Returns (<F>(resA) => Result<E, T>)

resA or resB.

Examples

import { err, ok, or } from "./result.ts";
import { assertEquals } from "../deps.ts";

const success = ok<number>(2);
const failure = err<string>("not a 2");
const lateError = err<string>("late error");
const earlyError = err<string>("early error");
const anotherSuccess = ok<number>(100);

assertEquals(or<string, number>(lateError)(success), success);
assertEquals(or<string, number>(success)(earlyError), success);
assertEquals(or(lateError)(failure), lateError);
assertEquals(or(anotherSuccess)(success), success);
Copy

• • <F>(resA): Result<E, T>

  • Type Parameters

    • F

    Parameters

    • resA: Result<F, T>

    Returns Result<E, T>