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This is not related to electrical transducers, which (without any additional scoping context) was what I thought this article was about.

Relabeling it "Clojure transducers" would help the title in every way. But it's been up for 7 hours now, so we'll see if it changes.

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Transducer is the standard term inside CS for this model of computation [1]. Often there are some disambiguating terms, such as finite-state transducer, but this article does not limit itself to any particular kind. Of course Hacker News has content from both fields so the overloading of the term is unfortunate.

[1] https://en.m.wikipedia.org/wiki/Finite-state_transducer

Transducers don’t really directly map to any existing CS construct. In fact, Clojure transducers occupy a strange twilight world between “fold endomorphism” and “stream transformer”. Most transducers are both. Some are just one or the other.

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