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
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Human-friendly process signals
Define a data property on an object. Will fall back to assignment in an engine without descriptors.
TypeScript definitions for @babel/core
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
2KB immutable date time library alternative to Moment.js with the same modern API
A simple cache for a few of the JS Error constructors.
ES Math-related intrinsics and helpers, robustly cached.
TypeScript is a language for application scale JavaScript development
Determine if the current node version supports the `--preserve-symlinks` flag.
Performant, flexible and extensible forms library for React Hooks
Reactive Extensions for modern JavaScript
Execute a callback when a request closes, finishes, or errors
Utility functions for working with TypeScript's API. Successor to the wonderful tsutils. 🛠️️
Share target browsers between different front-end tools, like Autoprefixer, Stylelint and babel-env-preset
TypeScript-first schema declaration and validation library with static type inference
Give a regex, get a robust predicate function that tests it against a string.
Set a function's length property
TypeScript scope analyser for ESLint
JavaScript parser and stringifier for YAML
Runtime-agnostic core of ESLint