Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic
 
PerlMonks  

Re^3: Attempting to use $_ in "sub" inside "map"

by tobyink (Canon)
on May 10, 2021 at 14:30 UTC ( [id://11132339]=note: print w/replies, xml ) Need Help??


in reply to Re^2: Attempting to use $_ in "sub" inside "map"
in thread Attempting to use $_ in "sub" inside "map"

In languages without lexically scoped variables or something approximating them, there's not really any such thing as a closure. You can still have first-class functions (i.e. coderefs); they just have no need to close over anything.

Hire me at Toby Ink Ltd or Join my OnlyFans
  • Comment on Re^3: Attempting to use $_ in "sub" inside "map"

Replies are listed 'Best First'.
Re^4: Attempting to use $_ in "sub" inside "map"
by LanX (Saint) on May 10, 2021 at 14:40 UTC
    > first-class functions (i.e. coderefs)

    Doesn't equal closures. OK PHP is using that terminology, but it's wrong ...

    ... anyway who's using PHP anymore ;-)

    > In languages without lexically scoped variables or something approximating them

    do you have an example for such a language with functions as first class objects?

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery

[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://11132339]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? • Last hour • Other CB clients
Other Users?
Others imbibing at the Monastery: (9)
As of 2024-04-23 17:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found