Oft-forgotten feature about the curly-fn package: if you don’t include any
arguments, it works as a shorthand for curry. So really, the idiomatic curly-fn
solution would just be #{map sqr}, the shortest of the four. (Disclaimer: I
wrote the curly-fn package.)
Tongue-in-cheek comments aside, the point-free package really is great, and any
one of the crazy function shorthands should work just fine. You can also avoid
needing special function syntax entirely by just using `curry` from
racket/function directly, like (curry map sqr). And obviously you could also
always just use the full lambda syntax, but brevity is nice.
This is an area in which there are probably too many options, but opinions are
strong, and we have not standardized (yet). Feedback is welcome!
> On Dec 12, 2015, at 4:33 PM, Jack Firth <jackhfi...@gmail.com> wrote:
>
> There's also the fancy-app, curly-fn, and afl packages for different ways of
> writing anonymous functions (cut and cute from srfi/26 always seemed awkward
> to me).
>
> cut:
> (cut map sqr <>)
>
> fancy-app:
> (map sqr _)
>
> curly-fn
> #{map sqr %}
>
> afl:
> #λ(map sqr %)
>
> point-free doesn't give you special syntax for writing functions, ~> is just
> a regular procedure. So it works with all of them. (Disclaimer: I wrote the
> point-free package)
>
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