neverthrow
Advanced tools
Encode failure into your program.
This program contains a Result type that represents either success (Ok) or failure (Err).
This package works for both JS and TypeScript. However, the types that this package provides will allow you to get compile-time guarantees around error handling if you are using TypeScript.
Although the package is called neverthrow, please don't take this literally. I am simply encouraging the developer to think a bit more about the ergonomics and usage of whatever software they are writing. Throwing and catching is syntactic sugar for goto statements - in other words; it makes reasoning about your programs harder.
With all that said, there are definitely good use cases for throwing in your program. But much less than you might think.
Folktale is a standard library for functional programming in JavaScript. It provides similar functionality to neverthrow with its Result and Maybe types, but also includes a broader range of functional programming utilities.
fp-ts is a library for functional programming in TypeScript. It offers a comprehensive set of tools for functional programming, including Result and Option types, similar to neverthrow, but with a more extensive ecosystem and integration with other functional programming concepts.
Purify is a functional programming library for TypeScript that provides Maybe and Either types, which are analogous to neverthrow's Option and Result types. It focuses on immutability and functional programming patterns.
FAQs
Stop throwing errors, and instead return Results!
The npm package neverthrow receives a total of 1,509,574 weekly downloads. As such, neverthrow popularity was classified as popular.
We found that neverthrow demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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