fold

import { fold } from "https://github.gh-proxy.cn/raw.githubusercontent.com/baetheus/fun/main/datum.ts";

Fold over a Datum to produce a single value.

@example

import { fold, initial, replete } from "./datum.ts";

const folder = fold(
  (acc: number, value: number) => acc + value,
  0
);

console.log(folder(initial)); // 0
console.log(folder(replete(5))); // 5

function fold<A, O>(foao: (o: O, a: A) => O, o: O): (ta: Datum<A>) => O;

fold<A, O>(foao: (o: O, a: A) => O, o: O): (ta: Datum<A>) => O

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§Type Parameters

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§Parameters

foao: (o: O, a: A) => O

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o: O

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§Return Type

(ta: Datum<A>) => O

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