Optionals
Rust-like error handling and options for TypeScript, Node and Deno!
This module allows you to remove null
and undefined
from your projects with the help of ES6 Symbols and helper methods. Inspired by Rust's Option
, Result
enums.
Why should you use Optionals?
The standard practice of returning null
or undefined
when no other value can be returned means that there is no simple way to express the difference between a function that has returned "nothing" and a null
return type. There are also no easy ways to handle errors in a functional pattern. Rust's implementation of Option
and Result
guarantees correctness by expressly forcing correct result-handling practices.
This module provides a minimal, fast and simple way to create expressive functions and perform better pattern matching on resulting values! ๐
Usage
// Result
import { Result, Ok, Err } from "https://deno.land/x/[email protected]`/mod.ts";
// Option
import {
Option,
Some,
None,
} from "https://deno.land/x/[email protected]/mod.ts";
Documentation
Please find further documentation on the doc page!