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

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

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

Pure random number generator written in TypeScript

Fast math typesetting for the web.

Hooks for managing, caching and syncing asynchronous and remote data in React

Simple and complete DOM testing utilities that encourage good testing practices.

A light-weight module that brings Fetch API to node.js

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

Property based testing framework for JavaScript (like QuickCheck)

Define multiple non-enumerable properties at once. Uses `Object.defineProperty` when available; falls back to standard assignment in older engines.

resolve like require.resolve() on behalf of files asynchronously and synchronously

Returns an array of Typed Array names that are available in the current environment

Determine if a function is a native generator function.

webpack Validation Utils

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

ES6 spec-compliant RegExp.prototype.flags shim.

Fire events the same way the user does

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

ES Math-related intrinsics and helpers, robustly cached.