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Module

x/fun/mod.ts>either.fold

A collection of algebraic data types, lenses, and schemables based on a light weight higher kinded type implementation. Written for deno.
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function either.fold
import { either } from "https://deno.land/x/fun@v2.0.0-alpha.6/mod.ts";
const { fold } = either;

Parameters

onLeft: (left: L) => B
onRight: (right: R) => B

Returns

(ta: Either<L, R>) => B