Therefore, to create a multi tiered data structure, you need to put either an annonymous (hash|array), or a reference to a (hash|array).

This may be a bit pedantic of me, but there's no sense in confusing the issue.

You can't put an anonymous array (or an anonymous hash) into another structure. References are required in order to build nested data structures. It doesn't matter whether a reference refers to a named thingie or an anonymous one.

This ['anon', 'array'] is not an "anonymous array." It is a reference to an anonymous array. Similary with this reference to an {anonymous => 'hash'}. It is best to understand that these constructs actually are references and to avoid useless distinctions between them and other references.

-sauoq
"My two cents aren't worth a dime.";

In reply to Re: Re: Hash of hashes syntax by sauoq
in thread Hash of hashes syntax by jens

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.