But that shows more about you than...

That's part of why I used the word "personally".

In the code at $work right now, I find this (variable names changed to protect the guilty):

map { push @result, $_ if $_ } @{ $obj->method };

Why was this not written as...

push @result, grep { $_ } @{ $obj->method };

In fact, why would I ever have push as the only thing inside a map (a pattern I see repeated throughout code written by this programmer)? Maybe there used to be more code there that made that make sense?

Code should have some semantic meaning beyond the nuts and bolts of what it does. To me, map means "transform one list into another list". It does that using a loop, and so it can be used more generally for looping (like the other constructs you mention), but it has a specialty. I'd say the same thing about grep, which, in void context, is identical to map.


In reply to Re^3: map in void context by kyle
in thread map in void context by dharanivasan

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.