type-optional

A very simple implementation of an optional type in typescript

Usage no npm install needed!

<script type="module">
  import typeOptional from 'https://cdn.skypack.dev/type-optional';
</script>

README

type-optional

The bare minimum for an optional type in TypeScript. This is just a type nothing more and nothing less.

Usage

Use the type as followed:

import { Optional, OptionalPromise } from "type-optional";
// Use OptionalPromise for async functions

function test(): Optional<string> {
    return "test";
}

function otherTest(test: string) {
    // something
}

otherTest(test()); // Argument of type 'Optional<string>' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'

Todo

  • Include some utility functions?