Why would the assignment of a list in scalar context

There's no list assignment in scalar context in your code. The assignment ("=") in each snippets is a list assignment evaluated in void context. "=>" is not an assignment, it's a fancy version of ",".

You forced the list/comma operator to be evaluated in scalar context, and the list/comma operator in scalar context returns its last element. (Speaking loosely, see perlop for details.)

In line 1 below, the parens around $a1 force a scalar context.

It's the opposite. They force the selection of the list assignment operator, which in turn applies a *list* context to both its LHS and RHS operands. See Mini-Tutorial: Scalar vs List Assignment Operator.


In reply to Re: Newbie question - imposing context by ikegami
in thread Newbie question - imposing context by erictully

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.