import { fn_either } from "https://deno.land/x/fun@v2.0.0-alpha.6/mod.ts";
const { idLeft } = fn_either;
Perform the same function as Reader askLeft. Given a type B (and optionally a type A), return a FnEither<[B], B, A>. This is useful for starting a FnEither chain with a left value.
Examples
Example 1
Example 1
import * as FE from "./fn_either.ts";
import { pipe } from "./fn.ts";
const computation = FE.idLeft<number>();
const result1 = computation(1); // Left(1);
const result2 = computation(2); // Left(2);