If there is a means to provide scalar context, another to provide list context would not only solve a seeming lack in design (just a fan of symmetry that I am), but would also make for more robust module interfaces.

It's possible to return a scalar in list context (since a single scalar is zero or more scalars), which is why scalar exists.

It's not possible to return a list in scalar context (since zero or more scalars isn't a scalar), which is why list doesn't exist.

Adding list would not improve symmetry or robustness; it would just lie about what you are doing. If you want a function that returns the last scalar of a list or scalar, list is a shitty name.


In reply to Re^3: There's scalar(), but no list(). Perl could need one for rare but reasonable use by ikegami
in thread There's scalar(), but no list(). Perl could need one for rare but reasonable use by flowdy

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.