logo
byethrow
Guide
Examples
API Reference
Guide
Examples
API Reference
logo
byethrow

Getting Started

Introduction
Why byethrow?
Quick Start
Importing Result

Best Practices

Result vs throw
Custom Error
Pattern Matching

Tools & Integrations

MCP Server
ESLint Plugin

Last Updated: 2025/10/13 08:39:30

Previous PageIntroduction
Next PageQuick Start

#Why byethrow?

@praha/byethrow strikes a thoughtful balance in the Result type ecosystem. While there are other excellent libraries available, byethrow offers a unique combination of features that make it stand out:

#The Sweet Spot Between Simple and Powerful

  • More complete than neverthrow: While neverthrow is a great library, it occasionally lacks certain features you might need in real-world applications. Byethrow fills those gaps while maintaining simplicity.

  • Less complex than effect-ts/fp-ts: These libraries are incredibly powerful but can introduce unnecessary complexity and overhead for many use cases. They often require a steep learning curve and extensive knowledge of functional programming concepts.

  • Better than vanilla try/catch: Traditional error handling mixes error management with business logic, making code harder to reason about and test.

#Designed for Real-World Use

Byethrow was built with practical development needs in mind:

  • Team-friendly: Easy to adopt incrementally without requiring your entire team to learn advanced functional programming
  • TypeScript-first: Excellent type inference and safety without sacrificing developer experience
  • Performance-conscious: Lightweight runtime with excellent tree-shaking support
  • Predictable: Consistent API design means less cognitive overhead when switching between projects

#Why not try/catch?

Traditional error handling in JavaScript often leads to scattered try/catch blocks and unclear control flow. Result types offer several advantages:

  • Explicit Error Handling: Errors become part of your function's return type, making them impossible to ignore
  • Composable Operations: Chain operations together with built-in error propagation
  • Type Safety: TypeScript can track both success and error types throughout your application
  • Cleaner Code: Separate your business logic from error handling concerns