Stefby, I am actually familiar with $_ in general, but in this specific case I don't understand where its value comes from. I'm guessing it's because $_ can handle lists and say for cannot? But, why?

Here is my understanding of what's going on in your answer:

  1. values %alphabet spits out a list;
  2. $_ iterates through that list (but why wasn't my original say for iterating through the list?)
  3. @ dereferences the array (again, why didn't my original @{...} dereference it?)
  4. "   " joins the output with $".
Would you mind correcting / clarifying the above? Thank you for your help so far.


In reply to Re^6: Dereferencing a Hash of Arrays by toro
in thread Dereferencing a Hash of Arrays by toro

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.