Yet another inevitable TMTOWTDI:

#!/usr/bin/env perl

use strict;
use warnings;
use feature qw(say);
use Math::Prime::Util qw(sumdigits);
use Data::Dump;

my @input = (-222, -221, -21, 0, 1, 1, 2, 3, 
              5, 8, 13, 21, 34, 55, 89, 144);

my @ans = map { (sumdigits($_) % 2) ? $_ : () } @input;

dd \@ans;

__END__

Karls-Mac-mini:monks karl$ ./11146306.pl
[-221, -21, 1, 1, 3, 5, 21, 34, 89, 144]

[download]

See also map, Data::Dump, Math::Prime::Util and ntheory.

Best regards, Karl

«The Crux of the Biscuit is the Apostrophe»

In reply to Re: Newbie question by karlgoethebier
in thread Newbie question by oldB51

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.