Hmm, maybe I misunderstood, but this is difficult to follow. On one hand you ask for a value of a hash with one entry, OTOH you state this situation is simplified, in your real code there are more entries.

But if there are multiple entries in the hash, LanX's suggestion will put the value of a randomly choosen hash entry in $value. This might not be what you want.

So I suggest defensive coding:
first check if the hash only holds one entry if (1 == scalar keys %hash) before (blindly) retrieving a value.


In reply to Re^3: Can I avoid loops getting the single value from a hash without knowing the key? by hexcoder
in thread Can I avoid loops getting the single value from a hash without knowing the key? by anadem

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.