import { R } from "https://deno.land/x/ahh@v0.10.1/mod.ts";
Returns whether res strictly equals value, or false if it is an
Err.
Examples
import { R } from "./mod.ts";
console.log(R.contains(1, 1)); // true
console.log(R.contains(1, 2)); // false
console.log(R.contains(Error(), 1)); // false