 2012 at 10:31 UTC ( #1005832=note: print w/replies, xml ) Need Help??


in reply to Re^2: convert rows to columns
in thread convert rows to columns

In recent Perl (since 5.14), you can push to an array reference. It is not autovivified, though; therefore,
perl -e '$x[0] = []; push $x[0], 1'
works, but
perl -e 'push $x[0], 1'
does not.
لսႽ ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

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[Corion]: 1nickt: Would be great, especially for naming parameters in @_.
[Corion]: When you pass an arrayref, you get to treat it like a local array. But then, I'm cautious with the experimental features, because just when I thought function signatures were a set thing, there is a proposal to use sub [ $foo, $bar ] { ... } to ...
[Corion]: ... declare the parameters, instead of the more common sub ($foo, $bar) { ... }

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