- A composable, higher-order transformation that abstracts the process of reducing (folding) a collection. In functional programming, a transducer takes a reducing function (the operation that combines an accumulator with each element) and returns a new reducing function that incorporates additional behavior (e.g., mapping, filtering, flattening) while preserving the original reduction semantics.
- Related terms: Higher-order function, Higher-order component, First-class function, Generator function
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