The exhaustive Pattern Matching library for TypeScript.

Library that use the C Divide operation between two floats, to produce the same floating point error. Result is a string with 15 decimal places.

An efficient, standards-compliant library for representing results of successful or failed operations

extended POSIX-style sprintf

Extend native Error to create custom errors

Let your JS API users either give you a callback or receive a promise

No description provided.

Creates a Promise that waits for a single event

Stop throwing errors, and instead return Results!

Tired of writing repetitive `try-catch` blocks? **Advance Await** introduces an elegant way to handle errors in **async functions** and **Promises** using `[error, result]` tuples—no more cluttered error handling!

Parse the things that can be arguments to `npm install`

asynchronous function queue with adjustable concurrency

Detect agentic coding environments and AI assistant tools

A Promise-based interface into processes created by child_process.spawn

asynchronous before/error/after hooks for internal functionality

Development-only error handler middleware

Settle an async function.

Lightweight Result type with generator-based composition

A TypeScript result type taking cues from Rust's Result and Haskell's Either types

Replay-safe model-free head/middle/tail pruning for tool-result surface nodes