XPost: comp.lang.scheme

On 2024-07-11, HenHanna <HenHanna@devnull.tb> wrote:

There's no way to write

  (lambda (x) (list (car x) (length x)))

       using Cut or Cute ???

That's more of a job for a jig called juxt:

This is the TXR Lisp interactive listener of TXR 294.
Quit with :quit or Ctrl-D on an empty line. Ctrl-X ? for cheatsheet.
TXR's car insurance now offers cdr coverage for bumper-to-bumper
protection.

[juxt car length]

#<intrinsic fun: 0 param + variadic>

[*1 '(1 2 3)]

(1 3)

[*1 '(1 2 3 4 5 6)]

(1 6)

juxt takes functions as its arguments and returns a function.
When that function is invoked, it passes its argument to each
of the child functions, and returns a list of the values.


--
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

XPost: comp.lang.scheme

There's no way to write

  (lambda (x) (list (car x) (length x)))

       using Cut or Cute ???

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)