clojure.core.reducers/reduce

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Type: function Added: Clojure unknown Examples: 2 Runnable: 1

([f coll] [f init coll])

Like core/reduce except: When init is not provided, (f) is used. Maps are reduced with reduce-kv

Examples

by ericclack on 2023-10-16 ▶

(+ 1 2 3 4) ;;=> 10 (reduce + (range 1 5)) ;;=> 10 (reduce + (range 1 13)) ;;=> 78 (reduce + (range 1 101)) ;;=> 5050

by tomdl89 on 2024-01-25 . May have evaluation errors. ▶

;; core/reduce applies f to the first 2 elements of coll if init isn't provided… (clojure.core/reduce conj '(1 2 3)) ;; => Execution error (ClassCastException) at… ;; class java.lang.Long cannot be cast to class clojure.lang.IPersistentCollection… ;; reducers/reduce calls (f) to produce an initial value, if init isn't provided… (clojure.core.reducers/reduce conj '(1 2 3)) ;; => [1 2 3]

See also

• clojure.core/reduce (22)

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