I was very intrigued by ikegami's post, so I went ahead and benchmarked the two approaches: 

use Benchmark 'cmpthese';
cmpthese( -1,
          { x    => sub { my @list = ( 'N/A' ) x 14 },
            push => sub { my @list; push @list, $_ for 1 .. 14 } }
        );



          Rate times  push
x      89321/s    --  -23%
push  115925/s   30%    --

[download]
Where would I be without Benchmark?

the lowliest monk

In reply to Re^2: Auto-filling an array by tlm
in thread Auto-filling an array by nimdokk

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