I agree with GrandFather that changing $ref (a reference to an anonymous hash) to %hash (an ordinary hash) is the better approach here. But, for completeness, I will point out that the original design can be made to work by changing the line print "@{$ref{$k}} \n; to print "@{$ref->{$k}} \n"; — that is, by adding in the dereferencing operator ->. See perlreftut.

However, my major concern is with the regular expressions. As written, the first expression $k =~ /US/ will match the character sequence “US” anywhere in the string. It is always a good idea to prevent unwanted matches by limiting, as much as possible, the conditions under which the regex can match. For example:

if (($k =~ /^US/) && ($k =~ m{/$loc})) {

[download]

might be a useful step in this direction. It matches “US” only at the beginning of the string, and “Lynnwood”, “Edmonds”, etc. only when they follow a forward slash.

Hope that helps,

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: iterating 2 arrays by Athanasius
in thread iterating 2 arrays by sunil9009

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.