Improved typeof detection for node.js and the browser.

Determine if the JS environment has Symbol support. Supports spec, or shams.

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It runs as JavaScript and works in all modern browsers, as well as in Node.js (via jsdom). DOMPurify is written by security people who have vast background in web a

Perform async work synchronously in Node.js using `worker_threads` with first-class TypeScript support.

Get and robustly cache all JS language-level intrinsics at first require time

Determine if the current node version supports the `--preserve-symlinks` flag.

Helper functions around Function call/apply/bind, for use in `call-bind`

Prettier is an opinionated code formatter

Pure random number generator written in TypeScript

A querystring parser that supports nesting and arrays, with a depth limit

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

Object value retrieval given a string path

webpack Validation Utils

Implementation of Function.prototype.bind

Determine if a function is a native generator function.

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Detect Browser, Engine, OS, CPU, and Device type/model from User-Agent & Client Hints data. Supports browser & node.js environment

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

ES Math-related intrinsics and helpers, robustly cached.