Call me silly, but I'm frustrated a bit with the following:
I would like to make an array of say, a thousand elements each filled with 0. What would be the fastest, cleanest way of doing this?

For a string we can replicate a substring:

$string = 0 x 1000;

This will give me a string of a thousand 0's.

For making an array in similar fashion this is the shortest method I can think of:

$_ = 0 foreach (@array = (1..1000));

I could also use split:

@array = split //, 0 x 1000;

But this I think will be more costly because you invoke the regexp engine, I guess.

So my question is: Is there some infinitely better, more perly method of making an array of predefined length with identical values? (Comparable maybe to the more satisfying way of doing something similar for a string?)

Thanks for all the help!

In reply to Making an array of predifined length with default values by johnvandam

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.