Beefy Boxes and Bandwidth Generously Provided by pair Networks
The stupid question is the question not asked
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Well, you could declare $x within the call to lambda, instead of surrounding it:
#!perl use strict; use warnings; sub lambda { my $fn = pop; my @foo = @_; # foo references $x, etc. sub { # Put values into referenced params ${$foo[$_]} = $_[$_] for 0..$#_; &$fn; } } my $x = 3; my $closure = lambda do { my ($x, $y); \($x, $y) => sub { print "Got $x and $y\n" } } ; $closure->($_, $_+1) for (1..4); print "And my X is $x\n";
Though I suspect that's a distinction that won't be seen as advantageous. It's just as easy to write
my $closure = sub { my ($x, $y) = @_; print "Got $x and $y\n"; };
which is the Perlish way to do what the OP wants to do.

Caution: Contents may have been coded under pressure.

In reply to Re^3: Local for lexicals by Roy Johnson
in thread Local for lexicals by JadeNB

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others wandering the Monastery: (5)
As of 2024-03-29 10:16 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found