Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?
 
PerlMonks  

Re^3: u+ fails to force scalar context to empty list assignment: +( () = ... )

by LanX (Saint)
on Mar 12, 2019 at 02:32 UTC ( [id://1231148]=note: print w/replies, xml ) Need Help??


in reply to Re^2: u+ fails to force scalar context to empty list assignment: +( () = ... )
in thread u+ fails to force scalar context to empty list assignment: +( () = ... )

Interesting!

> Shorter alternative:

Well ...

the sub ctxt() is just using the well documented wantarray the rest is only cosmetics to provide readable output.

If I wanted to golf, I could also do:

>perl -E"sub f{say qw/s l v/[wantarray//'2']};+f;$a=+f;@a=+f"
v
s
l

[download]

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

  • Comment on Re^3: u+ fails to force scalar context to empty list assignment: +( () = ... )
  • Download Code

Replies are listed 'Best First'.
Re^4: u+ fails to force scalar context to empty list assignment: +( () = ... )
by ikegami (Patriarch) on Mar 12, 2019 at 06:16 UTC

    So your alternatives to $a = +f() are magical code and incomprehensible code?

[reply]
[d/l]
      No....

      Cheers Rolf
      (addicted to the Perl Programming Language :)
      Wikisyntax for the Monastery FootballPerl is like chess, only without the dice

[reply]

In Section Seekers of Perl Wisdom

Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?

www.com | www.net | www.org
Node Status?
node history
Node Type: note [id://1231148]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? • Last hour • Other CB clients
Other Users?
Others pondering the Monastery: (2)
As of 2024-04-25 23:04 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found