Utterly false when it comes to hash values. Hash values are stored without change. If they notice changes it's because of bugs in the code they're observing.

Half true when its hash keys. Hash keys are always strings so if you use an object as a hash key the hash has only the stringified object as a key. You can generally expect the object to remain unchanged and continue to be an ordinary object. You can always expect the hash key to only be a string. Stringification is per perl's normal rules unless the object has stringification overloading and then it can be whatever is appropriate.

⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊

In reply to Re: HASH keys preserve class ? by diotalevi
in thread HASH keys preserve class ? by Anonymous Monk

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.