Returns ((right) => List<T>)

The concatenated list.

Examples

import { List, empty, plus, singleton, toIterator, unCons } from "./list.ts";
import * as Option from "./option.ts";
import { assertEquals } from "../deps.ts";

const singleZero = singleton(0);
const emptiness = empty<number>();

const iter = toIterator(plus(singleZero)(singleZero));
assertEquals(iter.next(), { value: 0, done: false });
assertEquals(iter.next(), { value: 0, done: false });
assertEquals(iter.next(), { value: undefined, done: true });
assertEquals(
    unCons(plus(singleZero)(emptiness)),
    Option.some([0, empty()] as [number, List<number>]),
);
assertEquals(
    unCons(plus(emptiness)(singleZero)),
    Option.some([0, empty()] as [number, List<number>]),
);
assertEquals(unCons(plus(emptiness)(emptiness)), Option.none());
Copy

• • (right): List<T>

  • Parameters

    • right: List<T>

    Returns List<T>