Depends on many things as to how "efficient" you can get . Here's one possibility:

my @envars;

push @envars,{ value => 23, description => 'temperature in Celsius' },
              { value => 56, description => 'relative humidity in %' }
+,
              { value => 1008.1, description => 'pressure in millibars
+' },
              { value => 4, description => 'dewpoint in degrees Celsiu
+s' },
              { value => 344, description => 'total column ozone in Do
+bson Units' };

[download]

You could do better by not repeating the text "value" and "description" several times.

# say you've got 2 parallel arrays @values and @descriptions
my @envars = map({ value => $values[$_], description => $descriptions[
+$_] }, 0..$#values);

[download]

Or perhaps you really want to just push them onto the array rather than clobbering it each time...

# Same assumption as before ...
for my $i (0..$#values) {
  push @envars, { value => $values[$i], description => $descriptions[$
+i] };
}

[download]

duff

In reply to Re: Populating an Array of Referenced Values by duff
in thread Populating an Array of Referenced Values by Anonymous Monk

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.