Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
multifoo sub { $_ * 2}, sub { foo ($_) }, @things;
hoopsy hoops, right?

And now the method body:

sub onefoo { my ($reasonably_named_sub, @params) = @_; whatever; for my $foo (tweaked @params) { $reasonably_named_sub->($foo); } } sub multifoo { my ($toDo, $filter, @params) = @_; whatever; for my $foo (grep $filter->(), tweaked @params) { $toDo->($foo); } }
Yieieiaield anyone?

There is a little syntactic sugar for functions (not methods) in Perl, but the difference between using the sugar and not is tiny. If I need to pass two "pieces of code" into my subroutine, I pass them, I name them and I call them the same way I would if I had just one.

In Ruby, if your method gets a single block/closure parameter, you do not get to name the parameter, you use the ill-named statement yield and it kinda, behind the scenes, maybe, works. If you need to pass two you are, basically, screwed. But then 640KB ought to be ... I mean one block ought to be enough for anybody.

Enoch was right!
Enjoy the last years of Rome.

In reply to Re^3: Ruby vs Perl vs LISP; the killer feature lacking in Ruby by Jenda
in thread Ruby vs Perl vs LISP; the killer feature lacking in Ruby by filesurfer

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    and all is quiet...

    How do I use this? | Other CB clients
    Other Users?
    Others pondering the Monastery: (3)
    As of 2018-05-20 12:59 GMT
    Find Nodes?
      Voting Booth?