Talk:Anonymous function

message: Java 8 now supports lambdas, so it should be added to this page.  — Preceding unsigned comment added by 12.111.88.66 (talk) 05:18, 18 August 2013 (UTC)
thread_title: Lambda in Java

message: The article might be more comprehensible if it introduced anonymous functions as *parameters* to named function.  — Preceding unsigned comment added by 68.50.114.83 (talk) 22:11, 21 November 2011 (UTC)
thread_title: Typical usage summary?

message: I wasn't sure what the difference was between "Full" and "Some" support. Added Perl as having "Full" support, since it can do the five examples: sort, map, grep, curry, reduce ('reduce' is in List::Util). And, it has fully anonymous functions. Benizi (talk) 00:16, 20 February 2008 (UTC)
thread_title:  Full vs. Some support? 

message: See Talk:First-class_function#Merge_anonymous_function_here. Pcap ping 21:40, 20 August 2009 (UTC)
thread_title:  Expert tag and merge discussion 

message: Ha! Unexpected humor! Πthon is section 3.14.
Sorry, I can't help myself. Unimath (talk) 01:49, 25 December 2010 (UTC)
thread_title:  Section 3.14 Python 

message: This sentence in the introduction struck me as odd:
: Anonymous functions are convenient to pass as an argument to a higher-order function and are ubiquitous in languages with first-class functions such as Haskell. [emphasis mine]
Why is Haskell used as an example of a language where anonymous functions are convenient–or better yet—why is there an example language at all? Anonymous functions aren't unique to Haskell are there are other more (historically) notable programming languages that use them. —BiT (talk) 02:20, 22 November 2011 (UTC)
thread_title:  Ubiquitous in languages with first-class functions... such as Haskell? 

message: in newer versions of PHP it is possible to define anonymous functions: PHP-Manual: Anonymous Functions.
so please update that paragraph. --Feudiable (talk) 20:51, 5 January 2012 (UTC)
thread_title:  PHP 5! 

message: Ruby for instance has a completely different example, this makes comparing syntaxes dificuilt.  — Preceding unsigned comment added by 116.193.144.2 (talk) 05:08, 8 March 2012 (UTC)
thread_title:  Why not use the same example for all languages? 

message: Someone put a merge tag on lambda (programming) back in Oct 2011.   Discuss this proposal here.
:Yes, merge.  Actually, a redicrect may be enough, this page is clearly more complete. linas (talk) 22:15, 8 June 2012 (UTC)
replies: text: Merge.  Lambda just means "this is an anonymous function" anyway. There's really no reason to have anything besides a line on Lambda (disambiguation) that says that in programming it means anonymous function, and then link to that. Dtm1234 (talk) 21:29, 27 June 2012 (UTC)
thread_title:  merge from [[lambda (programming)]] 

message: The article does not tell me the advantages of this. For example, why is
def divide(x,y):
  return x/y
 
def divisor(d):
  return lambda x: divide(x,d)
 
half = divisor(2)
third = divisor(3)
 
print half(32), third(32)
16 10
 
print half(40), third(40)
20 13
any better than the (IMHO) much more obvious and shorter
def divide(x,y):
  return x/y
 
print divide(32,2), divide(32,3)
16 10
 
print divide(40,2), divide(40,3)
20 13
? Thanks in advance for enlighting me! :) --2003:63:2F67:9600:F9EA:4F10:2F98:DFFE (talk) 08:07, 19 March 2014 (UTC)
thread_title:  Advantages? 

message: Why are all of the examples in the Uses section written in Python? Wouldn't this be better suited to a language that puts functions first such as Haskell?  — Preceding unsigned comment added by 2A02:1812:908:6100:2E44:FDFF:FE65:9549 (talk) 19:26, 14 April 2014 (UTC)
thread_title:  Too python centric? 

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thread_title:  External links modified 

message: No only all the examples are made by Python which is supporting Anonymous functions for expressions only, but also opening statement for Higher order functions and most of the content are about Python. It is better to rewrite this document with a language with first class functions like JavaScript or Scala. I will rewrite and add all the examples in both those languages and make this text less Python centered in two weeks if no reason provided!
Genius babak (talk) 18:19, 29 June 2018 (UTC)
thread_title:  This seems to be copied from a Python document!!! 

message: I saw that there was only a one line example of an anonymous function so I added a snippet from a course. Wasn't sure how to appropriately cite.  — Preceding unsigned comment added by 173.224.163.81 (talk) 14:05, 31 May 2019 (UTC)
thread_title:  Content added to OCaml 

message: I have removed Z shell (which had been added by  in Special:Diff/800432857) from the list since what is called anonymous function in zsh does not correspond to what is described here, i.e. closures. Anonymous functions in zsh do not intend to be like closures, as clearly explained in the zsh-users mailing-list: "These aren't closures in the sense of anonymous functions in a number of other languages; rather, they're nameless function scopes that are executed as soon as they are defined."
Note that it is possible to implement something that looks like closures in zsh (and other Unix shells) since one can manipulate shell code as strings and evaluate it with the eval builtin, but this is limited and remains very low level due to the need of quoting mechanisms in particular. In zsh, anonymous functions can help (I have given a simple example on Unix & Linux Stack Exchange), but I don't think they are really necessary, the main work being done by string construction and the eval builtin.
—Vincent Lefèvre (talk) 11:30, 25 June 2020 (UTC)
thread_title:  Z Shell (zsh) 

message: The Python example uses an "anonymous" function called foo(!)  However, the intro text says "...a function definition that is not bound to an identifier" (i.e. name).  I'm confused now (and perhaps so are other readers who come here to learn what an anonymous function is) - do anonymous functions have names or not (or both), or is the Python lambda keyword used for something else than anonymous functions (e.g. local inline function definition) and therefore an unfortunate example here?
AstroFloyd (talk) 07:00, 1 October 2023 (UTC)
thread_title:  Named anonymous function?