Skip to main content
Using Deno in production at your company? Earn free Deno merch.
Give us feedback
Module

x/ahh/src/option.ts>isNone

Opinionated idiomatic features for TypeScript.
leonskidev/ahh-ts
Go to Latest
function isNone
import { isNone } from "https://deno.land/x/ahh@v0.12.1/src/option.ts";

Returns whether option is a None.

Examples

Example 1

import { default as O, Option } from "./option.ts";

const num: Option<number> = undefined;

if (O.isNone(num)) {
  console.log("the number is a lie");
}

Returns

option is None