hello, i'm trying to do
$foo->baz('abe'=>&linc, map {"$_" => sub {return '<H1>'.$_.'</H1>'}; } '1'..'5'
but it s not working. I check my logs and apparently $_ is undefined.

How'd that happen?

I fixed it by saying

map { $a = $b = $_; $a => sub {'<H1>'.${b}.'</H1>'} } 1..5,
which kinda worked but not really ($b didn't change). finally after i've said my($a,$b) it all worked out as planned.

I remember this being a scope issue (it's documented), but that doesn't explain what happened to $_?

Can somebody confirm/deny/shed some light on this?
(i'm running Win32 ActivePerl v5.6.1 build 631)


In reply to funky $_ with map {} 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.