result2

handle your expected errors with a clean, fast approach

why?

a benchmark shows that returning an object is 355.18x faster than throwing exceptions, and I really like the way rust handles errors

how to use it?

install with

npm install result2
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then import it

import {Err, Ok} from 'result2';

const error = Err();
console.log('is error an Err?', error.isErr());
error.inspectErr((error) => {console.log('there is an error')});

const beef = Ok(123);
beef.match(
  (ok) => {console.log('success! value is', ok)},
  () => {console.log('there is an error')}
);
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Ok and Err are subclasses of Result. see what you can do with them at docs.

where can I use it?

Everywhere! browser, nodejs, other server runtimes (not tested yet), and it supports typescript!