Hi,
At a recent Amsterdam Clojure Meetup, we were looking into transducers.
We could not find any situation where the "zero arity" println would get
called when using this futile transducer:
(defn println-transducing-fn
[reducing-fn]
(fn new-reducing-fn
([]
(println "zero arity")
(reducing-fn))
([accumulation]
(println "one arity")
(reducing-fn accumulation))
([accumulation new-input]
(println "two arity")
(reducing-fn accumulation new-input))))
So, out of curiosity; what would be an example (by using transduce /
sequence / iteration / core.async/chan etc) that would print "zero arity"?
-Gijs
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