True MythReally safe types.

Safe, idiomatic null, error, and async code handling in TypeScript, with Maybe, Result, and Task types that are really nice.

Maybe

Better than null and undefined everywhere.

Result

Treat errors like they matter (because they do).

Task

If Promise had more features and handled errors!

A nice toolbelt

Helpers for many common situations.

Idiomatic APIs

Feels like working with built-in JavaScript and TypeScript types.

Functional-friendly

Like to pipe(your, data, around)? We’ve got you.

True Myth provides standard, type-safe wrappers and helper functions to help you with three extremely common cases in programming:

not having a value
having a result where you need to deal with either success or failure
having an asynchronous operation which may fail

You could implement all of these yourself—but it's much better to just have one extremely well-tested library you can use everywhere to solve this problem once and for all.

Read the docs for more!