The ultimate javascript content-type utility.

Detect whether a terminal supports color

Match balanced character pairs, like "{" and "}"

Turn a function into an `http.Agent` instance

when you want to fire an event no matter how a process exits.

YAML 1.2 parser and serializer

Browser-friendly inheritance fully compatible with standard node.js inherits()

Get callsites from the V8 stack trace API

Ignore is a manager and filter for .gitignore rules, the one used by eslint, gitbook and many others.

A tiny (183B to 210B) and fast utility to ascend parent directories

A comprehensive library for mime-type mapping

fast, tiny `queueMicrotask` shim for modern engines

Get the PATH environment variable key cross-platform

A set of utility functions for expect and related packages

A JavaScript parser built from the Hermes engine

Check if argv has a specific flag

Error constructor for test and validation frameworks that implements standardized AssertionError specification.

Higher-level content negotiation

Check if a path is a file, directory, or symlink

Run multiple promise-returning & async functions with limited concurrency