I agree with Colin, the cognitive load is greater than benefits of such
approach. BTW you can use comp to chain consecutive map transformation
functions. (map (comp pacify wrangle) things)
JW
On Thu, Feb 6, 2014 at 3:40 PM, Korny Sietsma <ko...@sietsma.com> wrote:
> Hi folks,
>
> I seem to regularly find myself writing ->> threaded code that follows
> similar patterns:
>
> (->> things
> (map wrangle)
> (map pacify)
> (filter effable)
> (map #(aggravate % :bees :sharks))
> (reduce mapinate {})
>
> i.e. all stages of the code actually operate on a collection rather than a
> single value - usually with a call to "map" at each stage. This example is
> over simplified - often many of the calls to map are inline functions,
> which makes this even more verbose.
>
> I wonder if there would be value in (yet another) variant on '->' that
> assumes you are threading a collection and calling 'map' by default. I'm
> not sure of the syntax that would work though. Something like:
>
> ([]-> things
> wrangle
> pacify
> [:filter effable]
> (aggravate :bees :sharks)
> [:reduce mapinate {}])
>
> I'm not sure about the syntax for non-map functions, I'm not even sure if
> this is worthwhile. Thoughts?
>
> - Korny
>
> --
> Kornelis Sietsma korny at my surname dot com http://korny.info
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