Media Type Database
Perform async work synchronously in Node.js using `worker_threads` with first-class TypeScript support.
Determine if a value is an ES6 Symbol or not.
Is this value negative zero? === will lie to you
JSON for Humans
Improved typeof detection for node.js and the browser.
The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
HTTP status utility
ES Math-related intrinsics and helpers, robustly cached.
Simple key-value storage with support for multiple backends
Store information about any JS value in a side channel, using a Map
Node.js final http responder
Determine if the current node version supports the `--preserve-symlinks` flag.
A tool set for CSS: fast detailed parser (CSS → AST), walker (AST traversal), generator (AST → CSS) and lexer (validation and matching) based on specs and browser implementations
TypeScript is a language for application scale JavaScript development
TypeScript plugin for ESLint
Human-friendly process signals
TypeScript scope analyser for ESLint
TypeScript-first schema declaration and validation library with static type inference
Define a data property on an object. Will fall back to assignment in an engine without descriptors.
TypeScript definitions for @babel/core
2KB immutable date time library alternative to Moment.js with the same modern API
DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else usin