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Re: Array vs. Hash for sparsely integer-indexed data

by BrowserUk (Pope)
on Jan 25, 2013 at 19:02 UTC ( #1015391=note: print w/replies, xml ) Need Help??

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  1. or download this
    $a[ $_*2 ] = $_ for 1 .. 1e5;;
    $h{ $_*2 } = $_ for 1 .. 1e5;;
    ...
    print total_size( $_ ) for \( @a, %h );;
    69509024
    7526431
    
  2. or download this
    $a[ $_ * 20 ] = $_ for 1 .. 1e5;;
    
    ...
    1359141122.04252
    1359141123.06596
    100000
    

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[Corion]: hippo: At least for the German translation, the wordplay is translated as well
[Discipulus]: always! but if i can ask choroba why you always use the inverted (to me) form 1 == $.?
[choroba]: To avoid accidental overwriting of the variable in if ($x = 3)
[karlgoethebier]: Corion: Auch in hessisch? Mer wasses net.
[Corion]: Hmm - I'm not sure, I haven't read the mundart/slang translations ;)
[Eily]: $F[1] =~ s/^0//r could be written as (0+$F[1]). It's less explicit though
[Discipulus]: ah! seems wise choroba, you play safe
[shmem]: Eily: also -+-$F[1]

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