Clojure: Transducers

https://clojure.org/reference/transducers

Article

  • Transducers are composable, reusable transformation functions decoupled from data source/sink
  • Eliminate intermediate collections, reducing memory overhead in data pipelines
  • Work across lazy seqs, channels, and any reducible context

Discussion

  • Injest library praised for making transducer composition feel like normal threading macros
  • Key insight: performance wins come from eliminating intermediate collection allocations
  • Haskell and Java (Gatherers API) noted as alternatives; Scheme SRFI-171 also mentioned

Discuss on HN


Type Link
Added Apr 21, 2026
Modified Apr 21, 2026