Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Easily read/write JSON files.

Find a file or directory by walking up parent directories

Pass two numbers, get a regex-compatible source string for matching ranges. Validated against more than 2.78 million test assertions.

Detect whether a terminal supports color

ECMAScript AST recursive visitor

Glob matching for javascript/node.js. A replacement and faster alternative to minimatch and multimatch.

VSCode Language Server Protocol implementation

Delete files and directories

ð ¦ð Safe, stable, reproducible projects

Language service for CSS, LESS and SCSS

A json rpc implementation over streams

A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.

The semantic version parser used by npm.

A fully persistent balanced binary search tree

JSDoc parser

An object schema merger/validator

Get the first path that exists on disk of multiple paths

Debounce promise-returning & async functions

utility box for ECMAScript language tools

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

Match balanced character pairs, like "" and ""

ECMAScript parser

A collection of essential TypeScript types