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Re^3: adding items, but with interim results

by LanX (Canon)
on Mar 31, 2013 at 00:24 UTC ( #1026310=note: print w/ replies, xml ) Need Help??

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  1. or download this
       DB<104> @x=1..4
     => (1, 2, 3, 4)
    ...
    
      DB<106> my $z; my @y = map { $z += $_ } @x;
     => (1, 3, 6, 10)
    
  2. or download this
      DB<107> my @y; { 
               my $z;
    ...
    
      DB<109> my @y = do { my $z; map { $z += $_ } @x }
     => (1, 3, 6, 10)
    

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