Correct; elements of Perl arrays and hashes must be scalars. One "converts" a variable (@array, %hash) into a reference to a variable by prefixing a backslash(\), so the reference to @array would be \@array. I believe that references can also point to subs, which means that one could have an array which has elements that are, variously, references to hashes, references to arrays, references to subs, references to scalars, and actual scalars.


emc

Information about American English usage here and here.

Floating point issues? Read this before posting: http://docs.sun.com/source/806-3568/ncg_goldberg.html


In reply to Re^3: Array of Hashes population by swampyankee
in thread Array of Hashes population by barakuda

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.